052(二十九)

141、

141.Which tablespaces are mandatory in an Oracle database for it to be operational? (Choose all that apply.) 
A. Undo tablespace 
B. USERS tablespace 
C. SYSAUX tablespace 
D. SYSTEM tablespace 
E. Temporary tablespace
Answer: CD
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142、View the Exhibit and examine the setting for a table.

Which statement is true about the PCTFREE setting for the table? 
A. It sets the minimum percentage of a data block to be reserved to contain chained rows from other blocks. 
B. It sets the minimum percentage of a data block to be reserved as free space before the server prevents inserts into the block.
C. It sets the minimum percentage of a data block to be reserved to contain the bitmap used to maintain the free block information. 
D. It sets the minimum percentage of a block that can be used for row data plus overhead before new rows are added to the block.
Answer: B 
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143、

143.You executed the following commands in an RMAN session for your database instance that has failures: 
RMAN> LIST FAILURE; 
After some time, you executed the following command in the same session: 
RMAN> ADVISE FAILURE; 
But there are new failures recorded in the Automatic Diagnostic Repository (ADR) after the execution of the last LIST FAILURE command. 
Which statement is true for the above ADVISE FAILURE command in this scenario? 
A. It produces a warning for new failures before advising for CRITICAL and HIGH failures. 
B. It ignores new failures and considers the failures listed in the last LIST FAILURE command only. 
C. It produces advice only for new failures and the failures listed in the last LIST FAILURE command are ignored. 
D. It produces an error with recommendation to run the LIST FAILURE command before the ADVISE FAILURE command. 
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144、View the Exhibit and examine the initialization parameter settings. 

Which three initialization parameters are to be set manually as they are not automatically tuned? (Choose three.) 
A. LOG_BUFFER 
B. SORT_AREA_SIZE 
C. JAVA_POOL_SIZE 
D. STREAMS_POOL_SIZE 
E. DB_16K_CACHE_SIZE 
F. DB_KEEP_CACHE_SIZE 
Answer: AEF
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145、

145.You notice that the performance of the database has degraded because of frequent checkpoints. 
Which two actions resolve the issue? (Choose two.) 
A. Disable automatic checkpoint tuning 
B. Check the size of the redo log file size and increase the size if it is small 
C. Set the FAST_START_MTTR_TARGET parameter as per the advice given by the MTTR Advisor 
D. Decrease the number of redo log members if there are more than one redo log members available in each redo log group
Answer: BC
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原文地址:https://www.cnblogs.com/huanhuanang/p/5363534.html