CCNA Cisco Certified Network Associate Study Guide - FTP Server

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514 Chapter 10 � Wide Area <strong>Network</strong>ing Protocols Take a look at the following configuration of an 804 router: 804B#sh run Building configuration... Current configuration: ! version 12.0 no service pad service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname 804B ! ip subnet-zero ! isdn switch-type basic-ni ! interface Ethernet0 ip address 172.16.50.10 255.255.255.0 no ip directed-broadcast ! interface BRI0 ip address 172.16.60.2 255.255.255.0 no ip directed-broadcast encapsulation ppp dialer idle-timeout 300 dialer string 8358661 dialer load-threshold 2 either dialer-group 1 isdn switch-type basic-ni isdn spid1 0835866201 8358662 isdn spid2 0835866401 8358664 hold-queue 75 in ! ip classless
Optional Commands Dial-on-Demand Routing (DDR) 515 ip route 172.16.30.0 255.255.255.0 172.16.60.1 ip route 172.16.60.1 255.255.255.255 BRI0 ! dialer-list 1 protocol ip permit ! The BRI interface is running the PPP encapsulation and has a timeout value of 300 seconds. The load-threshold command makes both BRI interfaces come up immediately (Okay, I feel that if I am paying for both I want them both up all the time). The one thing you really want to notice is the dialer-group 1 command. That number must match the dialer-list number. The hold-queue 75 in command tells the router that when it receives an interesting packet, it should queue up to 75 packets while it is waiting for the BRI to come up. If there are more than 75 packets queued before the link comes up, the packets will be dropped. There are two other commands that you should configure on your BRI interface: the dialer load-threshold command and the dialer idletimeout command. The dialer load-threshold command tells the BRI interface when to bring up the second B channel. The option is from 1–255, where 255 tells the BRI to bring up the second B channel only when the first channel is 100 percent loaded. The second option for that command is in, out, or either. This calculates the actual load on the interface either on outbound traffic, inbound traffic, or combined. The default is outbound. The dialer idle-timeout command specifies the number of seconds before a call is disconnected after the last interesting traffic is sent. The default is 120 seconds. RouterA(config-if)#dialer load-threshold 125 either RouterA(config-if)#dialer idle-timeout 180 The dialer load-threshold 125 tells the BRI interface to bring up the second B channel if either the inbound or outbound traffic load is 50 percent. The dialer idle-timeout 180 changes the default disconnect time from 120 to 180 seconds.
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CCNA Cisco Certified Network Associ
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Associate Publisher: Neil Edde Cont
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This book is dedicated to all the C
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Introduction Welcome to the excitin
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Introduction xxv installing, managi
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Introduction xxvii but you still ha
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Introduction xxix To meet the CCNP
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Introduction xxxi through!) Also, b
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CCDPs must also demonstrate profici
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Introduction xxxv answering the rev
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Introduction xxxvii don’t need to
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Introduction xxxix questions and un
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Assessment Questions Assessment Que
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Assessment Questions xliii 9. Which
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Assessment Questions xlv 17. What i
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Assessment Questions xlvii 23. Whic
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Assessment Questions xlix 31. What
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Assessment Questions li 39. What ar
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Assessment Questions liii 47. Which
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Answers to the Assessment Questions
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Chapter 1 Internetworking THE CCNA
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Internetworking Models Internetwork
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The OSI Reference Model FIGURE 1.1
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FIGURE 1.3 Layer functions The OSI
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The OSI Reference Model 9 JPEG The
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The OSI Reference Model 11 Connecti
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The OSI Reference Model 13 answer t
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The OSI Reference Model 15 before s
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The OSI Reference Model 17 The rout
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The OSI Reference Model 19 For a ho
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Ethernet Networking 21 The Physical
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Ethernet Networking 23 Ethernet is
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FIGURE 1.11 802.3 and Ethernet fram
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802.2 and SNAP FIGURE 1.12 802.2 an
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Ethernet Networking 29 You can iden
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FIGURE 1.13 Data encapsulation Data
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The Cisco Three-Layer Hierarchical
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The Core Layer The Cisco Three-Laye
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Assembling and Cabling Cisco Device
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6-3 7-2 8-1 Selecting Cisco Product
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FIGURE 1.20 Cisco hub products Cisc
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Cisco Switches Selecting Cisco Prod
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Summary Key Terms Summary 51 This c
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Written Labs In this section, you w
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Lab 1.2: Defining the OSI Layers an
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Review Questions Review Questions 5
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8. How is a crossover cabled? Revie
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Review Questions 61 15. Routers can
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64 Chapter 1 � Internetworking An
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Chapter 2 Switching Technologies TH
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Layer-2 Switching 73 switches are f
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Layer-2 Switching 75 switch now has
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Loop Avoidance FIGURE 2.2 Broadcast
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Spanning-Tree Protocol (STP) Spanni
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Spanning-Tree Protocol (STP) 81 802
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Spanning-Tree Protocol (STP) 83 If
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FIGURE 2.6 Different switching mode
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Key Terms Summary 87 Before taking
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Review Questions 1. Which LAN switc
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Review Questions 91 8. What are the
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15. What is the default LAN switch
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96 Chapter 2 � Switching Technolo
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98 Chapter 2 � Switching Technolo
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The Transmission Control Protocol/I
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102 Chapter 3 � Internet Protocol
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Answers to the Written Lab 167 8. S
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Answers to Review Questions 169 12.
