利用辅助平面法求圆锥与球面（锥的轴线不通过球心）的相贯线时，所作辅助平面不能（）圆锥轴线。

A、平行

B、通过

C、垂直

D、倾斜于（不过锥顶）

A system was rebooted and is taking a long time toreturn. The administrator has logged into the HMC and sees reference code 0c9. What does this mean?（）

A、The system is configuring a device.

B、A system initiated dump has started.

C、The system is varyingon a volume group.

D、The system is running an inbuilt self test.

Click the Exhibit button. In the configuration shown in the exhibit, you decided to eliminate the junos-ftp application from the match condition of the policy MyTraffic.What will happen to the existing FTP and BGPsessions?（）

A、 The existing FTP and BGP sessions will continue.

B、 The existing FTP and BGP sessions will be re-evaluated and only FTP sessions will be dropped.

C、 The existing FTP and BGP sessions will be re-evaluated and all sessions will be dropped.

D、 The existing FTP sessions will continue and only the existing BGP sessions will be dropped.

（）是由表和视图组成的、存储有关数据库结构信息的一些数据库对象，描述了实际数据是如何组织的。对它们可以像处理其他数据库表或视图一样进行查询，但不能进行任何修改。

A、数据字典

B、数据文件

C、控制文件

D、表空间

Which two statements about static NAT are true? （）(Choose two.)

Static NAT can only be used with destination NAT.

Static NAT rules take precedence over overlapping dynamic NAT rules.

NAT rules take precedence over overlapping static NAT rules.

A reverse mapping is automatically created.

什么是BA表？有何作用？