CompTIA A+ Certification All-in-One Exam Guide

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causing the card to fail. Grab a can of electronic contact cleaning solution anduse it instead. Electronic contact cleaning solution is designed for exactly thispurpose, cleans contacts nicely, and doesn’t leave any residue. You can findelectronic contact cleaning solution at any electronics store or online, ofcourse.A fully inserted expansion card sits flush against the back of the PC case—assuming the motherboard is mounted properly, of course—with no gapbetween the mounting bracket on the card and the screw hole on the case. Ifthe card is properly seated, no contacts are exposed above the slot. Figure 6-28 shows a properly seated (meaning fitted snugly in the slot) expansion card.
No information found
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ABOUT THE AUTHORMichael Meyers is t
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Copyright © 2019 by McGraw-Hill Ed
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To my grandson, William Siegmund Ke
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Chapter 21 The InternetChapter 22 V
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The Computing ProcessThe Computing
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Chapter ReviewQuestionsAnswersChapt
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Supplying DCInstalling and Maintain
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Maintaining and Troubleshooting Har
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Chapter 12 Windows Under the Hood10
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AnswersChapter 15 Working with the
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Application ProblemsApplication Ins
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Chapter 19 Local Area Networking100
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Internet Application Protocols10021
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Hardware/Device ReplacementTroubles
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ScannersCopy and Fax ComponentsAuto
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Implementing Change (Scenario)Disas
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Looking forward to many more.To Dud
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with every day? Seriously, count th
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by the Computing Technology Industr
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CompTIA offers several tracks to pu
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Network Associate (CCNA), plus nume
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Try This! Recommending an OSImagine
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asked how to set up and maintain vi
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Finding a Testing CenterPearson VUE
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their Web site and schedule the exa
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information they must know for the
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• Installing, running, and closin
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Safety and ProfessionalismCHAPTER 1
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Figure 1-1 Casual FordI have a ques
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you an idea of what we are trying t
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Figure 1-3 Don’t do this!It’s f
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rarely felt that technicians I’ve
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down, or do anything else necessary
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Figure 1-4 Never accuse!Follow up w
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this book!Beyond basic manners, nev
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Be Prepared!Effective communication
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prevalent in dry, cool environments
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Although having an antistatic wrist
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speakers in particular, are suscept
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Figure 1-10 Author’s go-to iFixit
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Figure 1-12 What a strange, bad tri
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Troubleshooting MethodologyAn effec
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cover backup options in detail in C
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fundamental understanding of the co
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Figure 1-16 Ford the Tech asks for
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malware is installed so a computer
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and check the records to find other
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C. Document any particularly import
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CHAPTER 2The Visible ComputerIn thi
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calculations. The most common types
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Figure 2-4 A point of sale computer
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Figure 2-5 The Microsoft Windows 10
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Figure 2-7 Monument Valley II game
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(CPU), usually a single, thin wafer
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what makes a good computer technici
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Figure 2-11 PC with common peripher
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Figure 2-13 Inside the system unitF
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Figure 2-16 Tablet computerWe could
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• The OS enables users to determi
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Other visible items are as follows:
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such as Windows Phone, to create a
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Figure 2-21 Windows 8 Start screen
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Figure 2-23 Apps sorted by nameWind
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Figure 2-25 Charms accessed by curs
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interface with an active applicatio
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WINDOWS LOGO KEY + LEFT ARROW or RI
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Figure 2-30 Mission Control button
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Figure 2-33 Ubuntu Linux desktop en
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Figure 2-35 File ExplorerThe defaul
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Figure 2-36 File Explorer viewing M
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Figure 2-38 Mike’s Home directory
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NOTE The Control Panel enables you
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Figure 2-41 Windows 7 System Tools
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Command Line The Windows command-li
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from the big three in Windows 7. Th
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Figure 2-47 Search charm with Contr
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Command Line The command-line inter
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line (cmd.exe) by typing cmd or com
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macOSmacOS has two key launch point
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Figure 2-55 Accessing All SettingsF
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A. CharmsB. DesktopC. Mission Contr
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9. C. Terminal is the equivalent of
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EXAM TIP CompTIA only uses the term
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Imagine that we install a set of 16
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Figure 3-5 Here “1” means on,
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Figure 3-7 CPU codebookIn this code
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wire (most diagrams label the clock
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Figure 3-11 Clock speed printed on
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directly to the CPU’s clock wire,
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decimal number 5 written in binary.
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Figure 3-14 RAM as a spreadsheet•
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Figure 3-16 Extending the EDBWait a
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Figure 3-18 Address busBy turning t
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Well, yes, I am, but not out of mal
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00000000000000001000Hey, wouldn’t
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portable computers. Most of Intel
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companies use code names to keep tr
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Desktop Versus MobileMobile devices
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All modern CPUs run at some multipl
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64-Bit ProcessingOver successive ge
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Parallel ExecutionModern CPUs can p
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part, the arithmetic logic unit (AL
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many times.Pipelining CPUs work fan
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Figure 3-28 CPU-Z displaying the ca
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Figure 3-30 Windows Task Manager wi
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Figure 3-31 CPU-Z showing the cache
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discrete microprocessor that differ
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Everybody calls the NX bit technolo
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EXAM TIP The CompTIA A+ 1001 object
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based motherboards, the sockets hav
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Figure 3-36 Underside and top of a
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Figure 3-38 Fully opened socketAlig
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Figure 3-39 Intel stock heat-sink a
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Figure 3-41 Liquid-cooled CPUSevera
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Figure 3-42 CPU fan power standout
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Figure 3-44 AMD stock heat-sink and
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NOTE Chapter 5, “Firmware,” goe
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Figure 3-47 CMOS-clear jumperTo cle
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result in a system running slowly o
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C. The external data bus provides a
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Answers1. B. The CPU uses registers
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Figure 4-1 Mass storage holds progr
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computers—not just PCs—since th
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So if some of the commands are more
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Figure 4-7 A 72-pin SIMMModern CPUs
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Development of newer, wider, and fa
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RDRAMWhen Intel was developing the
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Figure 4-13 172-pin DDR SDRAM micro
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Figure 4-14 A motherboard showing f
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Figure 4-16 DDR2 DIMM on top of a D
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that can reduce the air conditionin
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Figure 4-17 Double-sided DDR SDRAML
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notice when such a rare event happe
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Working with RAMWhenever people com
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Let’s assume you have a PC with 4
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Figure 4-23 Program B being unloade
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Figure 4-26 Program C is swapped to
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sealed. Today many desktop and lapt
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Figure 4-30 Dedicating a flash driv
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NOTE The freeware CPU-Z program tel
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Your motherboard should detect and
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hard to handle. Wide acceptance of
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memory issues but not necessarily s
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cause an error. Still, you can find
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D. Fetch interval5. How does an NMI
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for the proper slots.)7. A. You can
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We Need to TalkFor a keyboard or a
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Figure 5-4 Ancient 430VX chipset sh
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Figure 5-6 Everything connectingIt
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Figure 5-8 Electronic view of the k
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erased every time you turned off th
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Figure 5-11 Function of the flash R
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needs a place to store all its sett
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Figure 5-14 Gigabyte system setup u
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Figure 5-15 ASUS UEFI system setup
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CPUs, hard drives and optical drive
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Figure 5-20 Boot tabThe Tool tab (s
