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单选题
An application accesses a small lookup table frequently. You notice that the required data blocks are getting aged out of the default buffer cache. How would you guarantee that the blocks for the table never age out?（）
A
Configure the KEEP buffer pool and alter the table with the corresponding storage clause.
B
Increase the database buffer cache size.
C
Configure the RECYCLE buffer pool and alter the table with the corresponding storage clause.
D
Configure Automata Shared Memory Management.
E
Configure Automatic Memory Management
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更多 “单选题An application accesses a small lookup table frequently. You notice that the required data blocks are getting aged out of the default buffer cache. How would you guarantee that the blocks for the table never age out?（）A Configure the KEEP buffer pool and alter the table with the corresponding storage clause.B Increase the database buffer cache size.C Configure the RECYCLE buffer pool and alter the table with the corresponding storage clause.D Configure Automata Shared Memory Management.E Configure Automatic Memory Management” 相关考题
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A senior DBA asked you to execute the following command to improve performance:SQL ALTER TABLE subscribe log STORAGE (BUFFER_POOL recycle);You checked the data in the SUBSCRIBE_LOG table and found that it is a large table containing one million rows.What could be a reason for this recommendation?（）A. The keep pool is not configured.B. Automatic Workarea Management is not configured.C. Automatic Shared Memory Management is not enabled.D. The data blocks in the SUBSCRIBE_LOG table are rarely accessed.E. All the queries on the SUBSCRIBE_LOG table are rewritten to a materialized view
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An application accesses a small lookup table frequently. You notice that the required data blocks are getting aged out of the default buffer cache.How would you guarantee that the blocks for the table never age out?（）A. Configure the KEEP buffer pool and alter the table with the corresponding storage clause.B. Increase the database buffer cache size.C. Configure the RECYCLE buffer pool and alter the table with the corresponding storage clause.D. Configure Automata Shared Memory Management.E. Configure Automatic Memory Management
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In a recent Automatic Workload Repository (AWR) report for your database, you notice a high number of buffer busy waits. The database consists of locally managed tablespaces with free list managed segments.On further investigation, you find that buffer busy waits is caused by contention on data blocks.Which option would you consider first to decrease the wait event immediately?（）A. Decreasing PCTUSEDB. Decreasing PCTFREEC. Increasing the number of DBWN processD. Using Automatic Segment Space Management (ASSM)E. Increasing db_buffer_cache based on the V$DB_CACHE_ADVICE recommendation
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You noticed that large memory allocations for the Oracle backup and restore operations are causing a performance overhead on the shared pool. Which memory structure would you configure to avoid this performance overhead？（）A、 recycle buffer cacheB、 large poolC、 streams poolD、 keep buffer cacheE、 redo log buffer
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You want to check the EMP table in the user， Scott’s schema for block corruption. You also want to fix the corrupted blocks， if any. How will you accomplish the required task？（）A、by using the ANALYZE utilityB、by using the DBVERIFY utilityC、by using the DB_BLOCK_CHECKING parameterD、by using the DBMS_REPAIR package
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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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You observe that database performance has degraded over a period of time. While investigating the reason， you find that the size of the database buffer cache is not large enough to cache all the needed data blocks. Which advisory component would you refer to， in order to determine the required size of the database buffer cache？（） A、Memory AdvisorB、Segment AdvisorC、SQL Tuning AdvisorD、SQL Access AdvisorE、Automatic Database Diagnostic Monitor （ADDM）
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You configured the large pool for Oracle backup and restore operations. As a result， which component would require less memory？（）A、 streams poolB、 shared poolC、 log bufferD、 keep buffer cacheE、 recycle buffer cache
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A senior DBA asked you to execute the following command to improve performance: SQL ALTER TABLE subscribe log STORAGE (BUFFER_POOL recycle); You checked the data in the SUBSCRIBE_LOG table and found that it is a large table containing one million rows. What could be a reason for this recommendation?（）A、The keep pool is not configured.B、Automatic Workarea Management is not configured.C、Automatic Shared Memory Management is not enabled.D、The data blocks in the SUBSCRIBE_LOG table are rarely accessed.E、All the queries on the SUBSCRIBE_LOG table are rewritten to a materialized view
考题
In a recent Automatic Workload Repository (AWR) report for your database, you notice a high number of buffer busy waits. The database consists of locally managed tablespaces with free list managed segments. On further investigation, you find that buffer busy waits is caused by contention on data blocks. Which option would you consider first to decrease the wait event immediately?（）A、Decreasing PCTUSEDB、Decreasing PCTFREEC、Increasing the number of DBWN processD、Using Automatic Segment Space Management (ASSM)E、Increasing db_buffer_cache based on the V$DB_CACHE_ADVICE recommendation
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Your database is using shared server configuration. Which optional memory structure would you configure to store the User Global Area （UGA） information and improve the shared pool performance？（）A、large poolB、streams poolC、keep buffer cacheD、recycle buffer cache
考题
You suspect unauthorized data manipulation language （DML） operations on a particular table. Youwant to track users who are performing the transactions and the values used in the transactions. You alsoplan to transfer these values to another table for analysis. How would you achieve this（）A、by using triggersB、by using Data PumpC、by using external tablesD、by using anonymous PL/SQL blocks
考题
单选题Your database is using shared server configuration. Which optional memory structure would you configure to store the User Global Area （UGA） information and improve the shared pool performance？（）A
large poolB
streams poolC
keep buffer cacheD
recycle buffer cache
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.
