多項選擇題

Which three pieces of information are to be mandatorily provided while creating a new listener using Enterprise Manager Database Control？（）

A.the port used by the listener
B.the protocol used by the listener
C.the server name where the listener runs
D.the log file and trace file destination for the listener
E.the database services to be registered with the listener

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單項選擇題

The application workload on your database is same between 10 a.m. and 11 a.m. on weekdays. Suddenly you observe poor performance between 10 a.m. and 11 a.m. in the middle of the week. How would you identify the changes in configuration settings， workload profile， and statistics to diagnose the possible causes of the performance degradation？（）

A.by using the SQL access advisor
B.by using the Automatic Workload Repository report
C.by running the Automatic Database Diagnostic Monitor （ADDM）
D.by using the Automatic Workload Repository Compare Period report
E.by analyzing the output of the V$ACTIVE_SESSION_HISTORY view

多項選擇題

Which two statements are true about a bitmap index？（）

A.It is recommended for the columns that have unique values.
B.It can be converted to a B-tree index by using the ALTER INDEX command.
C.It has a bitmap segment for each distinct value in the key column， containing a string of bits in which each bit represents the presence or absence of a key column value.
D.Updating the key column locks the whole bitmap segment that contains the bit for the key value to be updated.

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Which three pieces of information are to be mandatorily provided while creating a new listener using Enterprise Manager Database Control？（）

你可能感興趣的試題

Which two statements are true about a bitmap index？ （）

Which three pieces of information are to be mandatorily provided while creating a new listener using Enterprise Manager Database Control？（）

Which two statements are true about a bitmap index？（）