单选题When determining the number of UNDO segments in a database, which of the following choices identifies a factor to consider? （）A Size of typical transactions B Concurrent transactions C Size of rows in table most frequently changed D Number of anticipat

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单选题

When determining the number of UNDO segments in a database, which of the following choices identifies a factor to consider? （）

Size of typical transactions

Concurrent transactions

Size of rows in table most frequently changed

Number of anticipated disk sorts

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第1题

You are maintaining your OLTP database in Oracle10g. While observing the performance of the database， you find that the log switch occurs more than once for every 20 minutes， affecting the database performance. Which factor is responsible for frequent log switches？（） A、the value of the UNDO_RETENTION initialization parameterB、the value of the optimal redo log file size provided by the Redo Logfile Size AdvisorC、the online redo log files sizeD、the number of redo log members in a group

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第2题

You work as a database administrator for Certkiller .com. Users in the Certkiller .com PROD database complain about the slow response of transactions. While investigating the reason you find that the transactions are waiting for the undo segments to be available， and undo retention has been set to zero. What would you do to overcome this problem？（）A、Increase the undo returnB、Create more undo segmentsC、Create another undotablespaceD、Increase the size of the undotablespace

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第3题

Which two statements are true regarding transactions in an Oracle database（）A、Multiple transactions can use the same undo segment.B、A transaction is assigned an undo segment when it is started.C、More than one transaction cannot share the same extent in the undo tablespace.D、The transactions use system undo segment to store undo data if all the segments in the undo tablespaceare used.

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第4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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第5题

You work as a database administrator for Supportcenter.cn. Users in the Supportcenter.cn PROD database complain about the slow response of transactions. While investigating the reason you find that the transactions are waiting for the undo segments to be available， and undo retention has been set to zero. What would you do to overcome this problem？（）A、Increase the undo returnB、Create more undo segmentsC、Create another undotablespaceD、Increase the size of the undo tablespace

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第6题

When determining the number of UNDO segments in a database, which of the following choices identifies a factor to consider? （）A、Size of typical transactions B、Concurrent transactions C、Size of rows in table most frequently changed D、Number of anticipated disk sorts

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第7题

In your Oracle 10g database ， you have scheduled a job to update the optimizer statistics at 05：00 pm every Friday. The job has successfully completed. Which three pieces of information would you check to confirm that the statistics have been collected？（）A、average row sizeB、last analyzed dateC、size of table in bytesD、size of table in database blocksE、number of free blocks in the free listF、number of extents present in the table

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单选题When determining the number of UNDO segments in a database, which of the following choices identifies a factor to consider? （）A Size of typical transactions B Concurrent transactions C Size of rows in table most frequently changed D Number of anticipat

题目

更多“单选题When determining the number of UNDO segments in a database, which of the following choices identifies a factor to consider? （）A Size of typical transactions B Concurrent transactions C Size of rows in table most frequently changed D Number of anticipat”相关问题

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