考题
单选题You want to check the EMP table in the user， Scott’s schema for block corruption. You also want to fix the corrupted blocks， if any. How will you accomplish the required task？（）A
by using the ANALYZE utilityB
by using the DBVERIFY utilityC
by using the DB_BLOCK_CHECKING parameterD
by using the DBMS_REPAIR package
考题
单选题An application accesses a small lookup table frequently. You notice that the required data blocks are getting aged out of the default buffer cache. How would you guarantee that the blocks for the table never age out?（）A
Configure the KEEP buffer pool and alter the table with the corresponding storage clause.B
Increase the database buffer cache size.C
Configure the RECYCLE buffer pool and alter the table with the corresponding storage clause.D
Configure Automata Shared Memory Management.E
Configure Automatic Memory Management
考题
单选题You observe that a database performance has degraded over a period of time. While investigating the reason， you find that the size of the database buffer cache is not large enough to cache all the needed data blocks. Which advisory component would you refer to， in order to determine that required size of the database buffer cache？ （）A
Memory AdvisorB
Segment AdvisorC
SQL Tuning AdvisorD
SQL Access AdvisorE
Automatic Database Diagnostic Monitor （ADDM）
考题
单选题You need to base a data block on the EMP table, but you do not want to give the users of the application access privileges on the table. Which type of data source would you use to create the data block?（）A
table B
transactional trigger C
stored procedure D
FROM clause query
考题
单选题A senior DBA asked you to execute the following command to improve performance: SQL ALTER TABLE subscribe log STORAGE (BUFFER_POOL recycle); You checked the data in the SUBSCRIBE_LOG table and found that it is a large table containing one million rows. What could be a reason for this recommendation?（）A
The keep pool is not configured.B
Automatic Workarea Management is not configured.C
Automatic Shared Memory Management is not enabled.D
The data blocks in the SUBSCRIBE_LOG table are rarely accessed.E
All the queries on the SUBSCRIBE_LOG table are rewritten to a materialized view
考题
单选题You configured the large pool for Oracle backup and restore operations. As a result， which component would require less memory？（）A
streams poolB
shared poolC
log bufferD
keep buffer cacheE
recycle buffer cache
考题
单选题In a recent Automatic Workload Repository (AWR) report for your database, you notice a high number of buffer busy waits. The database consists of locally managed tablespaces with free list managed segments. On further investigation, you find that buffer busy waits is caused by contention on data blocks. Which option would you consider first to decrease the wait event immediately?（）A
Decreasing PCTUSEDB
Decreasing PCTFREEC
Increasing the number of DBWN processD
Using Automatic Segment Space Management (ASSM)E
Increasing db_buffer_cache based on the V$DB_CACHE_ADVICE recommendation
考题
多选题You work as a database administrator for Certkiller .com. In your transaction application， you have scheduled a job to update the optimizer statistics at05：00 pm every Friday. The job has successfully completed. Which three pieces of information would you check to confirm that the statistics have been collected？（）AAverage row sizeBLast analyzed dateCSize of table in bytesDSize of table in database blocksENumber of free blocks in the free listFNumber of extents present in the table.
考题
单选题You suspect unauthorized data manipulation language （DML） operations on a particular table. Youwant to track users who are performing the transactions and the values used in the transactions. You alsoplan to transfer these values to another table for analysis. How would you achieve this（）A
by using triggersB
by using Data PumpC
by using external tablesD
by using anonymous PL/SQL blocks
考题
多选题You work as a database administrator for Certkiller .com. In your development environmentenvironment， the developers are responsible for modifying the table structure according to the application requirements. However， you want to keep track of the ALTER TABLE commands being executed by developers， so you enable auditing to achieve this objective. Which two views would you refer to find out the audit information？（）ADBA_AUDIT_TRAILBDBA_AUDIT_SESSIONCDBA_FGA_AUDIT_TRAILDDBA_COMMON_AUDIT_TRAIL
考题
单选题You observe that database performance has degraded over a period of time. While investigating the reason， you find that the size of the database buffer cache is not large enough to cache all the needed data blocks. Which advisory component would you refer to， in order to determine the required size of the database buffer cache？（）A
Memory AdvisorB
Segment AdvisorC
SQL Tuning AdvisorD
SQL Access AdvisorE
Automatic Database Diagnostic Monitor （ADDM）
考题
单选题Users complain about the slow response time of queries. While investigating the cause you find that the Oracle Instance is not configured to cache all of the data blocks to satisfy the users’queries. Which component of the Oracle Instance would you change to improve performance？（）A
Java poolB
Large poolC
Shared poolD
Streams poolE
Library cacheF
Redo log bufferG
Data dictionary cacheH
Database buffer cache
考题
单选题You noticed that large memory allocations for the Oracle backup and restore operations are causing a performance overhead on the shared pool. Which memory structure would you configure to avoid this performance overhead？（）A
recycle buffer cacheB
large poolC
streams poolD
keep buffer cacheE
redo log buffer
考题
单选题An application accesses a small lookup table frequently. You notice that the required data blocks are getting aged out of the default buffer cache. How would you guarantee that the blocks for the table never age out?（）A
Configure the KEEP buffer pool and alter the table with the corresponding storage clause.B
Increase the database buffer cache size.C
Configure the RECYCLE buffer pool and alter the table with the corresponding storage clause.D
Configure Automata Shared Memory Management.E
Configure Automatic Memory Management
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