99色精品-9色在线-99色在线-99色视频 国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

單項(xiàng)選擇題

Your database is open and the LISTENER listener is running. The new DBA of the system stops thelistener by using 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.

微信掃碼免費(fèi)搜題