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
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
相关考题：
As shown in the diagram, in－memory statistics are transferred to the disk at regular intervals. Which background process performs this activity?() A. CKPTB. SMONC. MMOND. DBWR
Whichbackgroundprocessisresponsibleforwritingthedirtybuffersfromthewritelisttothedatafilesduringacheckpoint?() A.CKPTB.SMONC.LGWRD.DBWnE.ARCn
Which Oracle background process is responsible for providing information about the instance name associated with the service handlers and services to the listener？（）A、PMONB、SMONC、LGWRD、CKRT
Which background process sequentially writes Flashback Database data from the flashback buffer to the Flashback Database logs？（）A、 DBWnB、 RECOC、 RVWRD、 LGWR
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.
Which statements are true about checkpointing（）A、The checkpoint frequency decreases with the smaller redo log file size.B、It ensures that all committed data is written to the data files during normal shutdown.C、The frequent full checkpoint in a database can cause the overall degradation of the database performance.D、It prompts the Checkpoint （CKPT） process to write data to the data files and redo information to the onlineredo log files
Which Oracle background process frees SGA resources that were allocated to a user process that failed？（）A、PMONB、SMONC、CKPTD、LGWRE、ARCn
Which background process does Automatic Shared Memory Management use to coordinate the sizing of memory components？（）A、PMONB、SMONC、MMNLD、MMANE、MMON
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.
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
Which two statements are true about checkpointing（）A、The checkpoint frequency decreases with the smaller redo log file size.B、It ensures that all committed data is written to the data files during normal shutdown.C、The frequent full checkpoint in a database can cause the overall degradation of the database performance.D、It prompts the Checkpoint （CKPT） process to write data to the data files and redo information to the online redo log files.
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、LGWRD、SERVER
As shown in the diagram, in-memory statistics are transferred to the disk at regular intervals. Which background process performs this activity?（）A、CKPTB、SMONC、MMOND、DBWR
The instance abnormally terminates because of a power outage. Which statement is true about redolog files during instance recovery（）A、Inactive and current redo log files are required to accomplish recovery.B、Online and archived redo log files are required to accomplish instance recovery.C、All redo log entries after the last checkpoint are applied from redo log files to data files.D、All redo log entries recorded in the current redo log file until the checkpoint position are applied to datafiles.
Which two statements about the background process of the database writer are true（）A、It is possible to have multiple database writers in an Oracle instance.B、It writes dirty buffers， if any， to data files whenever a checkpoint occurs.C、It writes dirty buffers， if any， to data files whenever a transaction commits.D、It writes dirty buffers， if any， to data files before the log writer （LGWR） writes
Which two statements about the background process of thedatabase writerare true（） A、It is possible to have multiple database writers in an Oracle instance.B、It writes dirty buffers， if any， to data files whenever a checkpoint occurs.C、It writes dirty buffers， if any， to data files whenever a transaction commits.D、It writes dirty buffers， if any， to data files before the log writer （LGWR） writes.
多选题Which two statements about the background process of the database writer are true（）AIt is possible to have multiple database writers in an Oracle instance.BIt writes dirty buffers， if any， to data files whenever a checkpoint occurs.CIt writes dirty buffers， if any， to data files whenever a transaction commits.DIt writes dirty buffers， if any， to data files before the log writer （LGWR） writes
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
多选题Which statements are true about checkpointing（）AThe checkpoint frequency decreases with the smaller redo log file size.BIt ensures that all committed data is written to the data files during normal shutdown.CThe frequent full checkpoint in a database can cause the overall degradation of the database performance.DIt prompts the Checkpoint （CKPT） process to write data to the data files and redo information to the onlineredo log files
单选题Which background process sequentially writes Flashback Database data from the flashback buffer to the Flashback Database logs？（）A DBWnB RECOC RVWRD LGWR
单选题Flushing dirty buffers out of the buffer cache is influenced to the greatest extent by which of the following process?（）AARCH BSMON CLGWRDSERVER
单选题Which background process is responsible for writing the dirty buffers from the write list to the data files during a checkpoint？（）ACKPTBSMONCLGWRDDBWnEARCn
多选题Which two statements about the background process of thedatabase writerare true（）AIt is possible to have multiple database writers in an Oracle instance.BIt writes dirty buffers， if any， to data files whenever a checkpoint occurs.CIt writes dirty buffers， if any， to data files whenever a transaction commits.DIt writes dirty buffers， if any， to data files before the log writer （LGWR） writes.
单选题Which statement is true regarding the Archiver （ARCn） process，archived log files，and recovery？ （）AA database backup, combined with archived redo log files, guarantees that all committed data can be recovered to the point of failure. BDuring recovery the ARCn background process copies its redo entries identified for recovery by the control file to the data files. CAfter 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. DAt 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.
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