053(七）

31、

31.Which two statements are correct about database transportation? (Choose two.)
A. The source and target platforms must be the same
B. Redo logs, control files and temp files are also transported
C. The transported database must have the same database identifier (DBID) as the source database and cannot be changed
D. The COMPATIBLE parameter must be set to 10.0.0.0 or higher and the database must be opened in readonly mode before being transported
E. Recovery Manager (RMAN) is used to convert the necessary data files of the database if the target platform is different and has different endian format

Answer: DE

参考：
Backup and Recovery User's Guide e10642
'

You must use the RMAN CONVERT command in a transportable tablespace operation when the source platform is different from the destination platform and the endian formats are different.

32、

32.In your production database, you:
-Are using Recovery Manager (RMAN) with a recovery catalog to perform the backup operation at regular intervals Set the control file autobackup to "on"
-Are maintaining image copies of the database files
You have lost the server parameter tile (SPFILE) and the control file. Which option must you consider before restoring the SPFILI: and the control file by using the control file autobackup?
A. setting DBID for the database
B. using the RMAN SWITCH command
C. using the RMAN SWITCH command
D. starting up the database Instance In the NOMOUNT state

Answer: D


答案应该是D

33、

33.You want to perform the following operations for the DATA ASM disk group:
-Verify the consistency of the disk. 
-Cross-check all the file extent maps and allocation tables for consistency. heck whether the alias metadata directory and file directory are linked correctly.
-Check that ASM metadata directories do not have unreachable allocated blocks.
Which command accomplishes these tasks?
A. ALTER DISKGROUP data CHECK;
B. ALTER DISKGROUP data CHECK DISK;
C. ALTER DISKGROUP data CHECK FILE;
D. ALTER DISKGROUP data CHECK DISK IN FAILURE GROUP 1;

Answer: A

34、

34.Examine the following RMAN command:
BACKUP DATABASE
TAG TESTDB
KEEP UNTIL 'SYSDATE+1'
RESTORE POINT TESTDB06;
Which two statements are true regarding the backup taken by using the above RMAN command? (Choose two.)
A. Only data files and the control file are backed up.
B. Archived redo logs are backed up only if the database is open during the backup.
C. The backup is deleted after one day, regardless of the default retention policy settings.
D. The backup becomes obsolete after one day, regardless of the default retention policy settings.

Answer: BD

35、

35.You want the Automatic SQL Tuning process to stop accepting and implementing the recommended SQL profiles automatically. 
Which action would you perform to achieve this?
A. Edit the automatic maintenance window group configuration.
B. Set the CURSOR_SHARING parameter to EXACT for the database instance.
C. Use the DBMS_SQLTUNE.SET_TUNING_TASK_PARAMETERS procedure to set ACCEPT_SQL_PROFILES to FALSE. 
D. Set the SQLTUNE_CATEGORY parameter to DEFAULT for the database instance.

Answer: C

ACCEPT_SQL_PROFILE Specifies whether to accept SQL profiles automatically