A.True

B.False

A.support Main/Standby Switchover

B.forwarding PVMB to VoIP business, through the FE/GE ports or GE electricity light ports to realize IP upward.

C.IPMB is IP service processing board for aggregation, processing of broadband services

D.provide 8 GE optical ports as an uplink port

A.DC function's operator has two: resource management, physical view

B.NMS server as FTP/TFTP Server must start FTP/TFTP Service

C.DC function includes save and restore the device configuration file and image program

D.When do the "configuring network management FTP/TFTP parameter" configuration operation on the NMS, the default IP and alternatives IP should be the IP address of network management server

A.True

B.False

A.ICMP Echo Request packet

B.ICMP timestamp request packet

C.ICMP Echo Reply packet

D.ICMP address mask request packet