参考答案和解析
正确答案: E
解析: 暂无解析
更多“单选题Which Oracle background process frees SGA resources that were allocated to a user process that failed?()A PMONB SMONC CKPTD LGWRE ARCn”相关问题
  • 第1题:

    Which Oracle background process is responsible for providing information about the instance name associated with the service handlers and services to the listener?()

    • A、PMON
    • B、SMON
    • C、LGWR
    • D、CKRT

    正确答案:A

  • 第2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3题:

    Your production database is running in the ARCHIVELOG mode and the ARCn process is functional. You have two online redo log groups. Which three background processes would be involved when a log switch happens? ()

    • A、archival
    • B、log writer
    • C、database writer
    • D、system monitor
    • E、process monitor
    • F、change tracking writer

    正确答案:A,B,C

  • 第4题:

    While connected to the database,a user on a PC receives a fatal error and the machine reboots. Which background process cleans up the failed connection?()

    • A、ARCn
    • B、CKPT
    • C、DBWn
    • D、LGWR
    • E、PMON
    • F、SMON

    正确答案:E

  • 第5题:

    You are maintaining an OLTP database in Oracle10g. You find that the database is generating a large number of trace files. You decide to disable the trace files generated by the ARCn background process.  Which action will enable you to disable the trace files generated by the ARCn background process?()  

    • A、 Remove the LOG_ARCHIVE_DEST parameter from the init.ora file.
    • B、 Set the value of the SQL_TRACE parameter to FALSE in the init.ora file.
    • C、 Use the DBMS_MONITOR.SESSION_TRACE_DISABLE procedure.
    • D、 Set the value of the LOG_ARCHIVE_TRACE initialization parameter to zero.

    正确答案:D

  • 第6题:

    As shown in the diagram, in-memory statistics are transferred to the disk at regular intervals. Which background process performs this activity?()

    • A、CKPT
    • B、SMON
    • C、MMON
    • D、DBWR

    正确答案:C

  • 第7题:

    Oracle Instance由哪两个部分组成?()

    • A、Shared pool和Server process
    • B、Shared pool和Background process
    • C、SGA和user process
    • D、PGA和user process
    • E、SGA和Background process

    正确答案:E

  • 第8题:

    单选题
    While connected to the database,a user on a PC receives a fatal error and the machine reboots. Which background process cleans up the failed connection?()
    A

    ARCn

    B

    CKPT

    C

    DBWn

    D

    LGWR

    E

    PMON

    F

    SMON


    正确答案: D
    解析: 暂无解析

  • 第9题:

    单选题
    Note the following functionalities of various background processes: 1. Record the checkpoint information in data file headers. 2. Perform recovery at instance startup. 3. Cleanup unused temporary segments. 4. Free the resources used by a user process when it fails. 5. Dynamically register database services with listeners. 6. Monitor sessions for idle session timeout. Which option has the correct functionalities listed for a background process()
    A

    Archiver Process (ARCn): 1, 2, 5

    B

    System Monitor Process (SMON): 1, 4, 5

    C

    Process Monitor Process (PMON): 4, 5, 6

    D

    Database Writer Process (DBWn): 1, 3, 4


    正确答案: C
    解析: 暂无解析

  • 第10题:

    单选题
    Which Oracle background process is responsible for providing information about the instance name associated with the service handlers and services to the listener?()
    A

    PMON

    B

    SMON

    C

    LGWR

    D

    CKRT


    正确答案: C
    解析: 暂无解析

  • 第11题:

    单选题
    Oracle Server由哪两个部分组成?()
    A

    INSTANCE和DATABASE

    B

    SGA和PGA

    C

    SGA和DATABASE

    D

    Server process和Background process

    E

    SGA和Background process


    正确答案: C
    解析: 暂无解析

  • 第12题:

    单选题
    Note the following functionalities of various background processes:  1:Record the checkpoint information in data file headers. CKPT  2:Perform recovery at instance startup. SMON  3:Cleanup unused temporary segments. SMON  4:Free the resources used by a user process when it fails.  5:Dynamically register database services with listeners.  6:Monitor sessions for idle session timeout.  Which option has the correct functionalities listed for a background process()
    A

