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 

题目
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 

相似考题

1.下面哪些等待事件表示空闲等待？（）A、SQL*Netmessage to clientB、SQL*Netmessage from clientC、library cache lockD、log file sync

2.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.

3. 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）

4.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 only B、SQL statements based on the AWR top SQL identificationC、SQL statements that are part of the available SQL Tuning Set (STS) only D、SQL statements that are available in the cursor cache and executed by a user other than SYS 

更多“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”相关问题

  • 第1题：

    You configured the large pool for Oracle backup and restore operations. As a result， which component would require less memory？（）

    • A、 streams pool
    • B、 shared pool
    • C、 log buffer
    • D、 keep buffer cache
    • E、 recycle buffer cache

    正确答案:B

  • 第2题：

    The Log Writer （LGWR） process reads information from the （）and writes it to the online logs.

    • A、large pool
    • B、shared pool
    • C、data buffer cache
    • D、redo log buffer
    • E、data dictionary cache

    正确答案:D

  • 第3题：

    You are analyzing how Oracle processes user statements. SQL and PL/SQL parse information is stored in which of the following database memory areas? （）

    • A、Library cache 
    • B、Row cache
    • C、Dictionary cache 
    • D、Large area 
    • E、Buffer cache

    正确答案:B

  • 第4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、LGWR
    • D、SERVER

    正确答案:C

  • 第5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 

    正确答案:C

  • 第6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.

    正确答案:E

  • 第7题：

    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_SIZE NAME TYPE VALUE  ------------------- ----------- ------------------  db_cache_size big integer 4194304  （4M）  Why is the value set to 4194304 and not to 2516582（）
    A

    because 4194304 is the granule size

    B

    because 4194304 is the standard block size

    C

    because 4194304 is the largest nonstandard block size defined in the database

    D

    because 4194304 is the total size of data already available in the database buffer cache


    正确答案： A
    解析： 暂无解析

  • 第8题：

    单选题
    You are analyzing how Oracle processes user statements. SQL and PL/SQL parse information is stored in which of the following database memory areas? （）
    A

    Library cache 

    B

    Row cache

    C

    Dictionary cache 

    D

    Large area 

    E

    Buffer cache


    正确答案： E
    解析： 暂无解析

  • 第9题：

    单选题
    You observe that a 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 that required size of the database buffer cache？ （）
    A

     Memory Advisor

    B

     Segment Advisor

    C

     SQL Tuning Advisor

    D

     SQL Access Advisor

    E

     Automatic Database Diagnostic Monitor （ADDM）


    正确答案： A
    解析： 暂无解析

  • 第10题：

    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

    LGWR

    D

    SERVER


    正确答案： D
    解析： 暂无解析

  • 第11题：

    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.


    正确答案： C
    解析： Every buffer has an access mode:pinnedorfree(unpinned). A buffer is "pinned" in the cache so that it does not age out of memory while a user session accesses it. Multiple sessions cannot modify a pinned buffer at the same time.

  • 第12题：

    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 Advisor

    B

    Segment Advisor

    C

    SQL Tuning Advisor

    D

    SQL Access Advisor

    E

    Automatic Database Diagnostic Monitor （ADDM）


    正确答案： C
    解析： 暂无解析

  • 第13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14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 only
    • B、 SQL statements based on the AWR top SQL identification
    • C、 SQL statements that are part of the available SQL Tuning Set （STS） only
    • D、 SQL statements that are available in the cursor cache and executed by a user other than SYS

    正确答案:B

  • 第15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、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.

    正确答案:E

  • 第16题：

    Records from the data dictionary information are stored in which of the following database memory areas?（）

    • A、Library cache 
    • B、Row cache 
    • C、Session UGA 
    • D、Buffer cache

    正确答案:B

  • 第17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_SIZE NAME TYPE VALUE  ------------------- ----------- ------------------  db_cache_size big integer 4194304  （4M）  Why is the value set to 4194304 and not to 2516582（）

    • A、because 4194304 is the granule size
    • B、because 4194304 is the standard block size
    • C、because 4194304 is the largest nonstandard block size defined in the database
    • D、because 4194304 is the total size of data already available in the database buffer cache

    正确答案:A

  • 第18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

    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.


    正确答案： D
    解析： 暂无解析

  • 第19题：

    单选题
    The Log Writer （LGWR） process reads information from the （）and writes it to the online logs.
    A

    large pool

    B

    shared pool

    C

    data buffer cache

    D

    redo log buffer

    E

    data dictionary cache


    正确答案： C
    解析： 暂无解析

  • 第20题：

    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 size

    B

    Because 4194304 is the standard block size

    C

    Because 4194304 is the largest nonstandard block size defined in the database

    D

    Because 4194304 is the total size of data already available in the database buffer cache


    正确答案： C
    解析： 暂无解析

  • 第21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 pool

    B

     shared pool

    C

     log buffer

    D

     keep buffer cache

    E

     recycle buffer cache


    正确答案： E
    解析： 暂无解析

  • 第22题：

    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 only

    B

     SQL statements based on the AWR top SQL identification

    C

     SQL statements that are part of the available SQL Tuning Set （STS） only

    D

     SQL statements that are available in the cursor cache and executed by a user other than SYS


    正确答案： A
    解析： 暂无解析

  • 第23题：

    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


    正确答案： C
    解析： 暂无解析

相关内容