A. service timestamps debug datetime msecB. show clock ……

单项选择题On which options are standard access list based?（）

A. source address and subnet mask
B. destination address and wildcard mask
C. source address and wildcard mask
D. destination address and subnet mask

单项选择题A network administrator needs to configure a serial link between the main office and a remote location.The router at the remote office is a non-cisco router. How should the network administrator configure the serial interface of the main office router to make the connection?（）

A. Main(config)#interface serial 0/0  Main(config-if)#ip address 172.16.1.1 255.255.255.252  Main(config-if)#no shut
B. Main(config)#interface serial 0/0  Main(config-if)#ip address 172.16.1.1 255.255.255.252  Main(config-if)#encapsulation ietf Main(config-if)#no shut
C. Main(config)#interface serial 0/0  Main(config-if)#ip address 172.16.1.1 255.255.255.252  Main(config-if)#encapsulation frame-relay  Main(config-if)#authenication chap Main(config-if)#no shut
D. Main(config)#interface serial 0/0  Main(config-if)#ip address 172.16.1.1 255.255.255.252   Main(config-if)#encapsulation ppp Main(config-if)#no shut

单项选择题What is the result of issuing the frame-relay map ip 192.168.1.2 202 broadcast command?（）

A. defines the source IP address that i s used in all broadcast packets on DLCI 202
B. defines the DLCI that is used for all packets that are sent to the 192.168.1.2 IP address
C. defines the destination IP address that is used in all broadcast packets on DLCI 202
D. defines the DLCI on which packets from the 192.168.1.2 IP address are received

单项选择题How are VTP advertisements delivered to switches across the network?（）

A. anycast frames
B. multicast frames
C. broadcast frames
D. unicast frames

单项选择题Which pairing reflects a correct protocol-and-metric relationship?（）

A. OSPF and mumber of hops and reliability
B. EIGRP and link cost
C. IS-IS and delay and reliability
D. RIPv2 and number of hops