053(十二）

56、

56.You discover that your Recycle Bin contains two tables with the same name, MY_TABLE. You also have a table named MY_TABLE in your schema. 
You execute the following statement:
FLASHBACK TABLE my_table TO BEFORE DROP RENAME TO my_table2;
What will be the result of executing this statement?
A. One of the tables is recovered from the Recycle Bin using a First In First Out (FIFO) approach.
B. One of the tables is recovered from the Recycle Bin using a Last In First Out (LIFO) approach.
C. Both the tables are recovered from the Recycle Bin with one table renamed to MY_TABLE2 and the other to a system-generated name.
D. None of the tables are recovered from the Recycle Bin, and the statement returns an error.

Answer: B

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57、

57.Which background process of a database instance, using Automatic Storage Management (ASM), connects as a foreground process into the ASM instance?
A. ASMB
B. PMON
C. RBAL
D. SMON

Answer: A

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58、

58.Which statement is true when Automatic Workload Repository (AWR) baselines are created using baseline templates?
A. AWR baselines are always created as repeating baselines.
B. AWR baselines can be created on the basis of two time values.
C. AWR baselines are always created with infinite expiration duration.
D. AWR baselines are always created using the Automatic Workload Repository (AWR) retention period as expiration duration.

Answer: B

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59、

59.You have not configured Oracle Managed Files (OMF) in your database. 
You do not want to scan the entire datafile every time an incremental backup is performed. 
You decide to enable the block change tracking feature. 
Which statement should you use to enable the block change tracking feature?
A. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING;
B. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE <path>;
C. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE <path>;
D. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING;

Answer: C

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60、

60.For which two situations would you use functionality provided by the Resource Manager? (Choose two.)
A. setting idle timeout limits on resource plans
B. saving storage space by using compressed backup sets
C. creating jobs that will run automatically at a scheduled time
D. assigning priorities to jobs to manage access to system resources
E. creating alerts to perform notification when tablespaces are low on available space resources

Answer: AD

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