單項選擇題

You executed the following command in the lsnrctl utility to stop the listener： lsnrctl> STOP L1
What is the effect of this command if L1 is the only listener configured for your database？（）

A.It terminates all user sessions.
B.It prevents users from logging in to the database remotely.
C.It halts the server until all user transactions are completed.
D.The server hangs， so users will receive an error asking them to login again.
E.Connected users would get an error with the message "End of communication channel".

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單項選擇題

You have a production instance running on your server. UNDO_RETENTION is not long enough to satisfy read-consistency requirements. How do you change the UNDO_RETENTION value？（）

A.A
B.B
C.C
D.D

多項選擇題

In which two cases would you perform only consistent backup？（）

A.You are working on a database where downtime is not tolerated.
B.You are working on a database where downtime can be tolerated.
C.You are working on a database that operates in ARCHIVELOG mode.
D.You are working on a database that operates in NOARCHIVELOG mode.
E.You are working on a database where all the tablespaces are locally managed.
F.You are working on a database where control files and redo log files are multiplexed.
G.You are working on a database where control files and redo log files are not multiplexed.

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You executed the following command in the lsnrctl utility to stop the listener： lsnrctl> STOP L1 What is the effect of this command if L1 is the only listener configured for your database？（）

你可能感興趣的試題

You have a production instance running on your server. UNDO_RETENTION is not long enough to satisfy read-consistency requirements. How do you change the UNDO_RETENTION value？（）

In which two cases would you perform only consistent backup？（）

You executed the following command in the lsnrctl utility to stop the listener： lsnrctl> STOP L1
What is the effect of this command if L1 is the only listener configured for your database？（）

You have a production instance running on your server. UNDO_RETENTION is not long enough to satisfy read-consistency requirements. How do you change the UNDO_RETENTION value？（）

In which two cases would you perform only consistent backup？（）