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多項選擇題 根據(jù)下圖，WLANdiagram決定了哪兩個事實？（）

A.兩個cells的overlap的區(qū)域描述了一個basic service set
B.網(wǎng)絡(luò)描述了一個extended service set
C.再每個CELL中的AP必須被配置成使用channel 1
D.為了確保連通性，重疊區(qū)域必須小于10%
E.兩個訪問點應該被配置成工作在不同的頻道

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1.單項選擇題Which statement is true，as relates to classful or classless routing？（）

A.RIPV1 and OSPF are classless routing protocols.
B.Classful routing protocols send the subnet mask in routing updates.
C.Automatic summarization at classful boundaries can cause problems on disc……
D.EIGRP and OSPF are classful routing protocols and summarize routes by def……

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2.單項選擇題 根據(jù)下圖，圖中的拓撲中存在多少個廣播域？（）

A.1
B.2
C.3
D.4
E.5
F.6

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3.單項選擇題What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology？（）

A.lowest port MAC address
B.port priority number and MAC address
C.VTP revision number
D.highest port priority number
E.path cost

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4.單項選擇題In which solution is a router ACL used？（）

A.protecting a server frome unauthorized acces
B.controlling path selection，based on the route metric
C.reducing router CPU utilization
D.filterring packets that are passing through a router

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5.單項選擇題Assuming default setting，how can you erase the VTP data base of VLANs on a CISCO IOS switch running in VTP server mode？（）

A.Enable VTP pruning
B.From privileged mode，erase the startup configuration file，then reload.
C.From privileged mode，erase the vlandate file，then reload.
D.Cycle the switch power.

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