053(三十）

146.You want to take the backup of the USERS tablespace. It has a single data file of 900 MB. You have tape drives of 300 MB each. 
The SBT channel is configured for the RMAN. To accomplish the backup, you issued the following RMAN command:
RMAN> BACKUP SECTION SIZE 300M TABLESPACE users;
Which two statements are true regarding the execution of the above command? (Choose two.)
A. The RMAN parallelizes the backup although the parallelism is not set for a channel.
B. The backup piece size will be limited to 300 MB. 
C. The operation is accomplished using the default channel available.
D. Three channels for the tape drive must be configured by setting the parallelism to three.

147.You installed Oracle Database 11g afresh. Which statements are true regarding the default audit settings in this database? (Choose all that apply.)
A. The audit trail is stored in an operating system file.
B. Auditing is disabled for all privileges.
C. The audit trail is stored in the database.
D. Auditing is enabled for all privileges.
E. Auditing is enabled for certain privileges related to database security.

148.Which dependent object will get invalidated even if it is not affected by the table edefinition?
A. packages
B. triggers
C. synonyms
D. views

149.You perform a backup using the following BACKUP command:
RMAN> BACKUP AS COMPRESSED BACKUPSET DATABASE;
Which statement is true of this command?
A. A different procedure is required to restore a database from compressed backups
B. The AS COMPRESSED clause of the BACKUP command provided by RMAN is used to create compressed backup sets and image copies.
C. Using this command to create backups minimizes the bandwidth consumed
D. Using this command to create backups improves the performance of the backup process

150.You have enabled backup optimization in RMAN. You issue the following RMAN command to configure a redundancy-based retention policy:
CONFIGURE RETENTION POLICY TO REDUNDANCY 3;
Which statement is true?
A. The command fails because you cannot configure a redundancy-based retention policy when backup optimization is enabled
B. Backup optimization is performed, but RMAN considers the redundancy-based retention policy when it determines which datafiles should be backed up
C. Backup optimization is permanently disabled
D. Backup optimization is temporarily disabled because a redundancy-based retention policy is specified