單項(xiàng)選擇題If an Ethernet port on a router was assigned an IP address of 172.1.1.1/20,what is the maximum number of hosts allowed on this subnet?()

A.4094
B.1024
C.8190
D.2046
E.4096


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2.單項(xiàng)選擇題

根據(jù)下圖中展示的show  running-config命令的結(jié)果。網(wǎng)絡(luò)管理員該如何做才能允許工作站連接到FastEthernet0/0接口去獲得一個(gè)IP地址?()

A.在接口FastE thernet0/0應(yīng)用access-group14
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D.為接口FastE thernet0/0添加一個(gè)接口描述

3.多項(xiàng)選擇題What three pieces of information can be used in an extended access list to filter traffic (Choose three.)()。

A.protocol
B.VLAN number
C.TCP or UDP port numbers
D.source switch port number
E.source IP address and destination IP address
F.source MAC address and destination MAC address

4.單項(xiàng)選擇題Acknowldgement, Sequencing, and Flow control are characteristics of which OSI layer?()

A.Layer 2
B.Layer 3
C.Layer 4
D.Layer 5
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5.單項(xiàng)選擇題The administrator is unable to establish connectivity between two Cisco routers. Upon reviewing the command output of both routers, what is the most likely caust of the problem?()

A.Authentication needs to be changed to PAP for both routers.
B.Serial IP addresses of routers are not on the same subnet.
C.Username/password is incorrectly configured.
D.Router names are incorrectly configured.

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