1Z0-053
单选题You have configured flash recovery area in your database and you set the following Initialization parameters for your database instance： LOG_ARCHIVE_DEST 1 = ，，LOCATION=/disk1/arch MANDATORY’ LOG _ARCHIEVE_DEST 2 = ，，LOCATION=/disk2/arch’ LOG_ARCHIV
题目
The online redo log file Is not allowed to be overwritten.
The archived redo log files are written to the flash recovery area until the MANDATORY destination is made available.
The database instance will crash because the archived redo log file cannot be created in a destination set as MANDATORY.
The destination set by the LOG_ARCHIVE_DEST_1 parameter is ignored and the archived redo log files are created in the next two available locations to guarantee archive log success.
相似问题和答案
第1题：
You are maintaining an OLTP database in Oracle10g. You have configured the Flash Recovery Area in your database. The Flash Recovery Area is full because you have set the retention policy to NONE. What will you do to resolve the problem？（）
- A、 Increase the value of the FAST_START_MTTR_TARGET initialization parameter.
- B、 Increase the value of the DB_RECOVERY_FILE_DEST_SIZE parameter.
- C、 Increase the value of the PGA_AGGREGATE_TARGET initialization parameter.
- D、 Increase the value of the SGA_TARGET initialization parameter.
正确答案:B
第2题：
You have configured the flash recovery area to store online redo log files， control files， archived redo logs and RMAN backups. Which of the following files can you successfully delete from the flash recovery area if you want to reclaim the space within it？（）
- A、 multiplexed control files
- B、 RMAN obsolete backups
- C、 multiplexed online redo log files
- D、 archived redo logs that have not been copied to tape
正确答案:B
第3题：
A. Setting the FAST_START_MTTR_TARGET to set the mean time to recover
B. Setting the RECOVERY_PARALLELISM parameter to twice the number of CPUs
C. Using the DB_RECOVERY_FILE_DEST parameter to set the location for flash recovery area
D. Using the DB_RECOVERY_FILE_DEST_SIZE parameter to define the disk space limit for the recovery files created in the flash recovery area
第4题：
Flashback log files
Backups that have become obsolete
User managed backups of the data files and control files
Archived redo log files that have multiple copies in a different archive location and not backed up
第5题：
Enable the flash recovery area and specify it as the archived redo log destination.
Disable the flash recovery area and start the database instance in ARCHIVELOG mode.
Enable the flash recovery area but do not specify it as the archived redo log destination.
Disable the flash recovery area and start the database instance in NOARCHIVELOG mode.
第6题：
You decided to change the location of the flash recovery area. You executed the following command： ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’+disk1’ SCOPE=BOTH SID=’*’； Which statement is true？（）
- A、 The location can be changed only if the flash recovery area is empty.
- B、 After executing the command， all new flash recovery area files will be created in the new location.
- C、 The command will generate an error because you cannot change the flash recovery area while the database is open.
- D、 All the existing files in the flash recovery area will be moved to the new location and all new Flash Recovery Area files will be created in the new location.
正确答案:B
第7题：
ou are using the flash recovery area （fast recovery area in 11g Release 2） to store backup related files in your database. After regular monitoring of space usage in the Mash recovery area. You realize that the flash recovery area is （jetting filled up very fast and it is running out of space. Your database flash recovery area is low on specie and you have no more room on disk. Proactively， which two options could you use to make more space available in the flash recovery（）
- A、 Change the RMAN archived log deletion policy.
- B、 Use the RMAN CROSSCHECK command to reclaim the archived log space.
- C、 Change the RMAN retention policy to retain backups for a shorter period of time.
- D、 Use OS command to move files from the flash recovery area to some other location.
正确答案:B,D
第8题：
Your database instance is running with full workload after database creation. You have decided to useafixed-sizeundo tablespace. You want to use the Undo Advisor to estimate the capacity of the undotablespace. Which two factors must you consider before using the Undo Advisor to estimate the capacity of the undotablespace（）
- A、the retention period to support flashback
- B、the expected length of the longest-running query
- C、the number of undo tablespaces in the database
- D、the size of the Flash Recovery Area for the database instance
正确答案:A,B
第9题：
If the FORMAT option to the RMAN BACKUP command is specified， then RMAN creates backup pieces and image copies in the flash recovery area with names in the Oracle Managed Files （OMF） format.
If any local destinations for LOG_ARCHIVE_DEST_n are set， then archived redo logs are stored in these destinations as well as in the flash recovery area.
If the flash recovery area location is configured using the DB_RECOVERY_FILE_DEST initialization parameter， then the RMAN backup of Oracle managed datafiles （OMF） only will go to the flash recovery area by default.
If no other destination is configured for recovery files， then RMAN places the control file autobackups in the flash recovery area by default.
第10题：
An entry is created in the alert log file and the database instance continues to function normally
The log switch hangs occur for transactions until free space is available in the flash recovery area
The Oracle database server deletes a file that is on the obsolete file list to make free space in the flash recovery area Oracle
The database instance status is implicitly changed to RESTRICTED mode and file creations to the flash recovery area are prevented