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Figure 5-22 Information tabThe Conf
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default in BIOS, so if your virtual
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computing. We’ll hit the subject
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EXAM TIP BIOS security-related opti
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drive controller—basically just a
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almost any device for your computer
Page 333 and 334: codes before and during the video t
Page 335 and 336: Figure 5-31 POST card in actionPOST
Page 337 and 338: devices so you can run utilities to
Page 339 and 340: Figure 5-34 Options for resetting C
Page 341 and 342: Figure 5-36 Changing shunt location
Page 343 and 344: booting are slim—but you’ll sti
Page 345 and 346: NOTE A failed BIOS/UEFI update—wh
Page 347 and 348: needs BIOS.C. All hardware built in
Page 349 and 350: 4. B. Most likely the device has an
Page 351 and 352: Figure 6-1 Traces visible beneath t
Page 353 and 354: EXAM TIP CompTIA A+ 1001 exam objec
Page 355 and 356: NOTE In case your curiosity has run
Page 357 and 358: Figure 6-5 Keyboard connector on th
Page 359 and 360: Figure 6-7 ATX portsThe ATX form fa
Page 361 and 362: Figure 6-9 A microATX motherboardEX
Page 363 and 364: Figure 6-10 Mini-ITXOne of the grea
Page 365 and 366: vary in features, performance, and
Page 367 and 368: Figure 6-13 Driver disc for ASUS mo
Page 369 and 370: building a custom rig is selecting
Page 371 and 372: case, another example (like USB) of
Page 373 and 374: Figure 6-18 Expansion slots connect
Page 375 and 376: architecture (see Figure 6-22) in t
Page 377 and 378: PCI ExpressPCI Express (PCIe) is st
Page 379 and 380: Figure 6-25 PCIe ×1 slot (top)NOTE
Page 381 and 382: Optimally, a card should always be
Page 383: Figure 6-27 Always secure all cards
Page 387 and 388: Figure 6-29 Part of a Readme file s
Page 389 and 390: Figure 6-31 Unsigned driver warning
Page 391 and 392: Figure 6-33 Driver rollback feature
Page 393 and 394: NOTE Many PC enthusiasts try to squ
Page 395 and 396: Figure 6-36 An “!” in Device Ma
Page 397 and 398: replacement and shows you some of t
Page 399 and 400: of the more popular brands are ASUS
Page 401 and 402: are too small for a regular ATX mot
Page 403 and 404: motherboards can be a wiggling, twi
Page 405 and 406: Figure 6-42 Sample of case wiresNOT
Page 407 and 408: If you get no power at all, check t
Page 409 and 410: • Faulty component• Buggy devic
Page 411 and 412: you would most likely be better off
Page 413 and 414: C. The system resources have been a
Page 415 and 416: 3. C. The Mini-PCI format conserved
Page 417 and 418: Figure 7-1 Power supply about to be
Page 419 and 420: Figure 7-2 Electrical voltage as wa
Page 421 and 422: Figure 7-4 Diagrams showing DC and
Page 423 and 424: Although the higher voltage differs
Page 425 and 426: Figure 7-7 Author’s ancient but r
Page 427 and 428: aren’t as accurate as a multimete
Page 429 and 430: the power cuts out completely, it
Page 431 and 432: NOTE Surge suppression isn’t just
Page 433 and 434: NOTE There are two main types of UP
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Table 7-1 Typical UPS Devices1001Su
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come with standard connectors for t
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walk through the following steps on
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Figure 7-19 Molex splitterATXThe or
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unofficially but commonly called th
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multi-rail PSU you buy today can ha
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can split into two 4-pin sets, one
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into DC current, is like a person s
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the power supply provides enough wa
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First, running a power supply at le
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Figure 7-29 Removing power supply f
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Figure 7-31 Shorting the soft on/of
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Figure 7-33 3-wire fan sensor conne
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cool.In the typical layout of case
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NZXT. Just check the decibel rating
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NOTE When shopping for fans, rememb
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what do you do if you don’t have
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Power supplies break in computers m
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Figure 7-41 Modular-cable power sup
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B. DC has polarity. The red lead sh
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Mass Storage TechnologiesCHAPTER 8I
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Figure 8-1 An enclosed HDD (top) an
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can lower the temperature of your d
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Solid-State DrivesBooting up a comp
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EXAM TIP Although you can still buy
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A lot of factors determine which co
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NOTE Check out www.snia.org for a g
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NOTE The last ATA/ATAPI standard th
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PATA ribbon cable as an IDE cable.
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overhead greatly enhances the speed
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External SATA used shielded cable i
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NVMeAHCI was designed for spinning
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enable you to continue working thro
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Figure 8-19 Disk stripingThe one an
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NOTE RAID 5 sounds great on paper a
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Hardware is used when you need spee
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Most traditional RAID setups in the
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you during CompTIA A+ 1001 exam pre
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Figure 8-25 Master/slave jumpers on
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Cabling SATA DrivesInstalling SATA
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Figure 8-28 mSATA SSD secured on mo
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determine how drives are listed—a
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operating system on each hard drive
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B. 12 inchesC. 18 inchesD. 1 meter7
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Implementing Mass StorageCHAPTER 9I
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Figure 9-1 Sectors on an HDDSolid-s
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Figure 9-4 Partitions on an SSDYou
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record use this table to determine
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partition table called active that
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Figure 9-9 An extended partition co
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and you want to make half of it E:
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NOTE Okay, if GPT stands for GUID p
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Figure 9-12 Windows 10 Disk Managem
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Figure 9-13 Note that the context m
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Formatting, the process of making a
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Figure 9-16 32-bit FATNOTE Hexadeci
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cluster’s status area in the FAT.
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Figure 9-19 End of file reachedAfte
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Assuming these files are all in the
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that once held mom.txt. As Windows
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SSDs, once data was written into a
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CompressionNTFS enables you to comp
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Table 9-3 NTFS Cluster SizesBy defa
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only read NTFS.File Systems in Linu
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Figure 9-26 Windows 10 bootable med
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Figure 9-28 Where do you want to in
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Figure 9-30 New partition with Syst
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NOTE Windows offers a command-line
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Figure 9-33 Initializing a driveDis
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Specify a volume size and click Nex
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You have a few more tasks to comple
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partitions no longer exist; dynamic
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disk and choose New Simple Volume t
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Figure 9-41 Selecting the Extend Vo
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basic disk without losing all the d
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Figure 9-44 Two striped drives (Win
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Figure 9-46 Selecting drives for th
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Figure 9-48 Adding photos to the mo
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2. Make a stripe set.3. Make them i
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installation. Windows simply prompt
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Figure 9-53 Ready to create the sto
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laid out as a two-way mirror. Rathe
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They go through all the drive’s f
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Figure 9-55 Disk Utility optionsNow
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NOTE If you manage a system with a
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Figure 9-58 Disk CleanupDisk Cleanu
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can create the invalid media error.
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You may also see Windows error mess
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No Boot Device PresentIf it’s a s
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RAID Not Found The CompTIA A+ 220-1
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The only problem with Partition Com
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Chapter ReviewQuestions1. Which is
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A. Simple spaceB. Two-way mirror sp
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Whenever you’re dealing with a de
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certain number of USB ports, there
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of 10 Gbps!EXAM TIP The USB Impleme
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A/mini USB B, and micro USB A/micro
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The keyed USB Standard-A connector
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Figure 10-10 USB hubFigure 10-11 Mo
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Figure 10-12 Power Management tabSI
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chains can extend up to 3 meters. W
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about an add-on Thunderbolt card? A
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the repeat rate (how quickly the ch
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electrical components, you might be
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Figure 10-20 Mouse Settings and Con
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Figure 10-22 Laptop with built-in f
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software that comes with the scanne
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Barcode/QR ScannersBarcode scanners
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data centers where multiple servers
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the KVM switch, you won’t get the
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Figure 10-32 Game controller proper
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Figure 10-33 A type of digitizer kn
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example, you use a signature pad.EX
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Figure 10-36 USB connection port on
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sound waves in electronic format th
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as the WAV format in the PC world.
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Another popular speaker addition is
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NOTE Both HDMI and DisplayPort are
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Figure 10-44 Headsets are great for
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compressed, the file is placed into
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Figure 10-47 Thumb drivesThe smalle
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Figure 10-49 SD, miniSD, and microS
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Figure 10-50 xD-Picture CardEXAM TI
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Going beyond those big three househ
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Figure 10-52 A CD-R disc, with its
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Figure 10-54 Optical drive in Windo
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Table 10-3 DVD Versions/CapacitiesD
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picture quality on your HDTV, you s
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Figure 10-59 Label on optical drive
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A. Five speakers plus a subwooferB.
