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 AL

题目
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 mb

C

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

参考答案和解析
正确答案: D
解析: 暂无解析
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相似问题和答案

第1题:

You use the Memory Advisor to tune the memory structures of your database. What is the prerequisite to use the Memory Advisor?()

  • A、 The database must be in the ARCHIVELOG mode.
  • B、 The automatic memory tuning must be enabled.
  • C、 The change tracking feature must be enabled.
  • D、 The automatic memory tuning must be disabled.

正确答案:D

第2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 mb
  • C、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

正确答案:A

第3题:

View the Exhibit to examine the error during the database startup.You open an RMAN session for the database instance. To repair the failure, you executed the following as the first command in the RMAN session:RMAN> REPAIR FAILURE;Which statement describes the consequence of the command?()

A. The command performs the recovery and closes the failures.

B. The command only displays the advice and the RMAN script required for repair.

C. The command produces an error because the ADVISE FAILURE command has not been executed before the REPAIR FAILURE command.

D. The command executes the RMAN script to repair the failure and removes the entry from the Automatic Diagnostic Repository (ADR).


参考答案:C

第4题:

Your database instance is started using the server parameter file (SPFILE). You executed acommand to change the value of the LOG_BUFFER initialization parameter: ALTER SYSTEM SET LOG_BUFFER=32M SCOPE=BOTH;  What would be the outcome of this command()

  • A、The command succeeds only if Automatic Memory Management is not enabled.
  • B、The command succeeds, but you need to restart the database for changes to take effect.
  • C、The command returns an error because the size of the redo log buffer cannot be changed dynamically.
  • D、The parameter value is changed and it comes into effect as soon as space becomes available in the System Global Area (SGA).

正确答案:C

第5题:

Examine the following parameters for a database instance: MEMORY_MAX_TARGET=0 MEMORY_TARGET=0 SGA_TARGET=0 PGA_AGGREGATE_TARGET=500m Which three initialization parameters are not controlled by Automatic Shared Memory Management (ASMM)?()

  • A、LOG_BUFFER
  • B、SORT_AREA_SIZE
  • C、JAVA_POOL_SIZE
  • D、STREAMS_POOL_SIZE
  • E、DB_16K_CACHE_SZIE
  • F、DB_KEEP_CACHE_SIZE

正确答案:A,E,F

第6题:

You specify a nonzero value for the MEMORY_TARGET initialization parameter,but do not set the PGA_AGGREGATE_TARGET or the SGA_TARGET parameters. You restart your database instance.  Which statement about the result is true?()

  • A、 The database instance starts,and Oracle sets the default value of SGA_TARGET to the same value as SGA_MAX_SIZE
  • B、 The database instance starts,and Oracle automatically tunes memory and allocates 60 percent to the  SGA and 40 percent to the PGA
  • C、 The database instance starts,but Automatic Memory Management is disabled
  • D、 The database instance will not start because you did not specify the PGA_AGGREGATE_TARGET or SGA_TARGET parameter

正确答案:B

第7题:

You are maintaining the SALES database for eSoft Corporation. You have not configured ASMM on the database. You want to know what size of the SGA will provide the best performance.  Which advisor would you use to determine the suitable size of the SGA?()

  • A、 SQL Tuning Advisor
  • B、 Undo Advisor
  • C、 ADDM
  • D、 Memory Advisor

正确答案:D

第8题:

You are upgrading to the Oracle 10g Database and will use the Automatic Shared Memory Management feature of the Oracle 10g Database. Which background process serves as the SGA memory broker that  coordinates the sizing of the memory components?()  

  • A、 MMAN
  • B、 PMON
  • C、 MMON
  • D、 MMNL

正确答案:A

第9题:

A senior DBA asked you to execute the following command to improve performance: SQL> ALTER TABLE subscribe log STORAGE (BUFFER_POOL recycle); You checked the data in the SUBSCRIBE_LOG table and found that it is a large table containing one million rows. What could be a reason for this recommendation?()

  • A、The keep pool is not configured.
  • B、Automatic Workarea Management is not configured.
  • C、Automatic Shared Memory Management is not enabled.
  • D、The data blocks in the SUBSCRIBE_LOG table are rarely accessed.
  • E、All the queries on the SUBSCRIBE_LOG table are rewritten to a materialized view

正确答案:D

第10题:

The Automatic Shared Memory Management feature is enabled for the PROD database. Currently, a lot of insert activity is taking place in the database, and the memory structures are allocated according to the database workload. As the workload reduces, you decide to perform batch jobs in the database. Which of the following initialization parameters are NOT automatically resized according to the new workload and continue to remain unchanged?()

  • A、 LOG_BUFFER
  • B、 DB_CACHE_SIZE
  • C、 JAVA_POOL_SIZE
  • D、 LARGE_POOL_SIZE
  • E、 SHARED_POOL_SIZE
  • F、 STREAMS_POOL_SIZE

正确答案:A,F

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