You need to change the hostname and IP address of a server. Without manually editing all of the required files， which command can be run to restore a system configuration to an unconfigured state， ready to be reconfigured again restore a system configuration to an unconfigured state， ready to be reconfigured again？ （）

A、 /usr/sbin/sys-unconfig

B、 /usr/sbin/unconfig

C、 /sbin/ipconfig

D、 /usr/sbin/set_parms initial

SDRAM上有多少个针脚？（）

A、32

B、64

C、72

D、168

View the Exhibit and examine the initialization parameter settings. Which three initialization parameters are to be set manually as they are not automatically tuned（）

LOG_BUFFER

SORT_AREA_SIZE

JAVA_POOL_SIZE

STREAMS_POOL_SIZE

DB_16K_CACHE_SIZE

DB_KEEP_CACHE_SIZE

Which two statements about subnet masks are true?（）

If a bit is turned on (1), the corresponding bit in the IP address is used for the host portion.

If a bit is turned off (0), the corresponding bit in the IP address is used for the host portion.

If a bit is turned on (1), the corresponding bit in the IP address is used for the network prefix.

If a bit is turned off (0), the corresponding bit in the IP address is used for the network prefix.

在PowerPoint2003普通视图下包括大纲编辑区、幻灯片编辑区、（）和其他任务窗格四个部分。

A、备注编辑区

B、动画预览区

C、幻灯片浏览区

D、幻灯片放映区

Which two statements are correct regarding default protocol preference values?（）

OSPF has a single preference value for both internal and external routes.

RIP is preferred over OSPF external routes.

Direct, local, and static routes have the same preference value.

OSPF's preference value is lower than BGP (both IBGP and EBGP).