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CHAPTER 11Building a PCIn this chap
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EXAM TIP Expect a question or two o
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Figure 11-1 A typical thick clientT
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Figure 11-2 Ubuntu desktop hardware
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• Stores only basic applications;
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Figure 11-5 Author’s gaming rig,
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components in an industrial setting
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Video editing workstations, like CA
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Figure 11-6 Sharing a printer in Wi
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Figure 11-8 Media streaming options
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minimum (and thus the need to get t
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Figure 11-10 Windows 10 Welcome scr
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NOTE Microsoft has shifted with the
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the personal settings (such as font
Page 723 and 724:
Figure 11-13 End result of multiboo
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Figure 11-14 Remote network install
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USB packaging. Ah, but there is a d
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Figure 11-17 Windows regional setti
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Figure 11-19 The Windows product ke
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Figure 11-21 The Windows EULAOn the
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Figure 11-23 The partitioning scree
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administrator. The computer needs t
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Figure 11-26 Choosing privacy setti
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The phrase “network installation
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Figure 11-29 Network bootDepending
Page 745 and 746:
Every Windows installation depends
Page 747 and 748:
Post-Installation TasksYou might th
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Migrating and Retiring SystemsSeaso
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even if it’s simply e-mail messag
Page 753 and 754:
Figure 11-31 Piriform’s CCleaner
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Beyond A+Privacy Concerns with Wind
Page 757 and 758:
C. RAMD. Large monitor5. What tool
Page 759 and 760:
Windows Under the HoodCHAPTER 12In
Page 761 and 762:
Try opening one of these root keys
Page 763 and 764:
Talkin’ RegistryWhen describing a
Page 765 and 766:
HKLM\SOFTWARE\Microsoft\Windows\Cur
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Current Windows versions support bo
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are called applications.There’s a
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the naughty application and click E
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PID (Process Identifier) checkbox t
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Figure 12-9 Processes from all user
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to find out what it’s doing on yo
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Imagine you need to render out some
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Figure 12-13 Services associated wi
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services directly (see Figure 12-15
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Figure 12-17 Service Properties dia
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Figure 12-18 Task Manager Performan
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ever need—and as a tech you need
Page 791 and 792:
Figure 12-21 Processes tab in detai
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usage trend. Note how Firefox’s p
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Figure 12-24 Performance tab in Win
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Figure 12-26 Startup tab in Windows
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a cosmetic update; the same columns
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The Task Manager should always be t
Page 803 and 804:
Figure 12-31 Initial Performance Mo
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Performance Monitor shows data in g
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find out more about the Component S
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you to create and manage entries ca
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A. BIOS does not use bootmgr.B. UEF
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CHAPTER 13Users, Groups, and Permis
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NOTE This chapter uses Windows as a
Page 817 and 818:
“Do you use your pet’s name?”
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Figure 13-2 Password hint on the Wi
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• Users Members of the Users grou
Page 823 and 824:
Figure 13-4 Creating a new user acc
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Figure 13-6 Adding JimT to the Admi
Page 827 and 828:
Managing Users in Windows 7Windows
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Figure 13-10 Settings charmFigure 1
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Figure 13-13 Manage other accountsO
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Figure 13-15 Shiny new accountManag
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Figure 13-17 Family & other peopleT
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initial release—your mileage may
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Figure 13-19 The Security tab enabl
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• If an administrator wants to ac
Page 844 and 845:
Figure 13-22 Inherited permissionsI
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or moved, and whether the data is c
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permissions. Let’s take a short j
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To change the group, use the follow
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libraries for Documents, Music, Pic
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groups NTFS permissions to specific
Page 856 and 857:
Wizard, discussed shortly. It’s a
Page 858 and 859:
Figure 13-31 Network access dialog
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Administrative SharesA close look a
Page 862 and 863:
Figure 13-33 Click the Advanced but
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your password, you’re locked out
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Go applies encryption and password
Page 868 and 869:
Look at the Maximum password age se
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Figure 13-39 UAC equivalent on a Ma
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Figure 13-41 Power Users group—al
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Figure 13-42 Prompting for an admin
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shown in Figure 13-46. When you sel
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Figure 13-47 Darkened UACEXAM TIP T
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C. User Account CommandD. User Acco
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user account based on a global Micr
Page 884 and 885:
users do well, and it’s our job a
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Figure 14-1 Windows 7 with Service
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Figure 14-2 Windows Update in Windo
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Figure 14-4 Windows Update section
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You can review installed updates by
Page 894 and 895:
Here is a rundown of key points you
Page 896 and 897:
Figure 14-10 Software Updater in Ub
Page 898 and 899:
Figure 14-11 Accessing remote compu
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drives (HDDs) and solid-state drive
Page 902 and 903:
Figure 14-14 Optimize Drives in Win
Page 904 and 905:
Figure 14-15 Ubuntu installation op
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Figure 14-17 Optimize Drives schedu
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Figure 14-18 File History schedulin
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Figure 14-19 Windows 7 System Confi
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Figure 14-20 Startup tab in Task Ma
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Startup Applications Preferences in
Page 916 and 917:
Figure 14-23 System InformationNote
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Manager in the list; click the Add
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Optimizing Operating SystemsMainten
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Figure 14-28 Autorun.inf file open
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Figure 14-30 Accepting software ter
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Figure 14-32 Affinity Designer offe
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Removing SoftwareEach installed pro
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You may then see a message telling
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installed Notepad, network support,
Page 934 and 935:
Figure 14-39 App Store showing an a
Page 936:
to make your own adjustments.
Page 939 and 940:
Figure 14-42 Advanced tab of Perfor
Page 941 and 942:
Figure 14-43 Backup options in Wind
Page 943 and 944:
Figure 14-45 Backup showing a list
Page 945 and 946:
Figure 14-47 Backup in progress . .
Page 947 and 948:
Time Machine in macOSmacOS provides
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dialog box shown in Figure 14-51. N
Page 951 and 952:
including every time you install ne
Page 953 and 954:
NOTE Windows 7 Restore Settings opt
Page 955 and 956:
B. Run the Driver Rollback tool to
Page 957 and 958:
CHAPTER 15Working with the Command-
Page 959 and 960:
You type a command and press enter
Page 961 and 962:
Figure 15-1 Starting the command pr
Page 963 and 964:
