單項(xiàng)選擇題

Which statement is true regarding checkpoints and recovery？（）

A.A checkpoint defines the highest system change number （SCN）.
B.All redo entries higher or at the SCN are known to be written to the data files.
C.Only the redo records containing SCNs higher then the checkpoint need to be applied during recovery.
D.The LOG_CHECKPOINT_INTERVAL initialization parameter specifies the amount of time between incremental checkpoints.

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單項(xiàng)選擇題

In user-managed backup and recover procedures， how are data files backed up？（）

A.Using SQL commands.
B.Using SQL*Plus commands.
C.Using operating system commands.
D.Using Recover Manager commands.

單項(xiàng)選擇題

To increase the availability of an Advanced Replication environment， you can add a new master to a replication group without quiescing the group. This is achieved（）.

A.Only when the new master site already has existing replication groups.
B.By issuing a single command to create, populate, and activate the new master.
C.When the master definition site is not the same for all of the master groups.
D.Without impacting end users who are executing data manipulation language (DML) commands on the replicated tables.

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Which statement is true regarding checkpoints and recovery？（）

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In user-managed backup and recover procedures， how are data files backed up？ （）

To increase the availability of an Advanced Replication environment， you can add a new master to a replication group without quiescing the group. This is achieved（）.

Which statement is true regarding checkpoints and recovery？（）

In user-managed backup and recover procedures， how are data files backed up？（）

To increase the availability of an Advanced Replication environment， you can add a new master to a replication group without quiescing the group. This is achieved（）.