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Which component of the SGA stores parsed SQL statements is used for process sharing?（）
- A、Buffer cache
- B、Redo log buffer
- C、Private SQL area
- D、Library cache
- E、Row cache
参考答案
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单选题Which component of the SGA stores parsed SQL statements is used for process sharing?（）A
Buffer cache B
Redo log buffer C
Private SQL area D
Library cache E
Row cache
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单选题You have executed this command to change the size of the database buffer cache： SQL ALTER SYSTEM SET DB_CACHE_SIZE=2516582； System altered. To verify the change in size， you executed this command：SQL SHOW PARAMETER DB_CACHE_SIZENAME TYPE VALUE ------------------- ----------- ------------------ db_cache_size big integer 4194304 Why is the value set to 4194304 and not to 2516582（）A
Because 4194304 is the granule sizeB
Because 4194304 is the standard block sizeC
Because 4194304 is the largest nonstandard block size defined in the databaseD
Because 4194304 is the total size of data already available in the database buffer cache
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Memory AdvisorB
Segment AdvisorC
SQL Tuning AdvisorD
SQL Access AdvisorE
Automatic Database Diagnostic Monitor （ADDM）
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单选题You configured the large pool for Oracle backup and restore operations. As a result， which component would require less memory？（）A
streams poolB
shared poolC
log bufferD
keep buffer cacheE
recycle buffer cache
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单选题Flushing dirty buffers out of the buffer cache is influenced to the greatest extent by which of the following process?（）A
ARCH B
SMON C
LGWRD
SERVER
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单选题Which is the source used by Automatic SQL Tuning that runs as part of the AUTOTASK framework？（）A
SQL statements that are part of the AWR baseline onlyB
SQL statements based on the AWR top SQL identificationC
SQL statements that are part of the available SQL Tuning Set （STS） onlyD
SQL statements that are available in the cursor cache and executed by a user other than SYS
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单选题Which is the correct description of a pinned buffer in the database buffer cache（）A
The buffer is currently being accessed.B
The buffer is empty and has not been used.C
The contents of the buffer have changed and must be flushed to the disk by the DBWn process. D
The buffer is a candidate for immediate aging out and its contents are synchronized with the block contents on the disk.
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单选题Automatic Shared Memory Management （ASMM） has been enabled for your database instance. Theinitialization parameters for the components that are managed by ASMM are not set. After observing theeffects of ASSM， you executed the following command： SQL ALTER SYSTEM SET DB_CACHE_SIZE = 100M； Which statement is true in this scenario（）A
The minimum memory size for the database buffer cache is set to 100 mb.B
The maximum memory size that can be obtained by the database buffer cache during ASMM is set to100 mbC
The minimum memory size allocated for a server process in the database buffer cache in dedicatedmode is set to 100 mb.D
The maximum memory size from the database buffer cache that can be released for dynamicdistribution during ASMM is set to 100 mb
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单选题You observe that database performance has degraded over a period of time. While investigating the reason， you find that the size of the database buffer cache is not large enough to cache all the needed data blocks. Which advisory component would you refer to， in order to determine the required size of the database buffer cache？（）A
Memory AdvisorB
Segment AdvisorC
SQL Tuning AdvisorD
SQL Access AdvisorE
Automatic Database Diagnostic Monitor （ADDM）
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