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 Oracle inventory pointer filesE Oracle database creation timestampF OracleSIDsand Oracle homes onlyG OracleSIDs, Oracle homes and flag for auto startup
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问题:单选题The database users are connecting to the PROD database from different applications, thereby degrading the database performance. The senior database administrator suspects the large number of concurrent connections to be the reason for low performance and asks you to restrict the number concurrent connections per database user to one. Which action would you take to achieve this objective?()A set the SESSIONS to 1 in the parameter fileB grant SINGLE SESSION privilege to all of the usersC set the SESSIONS_PER_USER to 1 in the users’ profileD grant RESTRICTED SESSION privilege to all of the database usersE create a role with SINGLE SESSION privilege and assign the role to the users
问题:多选题Which two statements are true regarding the database in ARCHIVELOG mode?()AYou have to shut down the database to perform the backups.BArchiving information is written to the data files and redo log files.CYou can perform complete database backups without closing the database.DOnline redo log files have to be multiplexed before putting the database in ARCHIVELOG mode.EAll the previous database backups become invalid after you configure the database to ARCHIVELOG mode.
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 suspect the shared pool fragmentation to be the reason. Which action would you consider to overcome the performance degradation?()A Configure Java Pool to cache the java objects.B Configure Streams Pool to enable parallel processing.C Increase Shared Pool size to cache more PL/SQL objects.D Increase Database Buffer Cache size to increase cache hits.E Configure Large Pool to be used by RMAN and shared server.F Increase the total System Global Area (SGA) size to increase memory hits.
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. What would happen to the modified blocks when the CKPT process is started?()A The modified blocks would be written to the data files.B The modified blocks would be written to the temp files.C The modified blocks would be written to the control file.D The modified blocks would be written to the redo log files.E The modified blocks would be written to the archived redo log files.F The modified blocks would be retained in the database buffer cache.
问题:单选题The application workload on your database is same between 10 a.m. and 11 a.m. on weekdays. Suddenly you observe poor performance between 10 a.m. and 11 a.m. in the middle of the week. How would you identify the changes in configuration settings, workload profile, and statistics to diagnose the possible causes of the performance degradation?()A by using the SQL access advisorB by using the Automatic Workload Repository reportC by running the Automatic Database Diagnostic Monitor (ADDM)D by using the Automatic Workload Repository Compare Period reportE by analyzing the output of the V$ACTIVE_SESSION_HISTORY view
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 data will be overwritten for 10 minutes.C Committed undo data will be kept forever if not overwritten within 600 seconds.D Guarantees that requested undo information are available until the instance is shut down.
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 to accomplish this task?()A functionsB packagesC proceduresD database triggersE anonymous PL/SQL block
问题:单选题You work as a database administrator for Supportcenter.cn. Because of space constraints, you decided to manually shrink the table. You executed the ALTER TABLE ....SHRINK SPACE statement to shrink the space and you receive an error as follows: ERROR at Line 1: ORA-10635: Invalid segment or tablespace type What could be the reason? ()A The table is partitionedB The table name is wrong.C It is an index-Organized table (IOT)D The table is stored in locally managedtablespace.E The table is stored in atablespacewhere segment space is managed manually.
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 the rows containing balance amounts exceeding $200,000, and then send an alert message to the administrator. Which method would you suggest to the bank for achieving this task?()A implementing valuebased auditing by using triggersB implementing finegrained auditing with audit condition and event handlerC performing standard database auditing to audit object privileges by setting the AUDIT_TRAIL parameter to EXTENDEDD performing standard database auditing to audit SQL statements with granularity level set to ACCESS
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 query performance?()A B-treeB bitmapC reverse keyD function based
问题:单选题You work as a database administrator for Certkiller .com. You are using three database, Certkiller DB01, Certkiller DB02, and Certkiller DB03, on different host machines in your development environment. The database serverconfiguration, such as IP address and listener port number, change frequently due to development requirements, and you havethe task of notifying the developers of the changes. Which connection method would you use to overcome this overhead?()A Host namingB Local namingC Easy ConnectD External namingE directory naming
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You work as a database administrator for Certkiller .com. You suspect that in one of your applications the customer table is being accessed by some unauthorized users. Which option would you use to monitor the queries being executed on the customer table?()A Monitor thealert.logfileB Enable server-side SQL tracing for user sessionsC Enable fine-grained auditing for the customer tableD Enable Fine-Grained Access Control (FGAC) for the customer tableE Write a database trigger on the customer table on the SELECT event
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.DYou are working on a database that operates in NOARCHIVELOG mode.EYou are working on a database where all the tablespaces are locally managed.FYou are working on a database where control files and redo log files are multiplexed.GYou are working on a database where control files and redo log files are not multiplexed.
问题:多选题Which two operations can be flashed back using the Flashback technology?()ADROP USER SMITH;BDROP TABLE EMPLOYEES;CDROP TABLESPACE USERS;DALTER TABLE SALES_REP DROP PARTITION P1;EALTER TABLE EMPLOYEES DROP COLUMN DESIG_ID;
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 starting up the database againC by using the CATALOG command of RMAND by using the RECOVER CATALOG command in RMANE by re-creating the target control file to rebuild the RMAN repository
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 bigfile tablespace can be converted to a smallfile tablespace.
问题:多选题You work as a database administrator for Supportcenter.cn. You want to administer your database servers, which are running on different host machines, using the Web-enabled grid control interface. You have configured the agent on the host machines. You have started the Oracle Database 10g Grid Control utility on your machine. Which two additional components would you configure to achieve this objective?()AApplication Server ControlBOracle Management ServiceCOracle Enterprise Manager RepositoryDOracle Enterprise Manager Database Control