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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 pool
  • B、streams pool
  • C、keep buffer cache
  • D、recycle buffer cache

参考答案

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考题 单选题Identify the memory component from which memory may be allocated for: () 1: Session memory for the shared server  2: Buffers for I/O slaves  3: Oracle Database Recovery Manager (RMAN) backup and restore operationsA Large PoolB Redo Log BufferC Database Buffer CacheD Program Global Area (PGA)

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考题 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

考题 单选题You work as a database administrator for Certkiller .com. You find that the database performance degrades while you backup the Certkiller database using Recovery Manager (RMAN). The Certkiller 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 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.

考题 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