多項(xiàng)選擇題When a DHCP server is configured, which two IP addresses should never be assignable to hosts? （）

A.network or subnetwork IP address
B.broadcast address on the network
C.IP address leased to the LAN
D.IP address used by the interfaces
E.manually assigned address to the clients
F.designated IP address to the DHCP server


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1.單項(xiàng)選擇題

Refer to the exhibit.Explain how the routes in the table are being affected by the status change on interfaceEthernet0.（）

A.The router is poisoning the routes and multicasting the new path costs via interface Ethernet1
B.The router is receiving updates about unreachable networks from router that are connected to interface Ethernet1
C.The router is poisoning the routes and broadcasting the new path costs via interface Ethernet1
D.The router is requesting updates for these networks from routers that are connected to interface Etherne1

2.單項(xiàng)選擇題On corporate network, hosts on the same VLAN can communicate with each other, but they are unable to communicate with hosts on different VLANs. What is needed to allow communication between the VLANs?（）

A.a router with subinterfaces configured on the physical interface that is connected to the switch
B.a router with an IP address on the physical interface connected to the switch
C.a switch with an access link that is configured between the switches
D.a switch with a trunk link that is configured between the switches

3.多項(xiàng)選擇題Which of the following are key characteristics of PPP？（）

A.can be used over analog circuits
B.maps Layer 2 to Layer 3 address
C.encapsulates several routed protocols
D.supports IP only
E.provides error correction

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

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

5.多項(xiàng)選擇題Which two statements about the use of VLANs to segment a network are true? （）

A.VLANs increase the size of collision domains.
B.VLANs allow logical grouping of users by function.
C.VLANs simplify switch administration.
D.VLANs enhance network security.

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請(qǐng)參見(jiàn)圖示。公司路由器由于故障被更換。更換路由器之后，Education 辦公室內(nèi)的主機(jī)C 和D 能夠相互ping 通，但是無(wú)法訪問(wèn)Accounts 辦公室內(nèi)的主機(jī)。此問(wèn)題的原因可能是什么？（）

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請(qǐng)參見(jiàn)圖示。一臺(tái)路由器（其路由表如圖所示）收到發(fā)往192.168.1.4的數(shù)據(jù)包。路由器將如何處理該數(shù)據(jù)包？（）

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請(qǐng)參見(jiàn)圖示。一臺(tái)主機(jī)正使用NAT 連接到Internet。下列哪三項(xiàng)IP 地址可實(shí)現(xiàn)此連接？（）

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請(qǐng)參見(jiàn)圖示。電纜1和電纜2分別按照特定的物理層要求接線。哪三個(gè)網(wǎng)段使用電纜2？（）

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請(qǐng)參見(jiàn)圖示。網(wǎng)絡(luò)中的主機(jī)A 正在向主機(jī)B 發(fā)送數(shù)據(jù)段。有關(guān)所交換的數(shù)據(jù)段的流量控制如圖所示。下列關(guān)于此通信的陳述，哪兩項(xiàng)是正確的？（）

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請(qǐng)參見(jiàn)圖示。網(wǎng)絡(luò)中的所有設(shè)備均使用默認(rèn)配置。此拓?fù)渲写嬖诙嗌賯€(gè)廣播域？（）

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請(qǐng)參見(jiàn)圖示。RouterB 已經(jīng)過(guò)正確配置。RouterA 的以太網(wǎng)接口Fa0/0已使用如圖所示的命令進(jìn)行配置。但是，從RouterA 的Fa0/0接口無(wú)法成功ping 通RouterB 的Fa0/0接口。應(yīng)在RouterA 上采取什么措施來(lái)解決此問(wèn)題？（）

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