will always run with administrative
Page 965 and 966:
password, the prompt will change (u
Page 967 and 968:
thisfile.txtThe “8.3” format do
Page 969 and 970:
NOTE Every operating system has som
Page 971 and 972:
NOTE It helps to visualize a direct
Page 973 and 974:
Mastering Fundamental CommandsIt’
Page 975 and 976:
The default prompts in Linux don’
Page 977 and 978:
Figure 15-8 Typing dir /? in Window
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Errors Are Good!Consider errors in
Page 981 and 982:
EXAM TIP Look for the .. option or
Page 983 and 984:
practice to create the directory:C:
Page 985 and 986:
works in Windows.So, with that in m
Page 987 and 988:
the mkdir, cd, and rm commands.Runn
Page 989 and 990:
macOS and Linux executable programs
Page 991 and 992:
NOTE Downloading and running comman
Page 993 and 994:
work with all command-line commands
Page 995 and 996:
SIM Check out the four “Wildcard
Page 997 and 998:
Being able to copy and move files i
Page 999 and 1000:
Pruning and Grafting Folder TreesTh
Page 1001 and 1002:
EXAM TIP Know xcopy and robocopy fo
Page 1003 and 1004:
switches.The format command, you ma
Page 1005 and 1006:
sfcThe Windows sfc (System File Che
Page 1007 and 1008:
number of ways to access previously
Page 1009 and 1010:
Just in case you want to know what
Page 1011 and 1012:
mike@server:~$ sudo ifconfig wlan0
Page 1013 and 1014:
• RSS: Total physical memory in k
Page 1015 and 1016:
TIP For some reason, the Red Hat Pa
Page 1017 and 1018:
Figure 15-17 vi openThe vi editor u
Page 1019 and 1020:
Granted, it’s important to know h
Page 1021 and 1022:
shutdown <options> <time>By far the
Page 1023 and 1024:
Scripting is a kind of programming;
Page 1025 and 1026:
A way to think of a string is as a
Page 1027 and 1028:
2. The if statement checks to see i
Page 1029 and 1030:
Environment VariablesAny system you
Page 1031 and 1032:
1. Which of the following is an ill
Page 1033 and 1034:
Answers1. C. Any of these character
Page 1035 and 1036:
used with macOS, hardware flaws are
Page 1037 and 1038:
Figure 16-2 Scary errorFailure to B
Page 1039 and 1040:
NOTE Although here I discuss only h
Page 1041 and 1042:
Figure 16-4 Making a recovery drive
Page 1043 and 1044:
The look and feel of Windows RE dif
Page 1045 and 1046:
Figure 16-8 WinRE Troubleshoot scre
Page 1047 and 1048:
EXAM TIP Make sure you know how to
Page 1049 and 1050:
This opens a text file called srttr
Page 1051 and 1052:
System Restore System Restore does
Page 1053 and 1054:
Figure 16-14 Selecting a system ima
Page 1055 and 1056:
Figure 16-16 Confirming your settin
Page 1057 and 1058:
EXAM TIP You can access the Windows
Page 1059 and 1060:
This tool includes two other option
Page 1061 and 1062:
With that attitude in mind, let’s
Page 1063 and 1064:
winload.exe.The bcdedit command sup
Page 1065 and 1066:
You can list volumes (or partitions
Page 1067 and 1068:
Failure to Boot: LinuxLinux offers
Page 1069 and 1070:
Figure 16-24 shows a Windows Stop e
Page 1071 and 1072:
into the same discussion as BSoDs a
Page 1073 and 1074:
Figure 16-26 Safe ModeOnce in Safe
Page 1075 and 1076:
after you log on. From here you can
Page 1077 and 1078:
Boot Options menu stops the compute
Page 1079 and 1080:
Click the ProfileList arrow on the
Page 1081 and 1082:
created account and access all the
Page 1083 and 1084:
Figure 16-32 Warning Events openWin
Page 1085 and 1086:
Figure 16-34 Log Properties dialog
Page 1087 and 1088:
ServicesWindows loads many services
Page 1089 and 1090:
see all processes and services curr
Page 1091 and 1092:
offers four categories of help—Pr
Page 1093 and 1094:
Figure 16-40 Windows Update trouble
Page 1095 and 1096:
Figure 16-42 Change Security and Ma
Page 1097 and 1098:
offline for a while, the BIOS time
Page 1099 and 1100:
application should try to install i
Page 1101 and 1102:
(right-click the executable file an
Page 1103 and 1104:
programs assume the screen to be at
Page 1105 and 1106:
Figure 16-48 Searching for updates
Page 1107 and 1108:
driver problems, not just applicati
Page 1109 and 1110:
NOTE For some unknown reason, Micro
Page 1111 and 1112:
recovery of corrupted data files ca
Page 1113 and 1114:
9. Which of the following commands
Page 1115 and 1116:
CHAPTER 17Display TechnologiesIn th
Page 1117 and 1118:
LCD MonitorsAlmost every computing
Page 1119 and 1120:
of glass. When you place this liqui
Page 1121 and 1122:
If you expose the liquid crystal to
Page 1123 and 1124:
Figure 17-8 Single character for st
Page 1125 and 1126:
technologies could provide.Figure 1
Page 1127 and 1128:
NOTE Samsung offers a proprietary v
Page 1129 and 1130:
• Brightness• Viewing angle•
Page 1131 and 1132:
monitor looks kind of grainy, becau
Page 1133 and 1134:
game.Refresh Rate The refresh rate
Page 1135 and 1136:
project) it onto a screen or some o
Page 1137 and 1138:
The proprietary Digital Light Proce
Page 1139 and 1140:
cost more than metal halide ones, b
Page 1141 and 1142:
• VGA• DVI• HDMI• DisplayPo
Page 1143 and 1144:
Figure 17-24 HDMI port on a monitor
Page 1145 and 1146:
Figure 17-27 HDBaseT port on a proj
Page 1147 and 1148:
AdjustmentsMost adjustments to the
Page 1149 and 1150:
Figure 17-32 Dual-monitor stand tha
Page 1151 and 1152:
Figure 17-34 Typical video cardMoth
Page 1153 and 1154:
Figure 17-36 PCIe video card connec
Page 1155 and 1156:
Your choice of graphics processor i
Page 1157 and 1158:
The majority of video cards, especi
Page 1159 and 1160:
Figure 17-39 Video card connectors:
Page 1161 and 1162:
Many high-end video cards come as d
Page 1163 and 1164:
can drag and drop them to change th
Page 1165 and 1166:
Figure 17-44 Color Management apple
Page 1167 and 1168:
Figure 17-46 Monitor in portrait mo
Page 1169 and 1170:
Figure 17-48 Advanced display setti
Page 1171 and 1172:
Figure 17-50 Display applet in Wind
Page 1173 and 1174:
enables you to synchronize multiple
Page 1175 and 1176:
Figure 17-54 System Preferences in
Page 1177 and 1178:
Figure 17-56 Changing the wallpaper
Page 1179 and 1180:
course.Figure 17-58 Windows looking
Page 1181 and 1182:
Figure 17-59 Wolfenstein 3DWolfenst
Page 1183 and 1184:
monsters trying to spray you with e
Page 1185 and 1186:
the game, provide some type of inte
Page 1187 and 1188:
DirectX 12.Figure 17-64 The DirectX
Page 1189 and 1190:
there first before you try deleting
Page 1191 and 1192:
Excessive heat inside the case, eve
Page 1193 and 1194:
burn-in, so it’s a good idea to p
Page 1195 and 1196:
NOTE Video cards can handle multipl
Page 1197 and 1198:
Additional Display TopicsDisplay te
Page 1199 and 1200:
the vibrant sunlit clouds and deep
Page 1201 and 1202:
gaming. eGPUs enable you to edit 4K
Page 1203 and 1204:
D. OpenGL8. Which two kinds of back
Page 1205 and 1206:
CHAPTER 18Essentials of NetworkingI
Page 1207 and 1208:
to provide access to Web sites. Two
Page 1209 and 1210:
Figure 18-4 Sharing a printer in Wi
Page 1211 and 1212:
A NIC also breaks files into smalle
Page 1213 and 1214:
1011 = B1100 = C1101 = D1110 = E111
Page 1215 and 1216:
Here’s a method in Windows. At th
Page 1217 and 1218:
Figure 18-8 Ethernet star busThe ce
Page 1219 and 1220:
Cheap and centralized, Ethernet’s
Page 1221 and 1222:
company, for you youngsters) years
Page 1223 and 1224:
Like all wires, the wires in UTP ar
Page 1225 and 1226:
Light can be sent down a fiber opti
Page 1227 and 1228:
Coax cables are rated using an RG n
Page 1229 and 1230:
two most common interpretations are
Page 1231 and 1232:
A bridge is a device that connects
Page 1233 and 1234:
Third, this type of setup limits yo
Page 1235 and 1236:
most networks, this cable is a Cat
Page 1237 and 1238:
Figure 18-22 A short equipment rack
Page 1239 and 1240:
capabilities. There are even rack-m
Page 1241 and 1242:
Figure 18-27 Punching down a 110 bl
Page 1243 and 1244:
cabling. Most manufacturers proudly
Page 1245 and 1246:
Figure 18-31 Crimper with built-in
Page 1247 and 1248:
Figure 18-33 Inserting the individu
Page 1249 and 1250:
Figure 18-35 Properly crimped cable
Page 1251 and 1252:
Figure 18-37 Typical testerThe Work
Page 1253 and 1254:
Figure 18-39 Punching down a modula
Page 1255 and 1256:
1. How many bits are in a MAC addre
Page 1257 and 1258:
Answers1. C. MAC addresses are 48-b
Page 1259 and 1260:
NOTE This chapter only covers local
Page 1261 and 1262:
. . .11111111 = 255Subnet MaskPart
Page 1263 and 1264:
values (192.168.4), those make up t
Page 1265 and 1266:
Figure 19-3 Default gatewayDomain N
Page 1267 and 1268:
was added to the original seven to
Page 1269 and 1270:
Control Protocol (DHCP). If you hav
Page 1271 and 1272:
good reason to use UDP: it’s smok
Page 1273 and 1274:
Click Change adapter settings on th
Page 1275 and 1276:
ipconfig/ifconfig Windows offers th
Page 1277 and 1278:
gateway, DNS servers, and WINS serv
Page 1279 and 1280:
than others? Part of the blame coul
Page 1281 and 1282:
subnet mask is entered automaticall
Page 1283 and 1284:
IPv6 uses a colon as a separator, i
Page 1285 and 1286:
NOTE The unspecified address (all z
Page 1287 and 1288:
from their routers.Global Unicast A
Page 1289 and 1290:
IPv6 and also has a global address,
Page 1291 and 1292:
device is giving you problems (Figu
Page 1293 and 1294:
Figure 19-20 Multispeed lightsA pro
Page 1295 and 1296:
Figure 19-21 Wake-on-LAN settings o
Page 1297 and 1298:
NOTE Your BIOS might also have sett
Page 1299 and 1300:
single physical network into two or
Page 1301 and 1302:
By default, all computers on the ne
Page 1303 and 1304:
NOTE Linux distros require a lot mo
Page 1305 and 1306:
watch a typical folder share take p
Page 1307 and 1308:
Figure 19-28 Sharing tab for Music
Page 1309 and 1310:
Figure 19-30 Permissions for the ab
Page 1311 and 1312:
Figure 19-31 Computers A and BA per
Page 1313 and 1314:
Figure 19-33 WorkgroupFigure 19-34
Page 1315 and 1316:
Figure 19-35 Windows ServerEXAM TIP
Page 1317 and 1318:
Figure 19-37 Active Directory netwo
Page 1319 and 1320:
Figure 19-39 Joining a domainRemovi
Page 1321 and 1322:
dialog box. Figure 19-42 show the d
Page 1323 and 1324:
Figure 19-43 Reset Password dialog
Page 1325 and 1326:
though, because it’s a new home f
Page 1327 and 1328:
EXAM TIP HomeGroup works in Windows
Page 1329 and 1330:
Figure 19-47 Create a Homegroup dia
Page 1331 and 1332:
Figure 19-49 Homegroup configuredLe
Page 1333 and 1334:
libraries to see the shared folders
Page 1335 and 1336:
Sharing PrintersSharing printers in
Page 1337 and 1338:
or “intermittent connectivity.”
