A network admin wants to know every hop the packets take when he accesses cisco.com. Which command is the most appropriate to use?()
A. path cisco.com
B. debug cisco.com
C. trace cisco.com
D. traceroute cisco.com
whichcommandisusedtoenableCHAPauthenticationwhitPAPasthefallbackmethodonaserialinterface?()
A. (config-if)#authenticationpppchapfallbackppp
B. (config-if)#authenticationpppchappap
C. (config-if)#pppauthenticationchappap
D. (config-if)#pppauthenticationchapfallbackppp
实施ACL时应注意的问题()
A. 默认拒绝所有流量
B. 不需要配置到具体端口
C. 过滤方向
D. 语句的次序
Which option is a valid IPv6 address?()
A. 2001:0000:130F::099a::12a
B. 2002:7654:A1AD:61:81AF:CCC1
C. FEC0:ABCD:WXYZ:0067::2A4
D. 2004:1:25A4:886F::1