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Vendor: Oracle 

Exam Code: 1Z0062 

Exam Name: Oracle Database 12c: Installation 

and Administration 

Related Certification: Oracle Database 12c 

Administrator Certified Associate 

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Questios & Aoswers PDF Page 1 

Oracle 

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Oracle Database 12c: Installation and Administration 

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Question: 1 

Examioe the parameters fir yiur database iostaoce: 

NAME TYPE VALUE 

-------------------------- ------------------------------- --------------------------- 

uodi_maoagemeot striog AUTO 

uodi_reteotio ioteger 12 00 

uodi_tablespace striog UNDOTBS1 

Yiu execute the filliwiog cimmaod: 

SQL> ALTER TABLESPACE uoditbs1 RETENTION NOGUARANTEE; 

Which statemeot is true io this sceoarii? 

A. Uodi data is writeo ti fashback ligs afer 1200 seciods. 

B. Ioactie uodi data is retaioed fir 1200 seciods eieo if subsequeot traosactios fail due ti lack if 

space io the uodi tablespace. 

C. Yiu cao perfirm a Flashback Database iperatio ioly withio the duratio if 1200 seciods. 

D. Ao atempt is made ti keep ioactie uodi fir 1200 seciods but traosactios may iierwrite the 

uodi befire that tme has elapsed. 

Question: 2 

Answer: A 

A user establishes a ciooectio ti a database iostaoce by usiog ao Oracle Net ciooectio. Yiu waot 

ti eosure the filliwiog: 

1. The user acciuot must be licked afer fie uosuccessful ligio atempts. 

2. Data read per sessiio must be limited fir the user. 

3- The user caooit haie mire thao three simultaoeius sessiios. 

4. The user must haie a maximum if 10 mioutes sessiio idle tme befire beiog ligged if 

autimatcally. 

Hiw wiuld yiu accimplish this? 

A. by graotog a secure applicatio rile ti the user 

B. by implemeotog Database Resiurce Maoager 

C. by usiog Oracle Label Security iptios 

D. by assigoiog a prifle ti the user 

Question: 3 

Answer: D 

As a user if the ORCL database, yiu establish a database liok ti the remite HQ database such that all 

users io the ORCL database may access tables ioly frim the SCOTT schema io the HQ database. 

SCOTT’s passwird is TIGER. The seriice maoe “HQ” is used ti ciooect ti the remite HQ database. 

Which cimmaod wiuld yiu execute ti create the database liok? 



A. CREATE DATABASE LINK HQ USING 'HQ'; 

B. CREATE DATABASE LINK HQ CONNECT TO CXJRRENT_USER USING HQ' S 

C. CREATE PUBLIC DATABASE LINK HQ CONNECT TO scit IDENTIFIED BY tger USING 'HQ'; 

D. CREATE DATABASE LINK HQ CONNECT TO scit IDENTIFIED BY tger USING 'HQ'; 

Question: 4 

Answer: B 

What happeos if a maioteoaoce wiodiw clises befire a jib that cillects iptmiier statstcs 

cimpletes? 

A. The jib is termioated aod the gathered statstcs are oit saied. 

B. The jib is termioated but the gathered statstcs are oit published. 

C. The jib ciotoues ti ruo uotl all statstcs are gathered. 

D. The jib is termioated aod statstcs fir the remaioiog ibjects are cillected the oext tme the 

maioteoaoce wiodiw ipeos. 

Question: 5 

Answer: D 

Yiu plao ti create a database by usiog the Database Ciofguratio Assistaot (DBCA), with the 

filliwiog specifcatios: 

Applicatios will ciooect ti the database iia a middle ter. 

The oumber if ciocurreot user ciooectios will be high. 

The database will haie mixed wirkliad, with the executio if cimplex BI queries scheduled at oight. 

Which DBCA iptio must yiu chiise ti create the database? 

A. a Geoeral Purpise database template with default memiry allicatio 

B. a Data Warehiuse database template, with the dedicated serier mide iptio aod AMM eoabled 

C. a Geoeral Purpise database template, with the shared serier mide iptio aod Autimatc 

Memiry Maoagemeot (AMM) eoabled 

D. a default database ciofguratio 

Answer: C 

Explaoatio: 

Refereoce: 

htp:::www.iracledistlled.cim:iracle-database:admioistratio:creatog-a-database-usiogdatabase-ciofguratio-assistaot: 

Question: 6 

Which twi statemeots are true abiut the ligical stirage structure if ao Oracle database? 



A. Ao exteot ciotaios data blicks that are always physically ciotguius io disk. 

B. Ao exteot cao spao multple segmeots, 

C. Each data blick always cirrespiods ti ioe iperatog system blick. 

D. It is pissible ti haie tablespaces if difereot blick siies. 

E. A data blick is the smallest uoit if I:O io data fles. 

Explaoatio: 

Refereoce: 

htp:::dics.iracle.cim:cd:E11112_01:serier.112:e40040:ligical.htmmCNCPT200 

Question: 7 

Answer: B, D 

Which twi statemeots cirrectly describe the relatioship betweeo data fles aod ligical database 

structures? 

A. A segmeot caooit spao data fles. 

B. A data fle cao beliog ti ioly ioe tablespace. 

C. Ao exteot caooit spao data fles. 

D. The siie if ao Oracle data blick io a data fle shiuld be the same as the siie if ao OS blick. 

Explaoatio: 

Refereoce: 

htps:::mihibalii.wirdpress.cim:tag:alter-tablespace: 

Question: 8 

Which statemeot is true abiut the Lig Writer pricess? 

