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多項選擇題 所顯示的輸出在一個交換機被產(chǎn)生。哪三種表述是正確的？（）

A.所有端口都將在丟棄，學習，或轉(zhuǎn)發(fā)的狀態(tài)
B.Thiry VLAN是否該交換機上的配置
C.網(wǎng)橋優(yōu)先級比生成樹的默認值
D.所顯示的所有接口都在共享媒體
E.所有指定端口都處于轉(zhuǎn)發(fā)狀態(tài)
F.開關(guān)必須是該交換機上的所有VLAN的根橋

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1.多項選擇題哪個兩個命令正確驗證是否端口快速以太網(wǎng)0/12端口安全性已配置的交換機？（）

A. SW1#show swithport port-security interface FastEthernet 0/12
B. SW1# show swithport port-secure interface FastEthernet 0/12
C. SW1# show port-secure interface FastEthernet 0/12
D. SW1#show running-config
E. SW1#show port-security interface FastEthernet 0/12

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2.多項選擇題哪個可以做，以確保虛擬終端接口的路由器上？（）

A.手動關(guān)閉的接口。
B.物理安全的接口。
C.配置虛擬終端的密碼和登錄過程。
D.輸入一個訪問列表，并將其應用到使用access-class命令終端接口。
E.創(chuàng)建一個訪問列表，并將其應用到使用access-group命令終端接口。

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3.多項選擇題 Refer to the exhibit.The network shown in the exhibit is running the RIPv2 routing protocol.The network has converged，and the routers in this network are functioning properly .The FastEthernet0/0 interface on R1 goes down.In which two ways will the routers in this network respond to this change？（）

A.R1 will send LSAs to R2 and R3 informing them of this change， and then all routers will send periodic updates at an increased rate until the network again converges.
B.Because of the split-horizon rule， router R2 will be prevented from sending erroneous information to R1 about connectivity to the 192.168.1.0 network.
C.When router R2 learns from R1 that the link to the 192.168.1.0 network has been lost， R2 will respond by sending a route back to R1 with an infinite metric to the network.
D.Routers R2 and R3 mark the route as inaccessible and will not accept any further routing updates from R1 until their hold-down timers expire.
E.All routers will reference their topology database to determine if any backup routes to the 192.168.1.0 network are known.

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4.多項選擇題網(wǎng)絡管理員是Cisco路由器上配置訪問控制列表，允許來自只的網(wǎng)絡192.168.146.0，192.168.147.0，192.168.148.0和192.168.149.0主機。哪個結(jié)合是最好的完成任務，當兩個ACL語句？（）

A. access-list 10 permit ip 192.168.147.0 0.0.0.255.255
B. access-list 10 permit ip 192.168.149.0 0.0.0.255.255
C. access-list 10 permit ip 192.168.146.0 0.0.0.0.255
D. access-list 10 permit ip 192.168.146.0 0.0.0.1.255
E. access-list 10 permit ip 192.168.148.0 0.0.0.1.255
F. access-list 10 permit ip 192.168.146.0 255.255.255.0

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5.單項選擇題哪個選項代表了標準的IP ACL？（）

A. access-list 50 deny 192.168.1.1 0.0.0.255
B. access-list 110 permit ip any any
C. access-list 2500 deny tcp any host 192.168.1.1 eq 22
D. access-list 101 deny tcp any host 192.168.1.1

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6.多項選擇題下列哪三種說法對802.1Q的說法是正確的？（）

A.802.1Q本地VLAN幀未標記的默認
B.802.1Q中繼端口，也可以是安全的端口
C.802.1Q中繼可以使用10Mb/s以太網(wǎng)接口
D.802.1Q中繼需要全雙工，點對點連接
E.802.1Q中繼應該兩頭的本地VLAN是相同的

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7.單項選擇題有關(guān)訪問列表應用到一個接口，下列哪項是正確的的？（）

A.你可以申請多個訪問列表具有相同的協(xié)議，或在不同的方向
B.你可以配置一個訪問列表，每個方向，每3層協(xié)議（一個端口可以配置In out兩個ACL）
C.你想要的任何界面上，你可以放置盡可能多的訪問列表
D.你可以將任何接口上只有一個訪問列表

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8.單項選擇題 Refer to the exhibit.A problem with network connectivity has been observed.It is suspected that the cable connected to switch port Fa0/9 on Switch 1 disconnected.What would be an effect of tis cable being disconnected？（）

A.Host B would not be able to access the server in VLAN9 until the cable is reconnected
B.For less than a minute,Host B would not be able to access the server in VLAN9.Then normal network function would resume.
C.Communication between VLAN3 and the other VLANs would be disabled
D.The transfer of files from Host B to the server in VLAN9 would be significantly slower.

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9.單項選擇題 圖中顯示了多少個廣播域？（）

A.one
B.six
C.twelve
D.two

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10.多項選擇題靜態(tài)NAT轉(zhuǎn)換哪兩種說法是正確的？（）

A.出現(xiàn)在NAT表中。
B.允許來自外部的鏈接。
C.它們可以與訪問列表來配置，以允許兩個或多個連接到從發(fā)起外面。
D.他們不需要內(nèi)部或外部接口標記，因為地址是靜態(tài)定義。

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