單項(xiàng)選擇題

Your database is open and the LISTENER listener is running. The new DBA of the system stops the listener byusing the command：LSNRCTL> STOP
What happens to the sessions that are presently connected to the database instance（）

A.The sessions are able to perform only queries.
B.The sessions are not affected and continue to function normally.
C.The sessions are terminated and the active transactions are rolled back.
D.The sessions are not allowed to perform any operations till the listener is started

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單項(xiàng)選擇題

You have two tables with referential integrity enforced between them. You need to insert data to the child tablefirst because it is going to be a long transaction and data for the parent table will be available in a later stage，which can be inserted as part of the same transaction. View the Exhibit to examine the commands used tocreate tables.
Which action would you take to delay the referential integrity checking until the end of thetransaction（）

A.Set the constraint to deferred before starting the transaction.
B.Alter the constraint to NOVALIDATE state before starting the transaction.
C.Enable the resumable mode for the session before starting the transaction.
D.Set the COMMIT_WAIT parameter to FORCE_WAIT for the session before starting the transaction

單項(xiàng)選擇題

View the Exhibit to examine the output produced by the following query at three different times since thedatabase instance started and has experienced workloads of different capacities：SQL> SELECT substr（component， 0， 10） COMP， current_size CS， user_specified_size US FROM v$memory_dynamic_componentsWHERE current_size!=0；What do you infer from this（）

A.The database instance is running with manual PGA management.
B.The database instance is running with manual shared memory management.
C.The database instance has the MEMORY_TARGET value set to a nonzero value.
D.All sessions are connected to the database instance in dedicated mode， and no RMAN or parallel queryoperations have been performed

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Your database is open and the LISTENER listener is running. The new DBA of the system stops the listener byusing the command：LSNRCTL> STOP What happens to the sessions that are presently connected to the database instance（）

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Your database is open and the LISTENER listener is running. The new DBA of the system stops the listener byusing the command：LSNRCTL> STOP
What happens to the sessions that are presently connected to the database instance（）