A receiving host has failed to receive all of the segments that it should acknowledge.

What can the host do to improve the reliability of this communication session?

A．Start a new session using UDP

B．Obtain a new IP address from the DHCP server

C．Use a different source port for the session

D．Decrease the sequence number

E．Decrease the window size

以下哪项是距离矢量的特点之一（）

A.它们不会计数到无穷大

B.可以工作在大型网络中

C.不会引起路由环路

D.算法简单

配置路由器特权用户“加密密码”的命令是：()

A.password

B.enable password

C.enable secret

D.passwd

In the Ezonexam switched LAN environment, what does the IEEE 802.1Q standard describe?

A. VLAN pruning

B. A method of VLAN trunking

C. An approach to wireless LAN communication

D. The operation of VTP

E. The process for root bridge selection

F. None of the above

属于私有IP段的是()

A.10.0.0.0-10.255.255.255

B.172.16.0.0-172.31.255.255

C.202.110.100.0-202.110.100.255

D.192.168.0.0-192.168.255.255

E.126.0.0.0-126.255.255.255