[单选]
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

You are maintaining the database of a company. The listener process， listener1， is configured for remote access. You have issued the following command： LSNRCTL>STATUS listener1 Which information will NOT be displayed when you issue the above command？（） whether the password is set in the listener or a file or not。 the number of client connections the service handler has refused。 the information will be displayed whether the instance can accept connections or not。 the protocol addresses on which the listener is configured to liste。工作压力较高的系统和环境温度较高的场合宜选用（）的液压油。粘度小。粘度大。运动速度高。承压大。 A banking customer plans to implement a BladeCenter H chassis. They plan for seven HS22 blades, six HX5 blades with MAX5, one 1U external Fibre Channel switch, and two 3U Fibre Channel storage devices with fourteen 146GB drives. Which of the following is the minimum amount of rack space required to implement the solution?（） 32U 。 25U 。 22U 。 21U。基尔霍夫定律包括两个即：节点电流定律和（） A customer is planning to implement a database server for their high volume online business. Downtime at any point represents a significant loss of revenue， so performance and high availability are extremely important.They requested a 4-way configuration with 8GB RAM and four gigabit Ethernet connections.Which of the following solutions is the most appropriate？（） x445 4-way Xeon DP machine using 16 x 512MB DIMMS， ServeRAID 6M adapter and Ultra320 15K Hard Disk drives in a RAID-1 set with an additional two BroadCom Gigabit NICs。 x366 4-way Xeon MP machine using 16 x 512MB DIMMS， ServeRAID 6M adapter and Ultra320 15K Hard Disk drives in a RAID-1 set with an additional two Intel Gigabit NICs。 x445 4-way Xeon MP machine using 16 x 512MB DIMMS， ServeRAID 6M adapter and Ultra320 15K Hard Disk drives in a RAID-1 set with an additional two BroadCom Gigabit NICs。 x445 4-way Xeon DP machine using 16 x 512MB DIMMS， ServeRAID 6M adapter and Ultra320 15K Hard Disk drives in a RAID-1 set with an additional two Intel Gigabit NIC。

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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[单选] 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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[单选]
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（）