Page 1339 and 1340:
Look for errors that point to physi
Page 1341 and 1342:
The vast majority of network discon
Page 1343 and 1344:
Figure 19-57 Fox and HoundEXAMEXAM
Page 1345 and 1346:
password.• The folder or printer
Page 1347 and 1348:
You can also query a remote machine
Page 1349 and 1350:
3. Which of the following is the co
Page 1351 and 1352:
cached names.6. C. The lights shoul
Page 1353 and 1354:
Association (IrDA) protocol. Finall
Page 1355 and 1356:
Figure 20-3 External USB wireless N
Page 1357 and 1358:
mobile devices like smartphones and
Page 1359 and 1360:
Figure 20-6 Bluetooth keyboard and
Page 1361 and 1362:
Figure 20-7 Wireless configuration
Page 1363 and 1364:
Infrastructure ModeWireless network
Page 1365 and 1366:
and data encryption. But before any
Page 1367 and 1368:
creating a type of “accepted user
Page 1369 and 1370:
AES wireless encryption types.WPA3
Page 1371 and 1372:
network signals very effectively. O
Page 1373 and 1374:
networks. Each of these versions of
Page 1375 and 1376:
Many 802.11n WAPs employ transmit b
Page 1377 and 1378:
Try This! 802.11ac Products802.11ac
Page 1379 and 1380:
Bluetooth) is designed to create sm
Page 1381 and 1382:
network-aware smartphone, tablet, o
Page 1383 and 1384:
using DHCP) and ensuring that the F
Page 1385 and 1386:
Figure 20-14 Linksys WAP setup scre
Page 1387 and 1388:
Figure 20-16 Basic properties panel
Page 1389 and 1390:
Figure 20-17 Encryption screen on c
Page 1391 and 1392:
EXAM TIP TACACS dates back to 1984,
Page 1393 and 1394:
Figure 20-20 Linksys router sportin
Page 1395 and 1396:
Figure 20-22 WAP with replacement a
Page 1397 and 1398:
use a Wi-Fi or wireless locator. Th
Page 1399 and 1400:
while others must be set to pairing
Page 1401 and 1402:
manufacturers developed add-on cell
Page 1403 and 1404:
hardware, software, connectivity, o
Page 1405 and 1406:
work. Wireless clients use a multi-
Page 1407 and 1408:
give an error message indicating
Page 1409 and 1410:
B. 4 MbpsC. 11 MbpsD. 54 Mbps8. Blu
Page 1411 and 1412:
CHAPTER 21The InternetIn this chapt
Page 1413 and 1414:
Commonwealth University in Richmond
Page 1415 and 1416:
on the Internet.Because you spent a
Page 1417 and 1418:
from Chapter 19, the router to whic
Page 1419 and 1420:
Figure 21-6 Analog signals used by
Page 1421 and 1422:
Figure 21-8 An internal modemContem
Page 1423 and 1424:
Select Connect to the Internet and
Page 1425 and 1426:
connects much faster than modems, e
Page 1427 and 1428:
Figure 21-13 DSL connectionNOTE The
Page 1429 and 1430:
verse), which generally offers down
Page 1431 and 1432:
house. To support higher bandwidths
Page 1433 and 1434:
Figure 21-17 Real-world LTE speed t
Page 1435 and 1436:
Figure 21-18 TetheringThe fifth-gen
Page 1437 and 1438:
2. Connect a network of computers t
Page 1439 and 1440:
Figure 21-20 Router asking for user
Page 1441 and 1442:
connect to other UPnP devices. This
Page 1443 and 1444:
NOTE While these methods are genera
Page 1445 and 1446:
the objectives but I’ve added for
Page 1447 and 1448:
and VoIP [SIP]). Table 21-2 does th
Page 1449 and 1450:
Figure 21-26 Mozilla Firefox showin
Page 1451 and 1452:
Figure 21-27 Internet Options apple
Page 1453 and 1454:
Figure 21-29 The Advanced tab in In
Page 1455 and 1456:
quickly talk about uses for proxy s
Page 1457 and 1458:
Figure 21-30 Mozilla Firefox Option
Page 1459 and 1460:
To set up and access e-mail, you ha
Page 1461 and 1462:
Figure 21-32 Web-based e-mailEXAM T
Page 1463 and 1464:
Figure 21-34 Accessing an FTP site
Page 1465 and 1466:
preventing any eavesdroppers from r
Page 1467 and 1468:
Figure 21-37 Arris VoIP telephony m
Page 1469 and 1470:
Figure 21-38 TightVNC in actionNOTE
Page 1471 and 1472:
NOTE The name of the Remote Desktop
Page 1473 and 1474:
EXAM TIP Windows is also capable of
Page 1475 and 1476:
Figure 21-42 Typical tunnelNOTE An
Page 1477 and 1478:
Figure 21-44 RRAS in actionOn the W
Page 1479 and 1480:
Your client takes on an IP address
Page 1481 and 1482:
Before, the options for obtaining d
Page 1483 and 1484:
dialects is Common Internet File Sy
Page 1485 and 1486:
Figure 21-49 Controlling my Honeywe
Page 1487 and 1488:
The big four (Amazon, Apple, Google
Page 1489 and 1490:
Internet troubleshooting, and we’
Page 1491 and 1492:
Figure 21-53 Diagnosing a network p
Page 1493 and 1494:
Figure 21-54 Router’s WAN IP addr
Page 1495 and 1496:
netstat, which shows all the connec
Page 1497 and 1498:
with another human can be challengi
Page 1499 and 1500:
A. 22B. 110C. 42D. 2563. What advan
Page 1501 and 1502:
5. A, B. You can use either Interne
Page 1503 and 1504:
So now Mario has two dedicated comp
Page 1505 and 1506:
These management advantages turn ou
Page 1507 and 1508:
systems manifest. Figure 22-3 shows
Page 1509 and 1510:
Figure 22-5 Hypervisor on a generic
Page 1511 and 1512:
Another very popular hypervisor is
Page 1513 and 1514:
portion of its power to individual
Page 1515 and 1516:
Every Intel-based CPU since the lat
Page 1517 and 1518:
Figure 22-12 Single VM file taking
Page 1519 and 1520:
Bridged Networking When most people
Page 1521 and 1522:
network. I have a number of VMs tha
Page 1523 and 1524:
Figure 22-16 Oracle VM VirtualBox M
Page 1525 and 1526:
Figure 22-18 Selecting the amount o
Page 1527 and 1528:
and as the figure shows, I’ve poi
Page 1529 and 1530:
handle every input and output that
Page 1531 and 1532:
hypervisor that’s powerful enough
Page 1533 and 1534:
single system and provide storage s
Page 1535 and 1536:
resources, he increases his options
Page 1537 and 1538:
Figure 22-27 Amazon Web Services Ma
Page 1539 and 1540:
Figure 22-29 Creating an instance o
Page 1541 and 1542:
Platform as a ServiceWeb applicatio
Page 1543 and 1544:
charge for access. Other Web applic
Page 1545 and 1546:
Private CloudIf a business wants so
Page 1547 and 1548:
Why We CloudCloud computing is the
Page 1549 and 1550:
With Office 365, Microsoft changed
Page 1551 and 1552:
A. CheckpointB. SaveC. SnapshotD. Z
Page 1553 and 1554:
to be confused with a true backup.4
Page 1555 and 1556:
Portable Computing DevicesAll porta
Page 1557 and 1558:
Figure 23-2 Older full-size laptop
Page 1559 and 1560:
Figure 23-4 Microsoft Surface Pro 6
Page 1561 and 1562:
nearest the user, or behind the key
Page 1563 and 1564:
EXAM TIP In the past it was common
Page 1565 and 1566:
in bright light. Using such a lapto
Page 1567 and 1568:
Figure 23-8 Standard audio portsYou
Page 1569 and 1570:
choices!You can control what the ex
Page 1571 and 1572:
802.11, Bluetooth, and wired Ethern
Page 1573 and 1574:
Figure 23-14 Ethernet port on lapto
Page 1575 and 1576:
Table 23-1 ExpressCard SpeedsStorag
Page 1577 and 1578:
HDMI, USB Type-A (2, 3, 3.1), RJ-45
Page 1579 and 1580:
polymer shape rather than an organi
Page 1581 and 1582:
NOTE Low-power mode names can diffe
Page 1583 and 1584:
