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单选题
在SQL语句执行前的解析阶段，要判断其中涉及的表名和列名是否合法，判断所依据的信息存放在（）
A
PGA
B
SHARED POOL
C
DATABASE BUFFER CACHE
D
REDO LOG BUFFER CACHE
E
LARGE POOL
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在SQL语句执行前的解析阶段,要判断其中涉及的表名和列名是否合法,判断所依据的信息存放在()
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考题
单选题You find that the database performance degrades while you backup the PROD database using Recovery Manager （RMAN）. The PROD database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason. Which action would you consider to overcome the performance degradation？（）A
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Configure Streams Pool to enable parallel processing.C
Increase Shared Pool size to cache more PL/SQL objects.D
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单选题Your database is using shared server configuration. Which optional memory structure would you configure to store the User Global Area （UGA） information and improve the shared pool performance？（）A
large poolB
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Automatic Workarea Management is not configured.C
Automatic Shared Memory Management is not enabled.D
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streams poolB
shared poolC
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keep buffer cacheE
recycle buffer cache
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Configure Java Pool to cache the java objects.B
Configure Streams Pool to enable parallel processing.C
Increase Shared Pool size to cache more PL/SQL objects.D
Increase Database Buffer Cache size to increase cache hits.E
Configure Large Pool to be used by RMAN and shared server.F
Increase the total System Global Area （SGA） size to increase memory hits.
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单选题In your database， the RESULT_CACHE_MODE parameter has been set to MANUAL in the initialization parameter file. You issued the following command： SQLSELECT /*+ RESULT_CACHE */ sale_category， sum（sale_amt） FROM sales GROUP BY sale_category； Where would the result of this query be stored（）？A
database buffer cacheB
shared poolC
PGAD
large pool
考题
单选题在SQL语句执行前的解析阶段，要判断其中涉及的表名和列名是否合法，判断所依据的信息存放在（）A
PGAB
SHARED POOLC
DATABASE BUFFER CACHED
REDO LOG BUFFER CACHEE
LARGE POOL
考题
单选题You noticed that large memory allocations for the Oracle backup and restore operations are causing a performance overhead on the shared pool. Which memory structure would you configure to avoid this performance overhead？（）A
recycle buffer cacheB
large poolC
streams poolD
keep buffer cacheE
redo log buffer
考题
单选题SQL语句的编译和执行是在SGA的哪一部分中进行的（）A
Database Buffer CacheB
Redo Log BufferC
Shared PoolD
Large PoolE
Java Pool
考题
单选题An application accesses a small lookup table frequently. You notice that the required data blocks are getting aged out of the default buffer cache. How would you guarantee that the blocks for the table never age out?（）A
Configure the KEEP buffer pool and alter the table with the corresponding storage clause.B
Increase the database buffer cache size.C
Configure the RECYCLE buffer pool and alter the table with the corresponding storage clause.D
Configure Automata Shared Memory Management.E
Configure Automatic Memory Management
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