当前分类： 1Z0-042
问题：单选题What advantage would you get if you increase the length of time during which the undo information would be stored in the database？（）A roll back of large transactionsB roll forward to redo a transactionC data concurrency for large updatesD read consiste...
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问题：单选题In your database， UNDO_RETENTION has been set to 600 sec and UNDO tablespace is configured for RETENTION GUARANTEE. Which statement regarding RETENTION GUARANTEE is true？ （）A Undo data is retained until the next full database backup.B No committed undo...
问题：多选题In which two cases would you perform only consistent backup？（）AYou are working on a database where downtime is not tolerated.BYou are working on a database where downtime can be tolerated.CYou are working on a database that operates in ARCHIVELOG mode....
问题：多选题Which two statements about bigfile tablespaces are true？ （）AThe bigfile tablespace have only one data file.BThe segment space management is automatic.CThe extent management is dictionary managed.DThe database can have only one bigfile tablespace.EThe b...
问题：单选题You observe that in your PROD database， customer information is being modified by some unauthorized users. You want to keep track of all of the transactions happening on the table using PL/SQL. Which type of PL/SQL subprogram or construct would you use...
问题：单选题You execute the following command to audit the database activities： SQL AUDIT DROP ANY TABLE BY scott BY SESSION WHENEVER SUCCESSFUL； What is the effect of this command？（）A One audit record is created for the whole session if user SCOTT successfully ...
问题：单选题Where do you find information about a missing redo log file？（）A trace fileB audit trailC control fileD alert log fileE event viewer...
问题：单选题As a database administrator you spend a lot of time observing and setting various storage parameter values for your application tables in order to gain performance benefits. Which task would you perform to reduce this overhead？（）A Coalesce the applicat...
问题：单选题In the instance of the PROD database， the checkpoint （CKPT） process runs after every minute. A database user updates the rows of the ORDERS table. Because of the configuration， the CKPT process gets initiated before the user commits the transaction. Wh...
问题：单选题The SAVE_AMT column in the ACCOUNTS table contains the balance details of customers in a bank. As part of the year/x7fend tax and interest calculation process， all the rows in the table need to be accessed. The bank authorities want to track access to ...
问题：多选题Which two statements are true about simple views？（）AViews can be created as read only.BViews are data segments like tables.CViews can be created on the basis of more than one table.DData manipulation language （DML） operations cannot be performed on vie...
问题：单选题The operating system filecratabin the Linux platform gets updated whenever you create a new database on the same host machine. What kind of information is stored is stored in this file？（）A OracleSIDsonlyB Oracle homes onlyC Oracle install timestampD O...
问题：多选题You work as a database administrator for Certkiller .com. Your database is opened in NOARCHIVEKLOG mode. You decide to place the database in ARCHIVELOG mode. How would you do this？（）AExecute the ALTER DATABASE ARCHIVELOG statementBSelect ARCHIVELOG op...
问题：单选题You find that the database performance degrades while you backup the PROD database using Recovery Manager （RMAN）. The PROD database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You sus...
问题：多选题You work as a database administrator for Supportcenter.cn. Your database is opened inNOARCHIVEKLOG mode. You decide to place the database in ARCHIVELOG mode. How would you do this？（）AExecute the ALTER DATABASE ARCHIVELOG statementBSelect ARCHIVELOG opt...
问题：单选题It is a holiday and no transactions are being performed on the database. You took a consistent backup of your database without using Recovery Manager （RMAN）. How would you make use of this consistent backup in RMAN？（）A cannot be used in RMANB by starti...
问题：单选题The ST_INFO master table has millions of rows that are updated very rarely. It has a STATE_CODE column that contains the value for 25 states. The table is frequently queried on the STATE_CODE column. Which type of index would you suggest to improve the...
问题：单选题You work as a database administrator for Certkiller .com. You want to be notified when the number of disk I/O increases by 10% of what it was yesterday. You create a baseline metric for yesterday’s disk I/O performance. How do you use the baseline metr...
问题：单选题You work as a database administrator for Certkiller .com. You added atablespaceto your database. Because of the changes to the physical structure of your database， you performed a backup of the control file to trace. After this， you lost only the contr...
问题：单选题You work as a database administrator for Supportcenter.cn. The database is open. A media failure has occurred， resulting in loss of all the control files in your database. Which statement regarding the database instance is true in this scenario？（）A The...