Figure 23-20 CMOS with ACPI setup o
Page 1585 and 1586:
Figure 23-23 Windows 10 hibernation
Page 1587 and 1588:
files on my laptop before I leave,
Page 1589 and 1590:
appropriate screen cleaner (not a g
Page 1591 and 1592:
sure to remove any optical disks fr
Page 1593 and 1594:
Figure 23-28 Cable lockAn alternati
Page 1595 and 1596:
Figure 23-29 Bare-minimum laptop re
Page 1597 and 1598:
Once you’ve found the appropriate
Page 1599 and 1600:
is to add more RAM. Luckily, most l
Page 1601 and 1602:
Figure 23-33 Removing a RAM panelFi
Page 1603 and 1604:
than 8 TB of data! Unfortunately, m
Page 1605 and 1606:
underside of the computer—and rel
Page 1607 and 1608:
but replacing them generally falls
Page 1609 and 1610:
compatible with the portable. Just
Page 1611 and 1612:
touchscreen display offers even mor
Page 1613 and 1614:
Once you have the portable stripped
Page 1615 and 1616:
• A swollen battery will probably
Page 1617 and 1618:
CCFL technology.) The clue here is
Page 1619 and 1620:
location services are enabled both
Page 1621 and 1622:
device, it may be tempting to hold
Page 1623 and 1624:
A. CRTB. LCDC. OLEDD. Plasma7. Stev
Page 1625 and 1626:
CHAPTER 24Understanding Mobile Devi
Page 1627 and 1628:
are best understood as devices purp
Page 1629 and 1630:
smartphones do so much more than si
Page 1631 and 1632:
components they are named after, we
Page 1633 and 1634:
NOTE Wearable devices aren’t desi
Page 1635 and 1636:
Figure 24-8 Typical cam chat setupA
Page 1637 and 1638:
Figure 24-10 IKEA AR app on the loo
Page 1639 and 1640:
(see Figure 24-11).Figure 24-11 Aut
Page 1641 and 1642:
Figure 24-12 Waze in actionAnother
Page 1643 and 1644:
bicycle. You can also buy hand-held
Page 1645 and 1646:
room for abuse of power.1002Mobile
Page 1647 and 1648:
company philosophy and goals. A com
Page 1649 and 1650:
Figure 24-15 iOS 12iOS apps are alm
Page 1651 and 1652:
NOTE Android-based devices may be m
Page 1653 and 1654:
Figure 24-17 Option to enable Wi-Fi
Page 1655 and 1656:
Figure 24-18 Xcode running an app w
Page 1657 and 1658:
Additionally, smartphone manufactur
Page 1659 and 1660:
PRL, PRI, and Baseband Updates As m
Page 1661 and 1662:
block that device from accessing th
Page 1663 and 1664:
EXAM TIP Remember the differences b
Page 1665 and 1666:
portal.Configuring a Mobile DeviceM
Page 1667 and 1668:
even though they dominate the U.S.
Page 1669 and 1670:
Android Expansion OptionsDevices th
Page 1671 and 1672:
Figure 24-30 shows a diminutive App
Page 1673 and 1674:
Figure 24-31 App StoreTo add an app
Page 1675 and 1676:
steps (see Figure 24-33) and a vali
Page 1677 and 1678:
Network ConnectivityMobile devices
Page 1679 and 1680:
(or Networks) option to see availab
Page 1681 and 1682:
your device can do more than one ty
Page 1683 and 1684:
Figure 24-37 Default e-mail types o
Page 1685 and 1686:
Figure 24-39 Setting up a secure IM
Page 1687 and 1688:
SynchronizationFrom the first day m
Page 1689 and 1690:
these functions include the ability
Page 1691 and 1692:
a device won’t sync even after ge
Page 1693 and 1694:
Lightning ConnectorWith the iPhone
Page 1695 and 1696:
EXAM TIP You will likely see micro-
Page 1697 and 1698:
EXAM TIP Most mobile devices have B
Page 1699 and 1700:
InfraredNow largely replaced by oth
Page 1701 and 1702:
range of features. Some of the most
Page 1703 and 1704:
B. SDKC. Virtual assistantD. Digiti
Page 1705 and 1706:
B. User name and passwordC. User na
Page 1707 and 1708:
CHAPTER 25Care and Feeding of Mobil
Page 1709 and 1710:
NOTE Most of these tools either are
Page 1711 and 1712:
Figure 25-1 Force stop in AndroidSo
Page 1713 and 1714:
Take extra care not to confuse a ha
Page 1715 and 1716:
Figure 25-2 Cleaning a smartphonePe
Page 1717 and 1718:
TIP For a good dose of tech-oriente
Page 1719 and 1720:
well they explain the device’s te
Page 1721 and 1722:
Know how long a given user’s devi
Page 1723 and 1724:
on when you receive a notification.
Page 1725 and 1726:
chargers or batteries, especially i
Page 1727 and 1728:
you to either remove an offending a
Page 1729 and 1730:
NOTE In addition to signal issues,
Page 1731 and 1732:
even when you know you’re blocks
Page 1733 and 1734:
System LockoutSystem lockout occurs
Page 1735 and 1736:
Companies at the other end of the s
Page 1737 and 1738:
You should also develop profiles th
Page 1739 and 1740:
Combating MalwareMalware on mobile
Page 1741 and 1742:
Figure 25-10 Passcode option in Set
Page 1743 and 1744:
Figure 25-11 Locating a device in i
Page 1745 and 1746:
devices. Log in and follow the same
Page 1747 and 1748:
multifactor authentication. Only on
Page 1749 and 1750:
authentication methods. Access to a
Page 1751 and 1752:
Figure 25-15 An Android firewall ap
Page 1753 and 1754:
device manager), or similar softwar
Page 1755 and 1756:
target.Figure 25-17 My Android-base
Page 1757 and 1758:
Figure 25-18 Combined anti-malware
Page 1759 and 1760:
mobile device problems.Unexpected R
Page 1761 and 1762:
Earlier, we looked at dropped and w
Page 1763 and 1764:
is reported missing. Once you know
Page 1765 and 1766:
Figure 25-19 Four Android apps prom
Page 1767 and 1768:
Figure 25-20 Apps with permission t
Page 1769 and 1770:
D. Factor authentication6. Jailbrea
Page 1771 and 1772:
CHAPTER 26Printers and Multifunctio
Page 1773 and 1774:
and scanner of some sort—with the
Page 1775 and 1776:
Figure 26-3 Inside a dot-matrix pri
Page 1777 and 1778:
boil the ink; this creates a tiny a
Page 1779 and 1780:
the color flow.The two key features
Page 1781 and 1782:
Figure 26-8 The dye-sublimation pri
Page 1783 and 1784:
a color laser printer, but most las
Page 1785 and 1786:
Figure 26-11 Laser printer’s tone
Page 1787 and 1788:
charged drum. To prevent the paper
Page 1789 and 1790:
Flashing is a lot like upgrading th
Page 1791 and 1792:
the stylized replacement game piece
Page 1793 and 1794:
EXAM TIP The CompTIA A+ 1001 exam o
Page 1795 and 1796:
HP Printer Command Language (PCL) H
Page 1797 and 1798:
Figure 26-16 Scanner open with phot
Page 1799 and 1800:
Figure 26-18 Acquiring an image in
Page 1801 and 1802:
downside: images scanned at 48 bits
Page 1803 and 1804:
or you’ll get a light that’s st
Page 1805 and 1806:
the printer to a single computer an
Page 1807 and 1808:
ProcessingWhen you click the Print
Page 1809 and 1810:
Figure 26-24 RET fills in gaps with
Page 1811 and 1812:
Figure 26-26 Writing the image and
Page 1813 and 1814:
CleaningThe printing process ends w
Page 1815 and 1816:
by the sheer number of options to c
Page 1817 and 1818:
Figure 26-30 Printers & scanners in
Page 1819 and 1820:
to finish the installation. The Win
Page 1821 and 1822:
NOTE Remember printer sharing from
Page 1823 and 1824:
Beth’s computer and Carol’s com
Page 1825 and 1826:
that with these printer drivers, I
Page 1827 and 1828:
laying out booklets.• The orienta