    Archiver Process (ARCn):1, 2,5

    B

    System Monitor Process (SMON):1,4,5

    C

    Process Monitor Process (PMON):4,5,6

    D

    Database Writer Process (DBWn):1,3,4


    正确答案: D
    解析: 进程监视器进程(PMON) 在用户进程失败时执行进程恢复。PMON 负责清除数据库缓冲区高速缓存以及释放该用户进程使用的资源。例如,它重置活动事务处理表的状态,释放锁,并且从活动进程列表中删除该进程ID。PMON定期检查分派程序和服务器进程的状态,并重新启动任何已停止运行(但并非Oracle DB 故意终止)的分派程序和服务器进程。PMON 还将有关实例和分派程序进程的信息注册到网络监听程序。与SMON 一样,PMON 定期检查以查看是否需要执行;如果其它进程检测到需要该进程,也可以调用它。

  • 第13题:

    In the parameter file of the production database, the BACKGROUND_DUMP_DEST parameter is set to $ORACLE_HOME/users. Which two types of files would you find in this location?()

    • A、the alert log file
    • B、the core dump files
    • C、the change tracking file
    • D、the user session trace files
    • E、the database audit trail files
    • F、the background process trace files

    正确答案:A,F

  • 第14题:

    Which statement is true regarding the Archiver (ARCn) process,archived log files,and recovery? ()

    • A、A database backup, combined with archived redo log files, guarantees that all committed data can be recovered to the point of failure. 
    • B、During recovery the ARCn background process copies its redo entries identified for recovery by the control file to the data files. 
    • C、After each write to an archived log, the mandatory background process ARCn writes its log sequence number and the first and last SCN number within the log sequence to the control file. 
    • D、At database recover time, and archived redo log is uniquely identified for recovery use by its redo thread number and destination ID number retrieved from the control file.

    正确答案:A

  • 第15题:

    Which Oracle background process frees SGA resources that were allocated to a user process that failed?()

    • A、PMON
    • B、SMON
    • C、CKPT
    • D、LGWR
    • E、ARCn

    正确答案:A

  • 第16题:

    Which background process does Automatic Shared Memory Management use to coordinate the sizing of memory components?()

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

    正确答案:D

  • 第17题:

    Note the following functionalities of various background processes:  1:Record the checkpoint information in data file headers. CKPT  2:Perform recovery at instance startup. SMON  3:Cleanup unused temporary segments. SMON  4:Free the resources used by a user process when it fails.  5:Dynamically register database services with listeners.  6:Monitor sessions for idle session timeout.  Which option has the correct functionalities listed for a background process()

    • A、Archiver Process (ARCn):1, 2,5
    • B、System Monitor Process (SMON):1,4,5
    • C、Process Monitor Process (PMON):4,5,6
    • D、Database Writer Process (DBWn):1,3,4

    正确答案:C

  • 第18题:

    Which background process reads the redo log buffer and writes it to a file?()

    • A、ARCn
    • B、DBWn
    • C、CKPT
    • D、LGWR
    • E、PMON
    • F、SMON

    正确答案:D

  • 第19题:

    Which background process is responsible for writing the dirty buffers from the write list to the data files during a checkpoint?()

    • A、CKPT
    • B、SMON
    • C、LGWR
    • D、DBWn
    • E、ARCn

    正确答案:D

  • 第20题:

    单选题
    Oracle Instance由哪两个部分组成?()
    A

    Shared pool和Server process

    B

    Shared pool和Background process

    C

    SGA和user process

    D

    PGA和user process

    E

    SGA和Background process


    正确答案: E
    解析: 暂无解析

  • 第21题:

    单选题
    You are maintaining an OLTP database in Oracle10g. You find that the database is generating a large number of trace files. You decide to disable the trace files generated by the ARCn background process.  Which action will enable you to disable the trace files generated by the ARCn background process?()
    A

     Remove the LOG_ARCHIVE_DEST parameter from the init.ora file.

    B

     Set the value of the SQL_TRACE parameter to FALSE in the init.ora file.

    C

     Use the DBMS_MONITOR.SESSION_TRACE_DISABLE procedure.

    D

     Set the value of the LOG_ARCHIVE_TRACE initialization parameter to zero.


    正确答案: A
    解析: 暂无解析

  • 第22题:

    单选题
    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: C
    解析: 暂无解析

  • 第23题:

    单选题
    Which statement is true regarding the Archiver (ARCn) process,archived log files,and recovery? ()
    A

    A database backup, combined with archived redo log files, guarantees that all committed data can be recovered to the point of failure. 

    B

    During recovery the ARCn background process copies its redo entries identified for recovery by the control file to the data files. 

    C

    After each write to an archived log, the mandatory background process ARCn writes its log sequence number and the first and last SCN number within the log sequence to the control file. 

    D

    At database recover time, and archived redo log is uniquely identified for recovery use by its redo thread number and destination ID number retrieved from the control file.


    正确答案: A
    解析: 暂无解析