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单选题
In the instance of the PROD database, the checkpoint (CKPT) process runs after every minute. A database user updates the rows of the ORDERS table. Because of the configuration, the CKPT process gets initiated before the user commits the transaction. What would happen to the modified blocks when the CKPT process is started?()
A

The modified blocks would be written to the data files.

B

The modified blocks would be written to the temp files.

C

The modified blocks would be written to the control file.

D

The modified blocks would be written to the redo log files.

E

The modified blocks would be written to the archived redo log files.

F

The modified blocks would be retained in the database buffer cache.


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更多 “单选题In the instance of the PROD database, the checkpoint (CKPT) process runs after every minute. A database user updates the rows of the ORDERS table. Because of the configuration, the CKPT process gets initiated before the user commits the transaction. What would happen to the modified blocks when the CKPT process is started?()A The modified blocks would be written to the data files.B The modified blocks would be written to the temp files.C The modified blocks would be written to the control file.D The modified blocks would be written to the redo log files.E The modified blocks would be written to the archived redo log files.F The modified blocks would be retained in the database buffer cache.” 相关考题
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考题 单选题You are attempting to increase the checkpoint interval on your database. Each of the following choices will affect the duration and/or frequency of checkpoints, except one.  Which is it?()A Size of redo logs B Number of datafiles C LOG_CHECKPOINT_INTERVAL D LOG_CHECKPOINT_TIMEOUT

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考题 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

考题 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.

考题 多选题You are in the middle of a transaction and very crucial data has been modified. Because of a hardware failure, the instance has shut down before synchronizing all the database files. Which two statements are true?()AOn startup, SMON coordinates instance recovery.BOn startup, CKPT coordinates instance recovery.COn startup, use RMAN to perform instance recovery.DUncommitted changes will be rolled back after the database is opened.EOn startup, perform media recovery and then instance recovery.FOn startup, all the files will be synchronized and you get both committed and uncommitted data.

考题 单选题You want an ASM instance to manage the files of your database. To achieve this objective, you specify the following parameters in the parameter file of the database:  INSTANCE_TYPE = RDBMS DB_NAME = PROD  LARGE_POOL_SIZE = 8MB  DB_BLOCK_SIZE = 4K  LOG_ARCHIVE_DEST = +dgroupA  LOG_ARCHIVE_FORMAT = "$ORACLE_SID_%s_%t.%t"  DB_CREATE_FILE_DEST = +dgroupA  COMPATIBLE = 10.1.0.2.0  CONTROL_FILES = +dgroupA  Which parameter would be ignored while starting up the instance for the database PROD?()A DB_BLOCK_SIZEB CONTROL_FILESC LARGE_POOL_SIZED LOG_ARCHIVE_DESTE LOG_ARCHIVE_FORMATF DB_CREATE_FILE_DEST

考题 多选题Which two 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 online redo log files.

考题 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, 2,5B System Monitor Process (SMON):1,4,5C Process Monitor Process (PMON):4,5,6D Database Writer Process (DBWn):1,3,4

考题 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()A Checkpoint (CKPT): 1, 2, 5B System Monitor (SMON): 1, 6C Process Monitor (PMON): 4, 6, 7D Database Writer (DBWR): 1, 3, 4

考题 单选题In the instance of the PROD database, the checkpoint (CKPT) process runs after every minute. A database user updates the rows of the ORDERS table. Because of the configuration, the CKPT process gets initiated before the user commits the transaction. What would happen to the modified blocks when the CKPT process is started?()A The modified blocks would be written to the data files.B The modified blocks would be written to the temp files.C The modified blocks would be written to the control file.D The modified blocks would be written to the redo log files.E The modified blocks would be written to the archived redo log files.F The modified blocks would be retained in the database buffer cache.