单项选择题
You want to use RMAN to create compressed backups.Which statement is true about the compression algorithms that RMAN can use?（）
A. The BZIP2 compression algorithm consumes more CPU resources than the ZLIB compression algorithm.
B. The ZLIB compression algorithm consumes more CPU resources than the BZIP2 compression algorithm.
C. The ZLIB compression algorithm provides maximum compression and produces smaller backups than the BZIP2 compression algorithm.
D. Only the BZIP2 compression algorithm can be used to make compressed backups to disk.
相关考题
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单项选择题
WhichstatementistrueregardingtheVALIDATEDATABASEcommand？（）
A. It checks the database for intrablock corruptions only.
B. It checks for block corruption in the valid backups of the database.
C. It checks the database for both intrablock and interblock corruptions.
D. It checks for only those corrupted blocks that are associated with data files. -
单项选择题
Your database is running in ARCHIVELOG mode, and the database is open. You execute an RMAN backupand specify the KEEP clause.Which components are backed up when this option is specified?（）
A. only the control file, the current SPFILE, and data files
B. only the current SPFILE and data files if autobackup is disabled
C. only the data files and the archived redo logs
D. the control file, current SPFILE file, data files, and archived redo logs -
单项选择题
WhichstatementaboutAutomaticMemoryManagementwithOracle11gistrue？（）
A. You cannot specify MEMORY_TARGET if you explicitly specify SGA_TARGET or PGA_AGGREGATE_ TARGET values that are greater than zero in your parameter file.
B. Oracle can reallocate memory between the SGA and PGA automatically as needed.
C. To use Automatic Memory Management， you must explicitly set both the MEMORY_TARGET and MEMORY_MAX_TARGET parameters in your parameter file.
D. You can set the MEMORY_TARGET parameter to a maximum value of the current SGA size plus the current PGA size.