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In this chapter, you will be introd
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174 Chapter 4 � Configuration and
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Routing This chapter will discuss t
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238 Chapter 5 � IP Routing In our
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240 Chapter 5 � IP Routing router
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242 Chapter 5 � IP Routing Figure
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260 Chapter 5 � IP Routing Routin
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Virtual LANs A Virtual Local Area N
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302 Chapter 6 � Virtual LANs (VLA
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Answers to Review Questions Answers
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Chapter 7 Managing a Cisco Internet
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The Internal Components of a Cisco
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Managing Configuration Registers 32
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Backing Up and Restoring the Cisco
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Using Cisco Discovery Protocol 345
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Using Telnet Using Telnet 351 Encap
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Using Telnet 353 Remember that the
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Checking Telnet Connections Using T
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Resolving Hostnames 357 This output
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Resolving Hostnames 359 To verify t
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Resolving Hostnames 361 it doesn’
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apollo Apollo echo appletalk Applet
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Key Terms Summary 365 Next, you lea
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Command Description Summary 367 no
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Written Lab Write in the answers to
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Hands-on Labs 371 flash tftp. This
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Lab 7.5: Using Telnet Hands-on Labs
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Hands-on Labs 375 4. Test your host
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Review Questions 377 5. Which memor
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13. What does the command cdp timer
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382 Chapter 7 � Managing a Cisco
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384 Chapter 7 � Managing a Cisco
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Most network administrators have, a
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388 Chapter 8 � Configuring Novel
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Chapter 9 Managing Traffic with Acc
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Access Lists 441 interface. Applyin
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Access Lists 443 IP extended acces
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Access Lists 445 Now, that was the
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Access Lists 447 On the Acme router
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Access Lists 449 Once you choose th
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discard Discard (9) domain Domain N
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IPX Access Lists 453 LAN. However,
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IPX Access Lists 455 The access lis
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Router(config)#access-list 1010 per
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Key Terms Summary 459 � How to co
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Written Lab In this section, write
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Page 547 and 548: Dial-on-Demand Routing (DDR) 511 Th
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Page 579 and 580: 544 Appendix A � Practice Exam Qu
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Page 583 and 584: 548 Appendix A � Practice Exam 18
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566 Appendix A � Practice Exam 61
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The CCNA courseware for the new CCN
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570 Appendix B � Configuring the
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634 Appendix C � Commands in This
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650 Glossary A&B bit signaling Used
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652 Glossary address learning Used
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654 Glossary anycast An ATM address
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656 Glossary ATM Asynchronous Trans
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658 Glossary auxiliary port The con
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660 Glossary bridge A device for co
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662 Glossary CBR Constant Bit Rate:
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664 Glossary circuit switching Used
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666 Glossary configuration register
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668 Glossary crankback In ATM, a co
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670 Glossary DDP Datagram Delivery
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672 Glossary DSR Data Set Ready: Wh
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674 Glossary ELAN Emulated LAN: An
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676 Glossary failure domain The reg
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678 Glossary FragmentFree LAN switc
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680 Glossary helper address The uni
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682 Glossary IGP Interior Gateway P
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684 Glossary IP multicast A techniq
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686 Glossary learning bridge A brid
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688 Glossary MAC Media Access Contr
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690 Glossary MLP Multilink PPP: A t
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692 Glossary NetBEUI NetBIOS Extend
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694 Glossary NT1 network terminatio
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696 Glossary packet switch A physic
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698 Glossary poison reverse updates
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700 Glossary PVP tunneling permanen
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702 Glossary route poisoning Used b
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704 Glossary server Hardware and so
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706 Glossary span A full-duplex dig
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708 Glossary SR/TLB source-route tr
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710 Glossary subinterface One of ma
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712 Glossary TE terminal equipment:
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714 Glossary TRIP Token Ring Interf
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716 Glossary WAN wide area network:
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