QUESTION 119 以下那条命令可以开启路由器接口的DHCP中继功能（）

A . display B . show C . pwd D . check

A . [Router]ipfast-forwardingenable B . [Router]ipfast-forwardinginbound C . [Router-Ethernet0/1]ipfast-forwardingenable D . [Router-Ethernet0/1]ipfast-forwardinginbound

A . Tracert B . nslookup C . telnet D . whoami

A . A.[Router]dhcp B . B.[Router-dhcp-pool-0]dhcp C . C.[Router]dhcpenable D . D.[Router-dhcp-pool-0]dhcpenable

A . display iprouting-table B . display iprouting-table vpn-instance vpna C . display bgp vpnv4 all routing D . display bgp vpnv4 all routing vpn-instance vpna

A . snmp-server community B . snmp-server enable C . snmp-server log D . snmp-server host

A . show running-config B . show flash C . show version D . show startup-config

A . DPWSP B . PTWSP C . PLLDP D . DPPAI

A . Traceroute B . Whois C . Nslookup D . Portscanner

A . A、up B . B、open C . C、noshutdown D . D、shutdown

A . delete B . rm C . rename D . copy

A . display bgp community B . display bgp routing-tablecommunity C . display bgp peer D . display bgp routing-table peer X.X.X.X received-routes

A . CREATERSUDB B . CREATERSUSWLH C . SETBACKNEWBSCOSUSW D . SETBSCOSUSW

A . SAV CBTSCFG B . ADD CBTSCFG C . SET BSCBTSINF D . MOD CBTSCFG

A . [RTB-Ethernet0/0]vrrpvrid1priority200 B . [RTB-Ethernet0/0]vrrpvrid1virtual-ip10.1.1.254priority200 C . [RTB-Ethernet0/0]vrrpvrid1force-master D . [RTB]vrrpvrid1force-master

A．SETCFGDATAINEFFECTIVE B．SETCMCTRLSW C．SETPSCELLTODSP D．SETGCELLFREQSCAN

A．isplay cpu-state B．isplay interface C．isplay memory D．isplay cpu-usage 此题为多项选择题。

A．dhcp select server B．dhcp select global C．dhcp select interface D．dhcp select relay

A．display ip interface brief B．display pppoe-client session packet C．display pppoe-client session summary D．display current-configuration

A．SDRAM B．NVRAM C．Flash D．Hard Disk E．SD Card

A．A.request system load filename B．B.request system software add filename C．C.load software filename D．D.load upgrade filename

A．A.在PSBC上执行DSPUSRINF B．B.在CSCF上执行EXPUSRINF C．C.在ATS990上执行DSPMUSRINFO D．D.在CSCF上执行DSPUSRINF

A．display ip interface brief B．display pppoe-client session packet C．display pppoe-client session summary D．display current-configuration