单选题View the Exhibit and identify the component marked with a question mark. ()A Checkpoint (CKPT)B Process Monitor (PMON)C Archiver Processes (ARCn)D Recoverer Process (RECO)E Memory Manager process (MMAN)
单选题
View the Exhibit and identify the component marked with a question mark. ()
A
Checkpoint (CKPT)
B
Process Monitor (PMON)
C
Archiver Processes (ARCn)
D
Recoverer Process (RECO)
E
Memory Manager process (MMAN)
参考解析
解析:
检查点‖是一种数据结构,用于定义数据库的重做线程中的系统更改号(SCN)。 检查点被记录在控制文件和每个数据文件头中。它们是恢复操作的关键元素。 出现检查点时,Oracle DB 必须更新所有数据文件的头,以记录该检查点的详细信息。这是由CKPT进程完成的。CKPT 进程不会将块写入磁盘;该工作都是由DBWn执行。文件头中记录的SCN 可保证将该SCN 之前对数据库块进行的所有更改写入到磁盘中。Oracle Enterprise Manager 中的SYSTEM_STATISTICS监视器将显示统计信息DBWR 检查点,由其指示已完成的检查点请求的数目。
相关考题:
Your database interface is running. A user SCOTT starts a SQL *Plus session, and issues the following query:SQL SELECT * FROM sales;Which process would retrieve the result from the database and return it to the client program?()A. User processB. Server processC. System Monitor (SMON)D. Process Monitor (PMON)E. Checkpoint process (CKPT)
ViewtheExhibitandidentifythecomponentmarkedwithaquestionmark.() A.Checkpoint(CKPT)B.ProcessMonitor(PMON)C.ArchiverProcesses(ARCn)D.RecovererProcess(RECO)E.MemoryManagerprocess(MMAN)
What is an advantage of multiple software process running in the Junos OS?() A. Each process has its own protected memory spaceB. Each process is started manually by the user at bootC. Aall processes are dependent on each otherD. Multiple processes allow each routing protocol to be independent
Process-level redundancy is implemented by a system manager process that creates the standby process.What two functions are provided by the system-level process called Qnet Symlink Manager (QSM)?()A、backing up the information for the broken connectionsB、provides common information for connecting processes and servicesC、detection of a failed connectionD、provides an abstract name for a process or serviceE、distribution of symbolic link information
What is an advantage of multiple software process running in the Junos OS?()A、Each process has its own protected memory spaceB、Each process is started manually by the user at bootC、Aall processes are dependent on each otherD、Multiple processes allow each routing protocol to be independent
Note the functionalities of various background processes: 1:Perform recovery at instance startup. SMON 2:Free the resources used by a user process when it fails. PMON 3:Cleanup the database buffer cache when a process fails. PMON 4:Dynamically register database services with listeners. PMON 5:Monitor sessions for idle session timeout. PMON 6:Cleanup unused temporary segments. SMON 7:Record the checkpoint information in control file. CKPT Which option has the correct functionalities listed for a background process()A、Checkpoint (CKPT): 1, 2, 5B、System Monitor (SMON): 1, 6C、Process Monitor (PMON): 4, 6, 7D、Database Writer (DBWR): 1, 3, 4
Which statement is true regarding the Junos OS?()A、Each process runs in its own protected memory space ensuring that one process cannot directly interfere with another.B、Processes share memory space but use separate ASICs so that one process cannot directly interfere with another.C、A central processor called the IP2 Chip dynamically assigns memory as process needs fluctuate.D、The memory management daemon (mmd) is responsible for allocating new memory for processes as they request it.
Your database interface is running. A user SCOTT starts a SQL *Plus session, and issues the following query: SQL SELECT * FROM sales; Which process would retrieve the result from the database and return it to the client program?()A、User processB、Server processC、System Monitor (SMON)D、Process Monitor (PMON)E、Checkpoint process (CKPT)
Click the Exhibit button and examine the diagram, which illustrates the components performing tasks within an Oracle Shared Sever environment. Which task is being performed by component 4?()A、The PMON process registers the request in the response queue.B、A shared sever places the process request in the response queue.C、A request within the request queue is processed by an idle shared server process.D、A dispatcher assigns a request from the request queue to and idle shared server process.
