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單項(xiàng)選擇題There are no boot system commands in a router configuration in NVRAM. What is the fallback sequence that the router will use to find an IOS during reload（）。

A.TFTP server, Flash, NVRAM
B.ROM, NVRAM, TFTP server
C.NVRAM, TFTP server, ROM
D.Flash, TFTP server, ROM
E.Flash, NVRAM, ROM

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1.單項(xiàng)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(xiàng)選擇題以下哪兩個(gè)安全工具能被安裝在一個(gè)網(wǎng)絡(luò)里？（）

A.ATM
B.IDS
C.IOS
D.IOX
E.IPS
F.SDM

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3.多項(xiàng)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.

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4.單項(xiàng)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

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5.多項(xiàng)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(gè)數(shù)據(jù)包會(huì)被DENY，如果被路由到該接口上的話(huà)？（）

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

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