Which command can be used from a PC to verify the connectivity between hosts that connect through a switch in the same LAN？（）

A.SDCCH

B.SACCH

C.FACCH

D.BCCH

A.traceroute address

B.tracert address

C.ssh address

D.telnet address

A.LOC alarm

B.Mismerge alarm

C.Forced switching command

D.Manual switching command

Regarding the extended ping command; which of the statements below are true？

(Select all valid answer choices)

A．The extended ping command is supported from user EXEC mode.

B．The extended ping command is available from privileged EXEC mode.

C．With the extended ping command you can specify the TCP and UDP port to be pinged.

D．With the extended ping command you can specify the timeout value.

E．With the extended ping command you can specify the datagram size.

A.UPDATE pets…

B.SELECT….FROM pets

C.INSERT INTO pets…

D.ALTER TABLE pets…

A.编辑命令 Edit command

B.没有命令 None command

C.透明命令Transparent command

D.绘图命令Draw command

A. traceroute address

B. tracert address

C. ssh address

D. telnet address

A.tracert address

B.ping address

C.arp address

D.traceroute address

A.It can be used to install device drivers.

B.It is a command line program.

C.It can be used to configure a system hostname and IP address.

D.It can be used to install new applications.