Page 1829 and 1830:
calibration, but the 1001 objective
Page 1831 and 1832:
restricting the features each user
Page 1833 and 1834:
If the printer does have connectivi
Page 1835 and 1836:
administrator privileges to continu
Page 1837 and 1838:
Misaligned or garbage printouts (Co
Page 1839 and 1840:
EXAM TIP MSDSs contain important in
Page 1841 and 1842:
Compared to other printer styles, t
Page 1843 and 1844:
routine. Some printers will even do
Page 1845 and 1846:
those details, you need to review s
Page 1847 and 1848:
roller (the Teflon-coated one with
Page 1849 and 1850:
“developer starvation.” If you
Page 1851 and 1852:
easy to replace.Paper Not Feeding I
Page 1853 and 1854:
D. Electroconductive plates2. With
Page 1855 and 1856:
proper process.4. B. Printwires phy
Page 1857 and 1858:
malware.1002Analyzing ThreatsThreat
Page 1859 and 1860:
NOTE Social engineering attacks are
Page 1861 and 1862:
Data DestructionOften an extension
Page 1863 and 1864:
physically!NOTE Physical security f
Page 1865 and 1866:
computers reside, you need to monit
Page 1867 and 1868:
room temperature, which is somewher
Page 1869 and 1870:
arranging and layering many pieces
Page 1871 and 1872:
logon screen on resume—can help a
Page 1873 and 1874:
EXAM TIP The 1002 exam will quiz yo
Page 1875 and 1876:
as shown in Figure 27-8.Figure 27-8
Page 1877 and 1878:
Figure 27-11 Microsoft keyboard wit
Page 1879 and 1880:
Figure 27-13 Unlocking an iPhone vi
Page 1881 and 1882:
Watch out for default user accounts
Page 1883 and 1884:
Internet, redirect home folders, ru
Page 1885 and 1886:
system left from a migrated user, f
Page 1887 and 1888:
personal license, or multiple users
Page 1889 and 1890:
auditing within Windows so that the
Page 1891 and 1892:
Incident Reporting Once you’ve ga
Page 1893 and 1894:
custody.Network SecurityNetworks ar
Page 1895 and 1896:
Knowing what form the malware takes
Page 1897 and 1898:
EXAM TIP Know the various types of
Page 1899 and 1900:
applies to other attacks. You can b
Page 1901 and 1902:
threats that greet modern Web users
Page 1903 and 1904:
Figure 27-20 Windows 10 Virus & thr
Page 1905 and 1906:
mail from specific people—good to
Page 1907 and 1908:
EXAM TIP The 1002 exam objectives l
Page 1909 and 1910:
possible, add an appliance that run
Page 1911 and 1912:
SIM Check out the excellent Challen
Page 1913 and 1914:
Figure 27-24 A Windows 10 virus shi
Page 1915 and 1916:
back up safely into service. The 10
Page 1917 and 1918:
many online anti-malware sites you
Page 1919 and 1920:
they should not install and use on
Page 1921 and 1922:
Figure 27-27 Default Web interfaceA
Page 1923 and 1924:
Figure 27-29 Port forwardingPort fo
Page 1925 and 1926:
Figure 27-31 DMZ set up on a SOHO r
Page 1927 and 1928:
Windows Defender Firewall on or off
Page 1929 and 1930:
firewall settings for each network
Page 1931 and 1932:
concept and expands it to include c
Page 1933 and 1934:
just a single user sitting in front
Page 1935 and 1936:
Figure 27-37 A secure Web siteTIP M
Page 1937 and 1938:
Figure 27-38 Trusted authoritiesIf
Page 1939 and 1940:
secure WPA2, and configure clients
Page 1941 and 1942:
D. User Settings8. John dressed up
Page 1943 and 1944:
CHAPTER 28Operational ProceduresIn
Page 1945 and 1946:
Figure 28-1 Typical network topolog
Page 1947 and 1948:
Company PoliciesOrganizations adopt
Page 1949 and 1950:
on the other hand, uses a battery o
Page 1951 and 1952:
you’ll almost certainly need to d
Page 1953 and 1954:
systems, lists of new users created
Page 1955 and 1956:
them.Another big question is how mu
Page 1957 and 1958:
party backup software and off-site
Page 1959 and 1960:
Figure 28-7 Backing up the accounti
Page 1961 and 1962:
Figure 28-8 Macrium Reflect - Free
Page 1963 and 1964:
Backup tools worth your time and mo
Page 1965 and 1966:
Chapter ReviewQuestions1. Henry get
Page 1967 and 1968:
D. Risk analysis8. Which device pro
Page 1969:
Mapping to the CompTIA A+Objectives
Page 2022 and 2023:
APPENDIX BAbout the Online ContentT
Page 2024 and 2025:
Duration of License Access to your
Page 2026 and 2027:
review the questions with answers a
Page 2028 and 2029:
GLOSSARY10BaseT Ethernet cabling sy
Page 2030 and 2031:
with a theoretical maximum throughp
Page 2032 and 2033:
Administrative Tools Group of Contr
Page 2034 and 2035:
anti-aliasing In computer imaging,
Page 2036 and 2037:
augmented reality (AR) Using some f
Page 2038 and 2039:
and even the network itself. This p
Page 2040 and 2041:
baud One analog cycle on a telephon
Page 2042 and 2043:
for how to actually load (bootstrap
Page 2044 and 2045:
defects.bus Series of wires connect
Page 2046 and 2047:
cd Command-line utility for changin
Page 2048 and 2049:
change management A well-defined pr
Page 2050 and 2051:
client-side virtualization Using a
Page 2052 and 2053:
an 8-bit alpha channel for transpar
Page 2054 and 2055:
Management.computing process Four p
Page 2056 and 2057:
cron Tool used by many Linux distri
Page 2058 and 2059:
DDR2 SDRAM.DDR3L Low-voltage versio
Page 2060 and 2061:
dictionary attack Type of brute for
Page 2062 and 2063:
available system memory. When syste
Page 2064 and 2065:
account database and a common secur
Page 2066 and 2067:
dumpster diving To go through someo
Page 2068 and 2069:
(ESD), lightning, nuclear detonatio
Page 2070 and 2071:
drives.escalate Process used when p
Page 2072 and 2073:
extension See file extension.extern
Page 2074 and 2075:
file system Scheme that directs how
Page 2076 and 2077:
each version of Windows. See also d
Page 2078 and 2079:
gearbox Separate units or packages,
Page 2080 and 2081:
GUI (graphical user interface) Inte
Page 2082 and 2083:
hex (hexadecimal) Base-16 numbering
Page 2084 and 2085:
network file transfers in the WWW e
Page 2086 and 2087:
IEEE 802.11 Wireless Ethernet stand
Page 2088 and 2089:
text or images on a piece of paper
Page 2090 and 2091:
a common layer over dissimilar netw
Page 2092 and 2093:
authentication devices, are commonl
Page 2094 and 2095:
and often slower than the L1 cache,
Page 2096 and 2097:
logon screen First screen of the Wi
Page 2098 and 2099:
your wishes. Includes adware, spywa
Page 2100 and 2101:
memory addressing Taking memory add
Page 2102 and 2103:
At a miniscule 6.7 by 6.7 inches, M
Page 2104 and 2105:
mouse Input device that enables use
Page 2106 and 2107:
addresses. The system running the N
Page 2108 and 2109:
frame type, to the cabling and conn
Page 2110 and 2111:
NX bit Technology that enables the
Page 2112 and 2113:
emergency, or network equipment fai
Page 2114 and 2115:
flash drive with which users can re
Page 2116 and 2117:
Performance Tab in Task Manager tha
Page 2118 and 2119:
PKI (public key infrastructure) Aut
Page 2120 and 2121:
anywhere in 3-D space.POST (power-o
Page 2122 and 2123:
primary charge roller.primary parti
Page 2124 and 2125:
Programs and Features Windows Contr