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, 2,5B、System Monitor Process (SMON):1,4,5C、Process Monitor Process (PMON):4,5,6D、Database Writer Process (DBWn):1,3,4
You have set Tablespace Full Metrics Threshold values for the USERS tablespace as follows:Warning (%): 90Critical (%): 95 Which background process is responsible for issuing alerts when the threshold is crossed()A、System monitor (SMON)B、Process monitor (PMON)C、Memory manager process (MMAN)D、Manageability Monitor process (MMON)
ORACLE数据库启动后,有哪五个必要的后台进程(mandatory background processes)()A、CKPT DBWn LGWR PMON SMONB、ARCn CKPT DBWn LGWR SMONC、CJQ0 CKPT DBWn LGWR SMOND、DBWn LGWR PMON RECO SMONE、CKPT DBWn LMON PMON SMON
Which background process is responsible for writing the dirty buffers from the write list to the data files during a checkpoint?()A、CKPTB、SMONC、LGWRD、DBWnE、ARCn
You have set Tablespace Full Metrics Threshold values for the USERS tablespace as follows: Warning (%): 90 Critical (%): 95 Which background process is responsible for issuing alerts when the threshold is crossed()A、System monitor (SMON)B、Process monitor (PMON)C、Memory manager process (MMAN)D、Manageability Monitor process (MMON)
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, 5B、System Monitor Process (SMON): 1, 4, 5C、Process Monitor Process (PMON): 4, 5, 6D、Database Writer Process (DBWn): 1, 3, 4
单选题You have set Tablespace Full Metrics Threshold values for the USERS tablespace as follows:Warning (%): 90Critical (%): 95 Which background process is responsible for issuing alerts when the threshold is crossed()ASystem monitor (SMON)BProcess monitor (PMON)CMemory manager process (MMAN)DManageability Monitor process (MMON)
单选题What is an advantage of multiple software processes running in the Junos OS?()AEach process has its own protected memory spaceBEach process is started manually by the user at bootCAll processes are dependent on each otherDMultiple processes allow each routing protocol to be independent
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()AArchiver Process (ARCn): 1, 2, 5BSystem Monitor Process (SMON): 1, 4, 5CProcess Monitor Process (PMON): 4, 5, 6DDatabase Writer Process (DBWn): 1, 3, 4
单选题Your database interface is running. A user SCOTT starts a SQL *Plus session, and issues the following query: SQL SELECT * FROM sales; Which process would retrieve the result from the database and return it to the client program?()AUser processBServer processCSystem Monitor (SMON)DProcess Monitor (PMON)ECheckpoint process (CKPT)
单选题Note the functionalities of various background processes: 1:Perform recovery at instance startup. SMON 2:Free the resources used by a user process when it fails. PMON 3:Cleanup the database buffer cache when a process fails. PMON 4:Dynamically register database services with listeners. PMON 5:Monitor sessions for idle session timeout. PMON 6:Cleanup unused temporary segments. SMON 7:Record the checkpoint information in control file. CKPT Which option has the correct functionalities listed for a background process()ACheckpoint (CKPT): 1, 2, 5BSystem Monitor (SMON): 1, 6CProcess Monitor (PMON): 4, 6, 7DDatabase Writer (DBWR): 1, 3, 4
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()AArchiver Process (ARCn): 1, 2, 5BSystem Monitor Process (SMON): 1, 4, 5CProcess Monitor Process (PMON): 4, 5, 6DDatabase Writer Process (DBWn): 1, 3, 4
单选题Click the Exhibit button and examine the diagram, which illustrates the components performing tasks within an Oracle Shared Sever environment. Which task is being performed by component 4?()AThe PMON process registers the request in the response queue.BA shared sever places the process request in the response queue.CA request within the request queue is processed by an idle shared server process.DA dispatcher assigns a request from the request queue to and idle shared server process.
单选题Your database interface is running. A user SCOTT starts a SQL *Plus session, and issues the following query: SQL SELECT * FROM sales; Which process would retrieve the result from the database and return it to the client program?()A User processB Server processC System Monitor (SMON)D Process Monitor (PMON)E Checkpoint process (CKPT)
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()AArchiver Process (ARCn):1, 2,5BSystem Monitor Process (SMON):1,4,5CProcess Monitor Process (PMON):4,5,6DDatabase Writer Process (DBWn):1,3,4
单选题What is an advantage of multiple software process running in the Junos OS?()AEach process has its own protected memory spaceBEach process is started manually by the user at bootCAall processes are dependent on each otherDMultiple processes allow each routing protocol to be independent
多选题Process-level redundancy is implemented by a system manager process that creates the standby process.What two functions are provided by the system-level process called Qnet Symlink Manager (QSM)?()Abacking up the information for the broken connectionsBprovides common information for connecting processes and servicesCdetection of a failed connectionDprovides an abstract name for a process or serviceEdistribution of symbolic link information
单选题You have set Tablespace Full Metrics Threshold values for the USERS tablespace as follows: Warning (%): 90 Critical (%): 95 Which background process is responsible for issuing alerts when the threshold is crossed()ASystem monitor (SMON)BProcess monitor (PMON)CMemory manager process (MMAN)DManageability Monitor process (MMON)