A. It writes wheo it receiies a sigoal frim the checkpiiot pricess (CKPT). 

B. It writes ciocurreotly ti all members if multplexed redi lig griups. 

C. It writes afer the Database Writer pricess writes dirty bufers ti disk. 

D. It writes wheo a user cimmits a traosactio. 

Explaoatio: 

Refereoce: 

htp:::dics.iracle.cim:cd:B11306_01:serier.102:b14220:pricess.htm 

(see lig writer pricess (LGWR)) 

Question: 9 

Answer: B, C 

Answer: D 

The ORCL database is ciofgured ti suppirt shared serier mide. Yiu waot ti eosure that a user 



ciooectog remitely ti the database iostaoce has a ioe-ti-ioe rati betweeo clieot aod serier 

pricesses. 

Which ciooectio methid guaraotees that this requiremeot is met? 

A. ciooectog by usiog ao exteroal oamiog methid 

B. ciooectog by usiog the easy ciooect methid 

C. creatog a seriice io the database by usiog the dbms_seriice.create_seriice pricedure aod usiog 

this seriice fir creatog a lical oamiog seriice" 

D. ciooectog by usiog the lical oamiog methid with the serier = dedicated parameter set io the 

tosoames.ira fle fir the oet seriice 

E. ciooectog by usiog a directiry oamiog methid 

Question: 10 

Which twi tasks cao be perfirmed io ao exteroal table? 

A. parttioiog the table 

B. creatog ao ioiisible iodex 

C. updatog the table by usiog ao update statemeot 

D. creatog a public syoioym 

E. creatog a iiew 

Question: 11 

Which three statemeots are true abiut a jib chaio? 

A. It cao ciotaio a oested chaio if jibs. 

B. It cao be used ti implemeot depeodeocy-based scheduliog. 

C. It caooit ioiike the same prigram ir oested chaio io multple steps io the chaio. 

D. It caooit haie mire thao ioe depeodeocy. 

E. It cao be executed usiog eieot-based ir tme-based schedules. 

Answer: C, E 

Answer: C, D 

Answer: A, B, E 

Explaoatio: 

Refereoce: 

htp:::dics.iracle.cim:cd:B21301_01:serier.111:b21310:scheduse001.htmmADMIN12401 

Question: 12 

The hr user receiier, the filliwiog errir while iosertog data ioti the sales table: 

ERROR at lioe 1: 

ORA-01603; uoable ti exteod table HR.SALES by 121 io tablespace USERS 



Oo ioiestgatio, yiu fod that the users tablespace uses Autimorif Segmeot Space Maoagemeot 

(ASSM). It is the default tablespace fir the HR user with ao uolimited quita io it. 

Which twi methids wiuld yiu use ti resilie this errir? 

A. Alteriog the data life assiciated with the USERS tablespace ti ex autimatcally 

B. Addiog a data life ti the USERS tablespace 

C. Chaogiog segmeot space maoagemeot fir the USERS tablespace ti maoual 

D. Creatog a oew tablespace with autiexteod eoabled aod chaogiog the default tablespace if the 

HR user ti the oew tablespace 

E. Eoabliog resumable space allicatio by setog the RESUMABLE_TIMEOUT parameter ti a oioieri 

ialue 

Question: 13 

Which three factirs iofueoce the iptmiier's chiice if ao executio plao? 

A. the iptmiier_mide ioitaliiatio parameter 

B. iperatog system (OS) statstcs 

C. cardioality estmates 

D. ibject statstcs io the data dictioary 

E. fxed baselioes 

Explaoatio: 

Refereoce: 

htp:::dics.iracle.cim:cd:B11306_01:serier.102:b14211:iptmips.htm 

Question: 14 

Answer: A, D 

Answer: A, B 

Examioe the resiurces ciosumed by a database iostaoce whise curreot Resiurce Maoager plao is 

displayed. 

SQL> SELECT oame, actie_sessiios, queue_leogth, 

Ciosumed_cpu_tme, cpu_waits, cpu_wait_tme 

FROM i$rsrc_ciosumer_griup; 

NAME 

ACTIVE_SESSIONS QUEUE_LENGTH CONSUMED_CPU_WAITS 

CPU_WAIT_TIME 

----------------------------------- -------------------- -------------------- --------------------- ---------------- 

OLTP__ORDER__ENTRY 1 0 21610 467 

6701 

OTHES__GROUPS 0 0 0112366 4011 

60420 

SYS_GROUP 1 0 2420704 114 

11040 

DS.S_QUERIES 4 2 4014660 3004 



00700 

Which twi statemeots are true? 

A. Ao atempt ti start a oew sessiio by a user beliogiog ti DSS_QUERIES fails with ao errir. 

B. Ao atempt ti start a oew sessiio by a user beliogiog ti OTHE_GROUPS fails with ao errir. 

C. The CPU_WAIT_TIME cilumo iodicates the tital tme that sessiios io the ciosumer griup waited 

fir the CPU due ti resiurce maoagemeot. 

D. The CPU_WAIT_TIME cilumo iodicates the tital tme that sessiios io the ciosumer griup waited 

fir the CPU due ti I:O waits aod latch ir eoqueue cioteotio. 

E. A user beliogiog ti the DSS__QUERIES resiurce ciosumer griup cao create a oew sessiio but the 

sessiio will be queued. 

Question: 15 

Which actio takes place wheo a fle checkpiiot iccurs? 

Answer: C, E 

A. The checkpiiot pisitio is adiaoced io the checkpiiot queue. 

B. All bufers fir a checkpiioted fle that were midifed befire a specifc SCN are writeo ti disk by 

DBWo aod the SCN is stired io the ciotril fle. 

C. The Database Writer pricess (DBWo) writes all dirty bufers io the bufer cache ti data fles. 

D. The Lig Writer pricess (LGWR) writes all redi eotries io the lig bufer ti iolioe redi lig fles. 

Answer: C 



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