Page 2126 and 2127:
such as tracking inventory, identif
Page 2128 and 2129:
Recycle Bin Location to which files
Page 2130 and 2131:
settings—and presents a fresh ins
Page 2132 and 2133:
rm Linux command for deleting files
Page 2134 and 2135:
SATA (serial ATA) Serialized versio
Page 2136 and 2137:
properly signed software. This incl
Page 2138 and 2139:
line interpreter.shoulder surfing L
Page 2140 and 2141:
S/MIME (Secure/Multipurpose Interne
Page 2142 and 2143:
Spinning Pinwheel of Death (SpoD) A
Page 2144 and 2145:
static charge eliminator Laser prin
Page 2146 and 2147:
SVGA mode if the video driver is co
Page 2148 and 2149:
recent working configuration when s
Page 2150 and 2151:
telephone scams Social engineering
Page 2152 and 2153:
tiers Levels of Internet providers,
Page 2154 and 2155:
transfer rate Rate of data transfer
Page 2156 and 2157:
Ultrabook Thin, powerful laptop pow
Page 2158 and 2159:
User Datagram Protocol (UDP) Connec
Page 2160 and 2161:
Y, and Z position in a 3-D world.VE
Page 2162 and 2163:
system or data. A virus can’t sel
Page 2164 and 2165:
Wi-Fi Protected Setup (WPS) A stand
Page 2166 and 2167:
work area In a basic structured cab
Page 2168 and 2169:
INDEXPlease note that index links p
Page 2170 and 2171:
using multimeter to test outlets fo
Page 2172 and 2173:
installing network printer, 1214-12
Page 2174 and 2175:
AMD (Advanced Micro Devices)CPU dev
Page 2176 and 2177:
update options in macOS, 582-583app
Page 2178 and 2179:
assertive communication, 6-7asset t
Page 2180 and 2181:
auto-switching power supplies, 253,
Page 2182 and 2183:
adding/replacing RAM on portable co
Page 2184 and 2185:
blank pages, troubleshooting laser
Page 2186 and 2187:
BSoD (Blue Screen of Death)bad RAM
Page 2188 and 2189:
carriage, inkjet printer, 1184carri
Page 2190 and 2191:
Character Map, Windows 7 System Too
Page 2192 and 2193:
pruning and grafting folder trees,
Page 2194 and 2195:
coaxial cablingEthernet with, 814-8
Page 2196 and 2197:
hazardous materials, 1247licensing,
Page 2198 and 2199:
parts, 32-34stages of, 35-36conditi
Page 2200 and 2201:
Thunderbolt, 400-401troubleshooting
Page 2202 and 2203:
external data bus (EDB), 88installa
Page 2204 and 2205:
troubleshooting hard drives, 381-38
Page 2206 and 2207:
Bring Your Own BIOS and, 192-193bui
Page 2208 and 2209:
double-sided, 147ECC DRAM, 149-150i
Page 2210 and 2211:
disk thrashing, 155Disk Utility, ma
Page 2212 and 2213:
DMM (digital multimeter), 254-255DN
Page 2214 and 2215:
video RAM vs., 764-765drive bay fan
Page 2216 and 2217:
dynamic range, 794dynamic storage p
Page 2218 and 2219:
encrypting file system (EFS), 560-5
Page 2220 and 2221:
unshielded twisted pair (UTP) cabli
Page 2222 and 2223:
ExpressCards, 34mm and 54mm, 1048-1
Page 2224 and 2225:
overview of, 337-339fax components,
Page 2226 and 2227:
overview of, 1283providing unified
Page 2228 and 2229:
foreign drive, Disk Management, 355
Page 2230 and 2231:
GG (giga), in computing, 94G-Sync,
Page 2232 and 2233:
unauthorized location tracking in m
Page 2234 and 2235:
Hard Drive Initialization Wizard, D
Page 2236 and 2237:
hash tables, passwords, 1269hazardo
Page 2238 and 2239:
HKEY_LOCAL_MACHINE root key, Regist
Page 2240 and 2241:
iOS device integration for e-mail,
Page 2242 and 2243:
1109in-place upgrade, as upgrade in
Page 2244 and 2245:
configuring IP addressing, 858conne
Page 2246 and 2247:
tiers, 936-938troubleshooting, 989-
Page 2248 and 2249:
home automation lighting, 985-986ho
Page 2250 and 2251:
Jjailbreak, as unauthorized root ac
Page 2252 and 2253:
converting into tablets as converti
Page 2254 and 2255:
LCD (liquid crystal display) monito
Page 2256 and 2257:
file systems, 349GParted partition
Page 2258 and 2259:
physical access control via, 1248-1
Page 2260 and 2261:
tech launch points, 70-73Time Machi
Page 2262 and 2263:
man-in-the-middle (MITM) attack, ma
Page 2264 and 2265:
recording IMEI, ICCID, and IMSI num
Page 2266 and 2267:
Mini-ITX (mITX) form factor, 211-21
Page 2268 and 2269:
speaker sound, 1152-1153swollen bat
Page 2270 and 2271:
as computing hardware, 38defined, 7
Page 2272 and 2273:
MP4 video format, 425mSATA form fac
Page 2274 and 2275:
net command, viewing network quickl
Page 2276 and 2277:
overview of, 799review Q & A, 830-8
Page 2278 and 2279:
objects, in Performance Monitor, 51
Page 2280 and 2281:
summary, 1315-1316optical discs, tr
Page 2282 and 2283:
failure to boot. See boot failurefa
Page 2284 and 2285:
parabolic dish-type antennas, 923Pa
Page 2286 and 2287:
valid password reset disk when usin
Page 2288 and 2289:
PDAs (personal digital assistants),
Page 2290 and 2291:
Personalization Applet, Windows 8.1
Page 2292 and 2293:
portable battery recharger, 1148por
Page 2294 and 2295:
post-installation tasks, 477-481Pos
Page 2296 and 2297:
display settings in macOS, 776-779P
Page 2298 and 2299:
print spooler, 1209, 1222-1224setup
Page 2300 and 2301:
running in Windows from command lin
Page 2302 and 2303:
radio frequency identification (RFI
Page 2304 and 2305:
Task Manager Performance tab and, 5
Page 2306 and 2307:
recovering deleted files, 343-344Re
Page 2308 and 2309:
repeat delay/rate, keyboard configu
Page 2310 and 2311:
modems, 941telephones, 810RJ-45 con
Page 2312 and 2313:
SS/MIME (Secure/Multipurpose Intern
Page 2314 and 2315:
hybrid laptops/tablets, 1038trouble
Page 2316 and 2317:
security guards, controlling mantra
Page 2318 and 2319:
homegroups, 877-883network organiza
Page 2320 and 2321:
SLC (single-level cell) memory, SSD
Page 2322 and 2323:
socket typesCPU installation, 116-1
Page 2324 and 2325:
creating dynamic disks, 361, 363-36
Page 2326 and 2327:
spywaredetection/removal software,
Page 2328 and 2329:
Windows 8/8.1, 45-49Windows 10, 52S
Page 2330 and 2331:
power protection with, 1308protecti
Page 2332 and 2333:
System Protection, Volume Copy Shad
Page 2334 and 2335:
troubleshooting autoloading program
Page 2336 and 2337:
Bluetooth pairing process, 926cable
Page 2338 and 2339:
Tier 1 Internet providers, 936, 938
Page 2340 and 2341:
transfer corona/roller, laser print
Page 2342 and 2343:
strange sizes, 1224thermal printers
Page 2344 and 2345:
problems with, 726-727software, 604
Page 2346 and 2347:
Windows installation using, 455-457
Page 2348 and 2349:
for every user account, 528-529FTP
Page 2350 and 2351:
vertical sync (V-sync), 795vertices
Page 2352 and 2353:
optimizing with Performance Options
Page 2354 and 2355:
voice commands, portable computers,
Page 2356 and 2357:
calculating power needs, 274CPUs co
Page 2358 and 2359:
choosing edition to install, 465-46
Page 2360 and 2361:
managing users, 541-544Optimize Dri
Page 2362 and 2363:
NTFS, 345-348Windows Hardware Certi
Page 2364 and 2365:
components, 895-899IEEE 802.11 stan
Page 2366:
Yahoo e-mail, 1125YouTube, laptop r
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