下列國際單位制對應不正確的一組是()。
A.功率——瓦特
B.電流——福特
C.電阻——歐姆
D.頻率——赫茲
第1題
Your multitenant container database (CDB) contains a pluggable database, HR_PDB. The default permanent tablespace in HR_PDB is USERDATA. The container database (CDB) is open and you connect RMAN.You want to issue the following RMAN command:RMAN > BACKUP TABLESPACE hr_pdb:userdata;Which task should you perform before issuing the command?()
A. Place the root container in ARHCHIVELOG mode.
B. Take the user data tablespace offline.
C. Place the root container in the nomount stage.
D. Ensure that HR_PDB is open.
第2題
A. standard backup set
B. image copy
C. compressed backup
D. user-managed backup
第3題
A. Set metric threshold
B. Implement Database Resource Manager
C. Enable resumable timeout for user sessions
D. Add directives to Automatic Database Diagnostic Monitor (ADDM)
第4題
A. Ensure that the source database is Microsoft SQL Server.
B. Ensure that the destination database is Microsoft SQL Server.
C. Ensure that the column names in the source table match the column names in the destination table.
D. Ensure that the bulk copy program (bcp) utility is installed on the destination server.
第5題
A hardware failure forces you to restore the entire database from backup. After you restore the database, the journalists report that they can no longer run queries without receiving errors.
You want to ensure that the journalists can query the database. What should you do?
A.Create a new full-text catalog for the Articles database
B.Rebuild the full-text catalog for the Articles database
C.Create a new full-text index on the table that holds the text for the articles
D.Repopulate the full-text index on the table that holds the text for the articles
第6題
You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature.Which statement should you use to enable the block change tracking feature?()
A. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING
B. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE
C. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE
D. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING
第7題
Because you have had power interruptions in the past, you want to perfect the physical integrity of the Accounts database. You do not want to slow down server operations.
What should you do?
A.Enable the torn page detection database option for each database.
B.Disable write caching on all disk controllers.
C.Ensure that write caching disk controllers have battery backups.
D.Create a database maintenance plan to check database integrity and make repairs each night.
第8題
You want to ensure that comparisons in distributed queries are evaluated correctly. You also want to minimize administrative overhead.
How should you configure SQL1?
A.Use the ALTER DATABASE statement to change the collation of the databases on SQL1.
B.Add SQL2 as remote server.
C.Add SQL2 as a linked server. Select the Use Remote Collation check box, and do not specify a collation name.
D.Add SQL2 as a linked server. Select the Use Remote Collation check box, and specify a collation name. Repeat this process once for each database on SQL2.
第9題
You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature. Which statement should you use to enable the block change tracking feature?()
A. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING;
B. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE <path>;
C. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE <path>;
D. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING;
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