單項選擇題Which type of EIGRP route entry describes a feasible successor?（）

A.a primary route,stored in the routing table
B.a backup route,stored in the routing table
C.a backup route,stored in the topology table
D.a primary route,stored in the topology table


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2.多項選擇題What are some of the advantages of using a router to segment the network (Choose two.)（）。

A.Filtering can occur based on Layer 3 information.
B.Broadcasts are eliminated.
C.Routers generally cost less than switches.
D.Broadcasts are not forwarded across the router.
E.Adding a router to the network decreases latency.

3.單項選擇題Which dose the frame-relay interface-dlci command configure？（）

A.remote DLCI on the main interface
B.local DLCI on the main interface
C.local DLCI on the subinterface
D.remote DLCI on the subinterface

4.多項選擇題

根據(jù)下圖，該access list被配置在路由器RTB的S0/0接口上的OUT方向，哪兩個數(shù)據(jù)包會被DENY，如果被路由到該接口上的話？（）

A.source ip address：192.168.15.5 destination port：21
B.source ip address：192.168.15.37 destination port：21
C.ssource ip address192.168.15.41 destination port：21
D.source ip address：192.168.15.36 destination port：23
E.source ip address：192.168.15.46 destination port：23
F.source ip address：192.168.15.49 destination port：23

5.單項選擇題An administrator issues the command ping 127.0.0.1 from the command line prompt on a PC. If a reply is received, what does this confirm（）。

A.The PC has connectivity with a local host.
B.The PC has connectivity with a Layer 3 device.
C.The PC has a default gateway correctly configured.
D.The PC has connectivity up to Layer 5 of the OSI model.
E.The PC has the TCP/IP protocol stack correctly installed.