單項(xiàng)選擇題哪個(gè)路由協(xié)議默認(rèn)用帶寬和延遲作為metrics值?()

A.RIP
B.BGP
C.OSPF
D.EIGRP


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1.多項(xiàng)選擇題Which can be done to secure the virtual terminal interfaces on a router?()

A.Administratively shut down the interfaces.
B.Physically secure the interfaces.
C.Configure a virtual terminal password and login process.
D.Enter an access list and apply it to the terminal interfaces using the access-class command.
E.Create an access list and apply it to the terminal interfaces using the access-groupc ommand.

2.多項(xiàng)選擇題At which layers of the OSI model do WANs operate (Choose two.)()。

A.application layer
B.session layer
C.transport layer
D.network layer
E.datalink layer
F.physical layer

3.單項(xiàng)選擇題Which statement is correct regarding the operation of DHCP?()

A.A DHCP client uses a ping to detect address conflicts.
B.A DHCP server uses a gratuitous ARP to detect DHCP clients.
C.A DHCP client uses a gratuitous ARP to detect a DHCP server.
D.If an address conflict is detected, the address is removed from the pool and an administrator must resolve the conflict.
E.If an address conflict is detected, the address removed from the pool for an amount of time configurable by the administrator.
F.If an address conflict is detected, the address is removed from the pool and will not be reused until server is rebooted.

4.單項(xiàng)選擇題

根據(jù)下圖,哪個(gè)選項(xiàng)描述了DLCI 17?()

A.DLCI 17描述了R2和R3之間的ISDN線路
B.DLCI 17描述了一條在R2上的PVC 不能用在R3和R1上
C.DLCI 17是R2使用的二層地址,用來(lái)描述一條到R3的PVC
D.DlDLCI 17描述了一條從R2 R3到服務(wù)提供商撥號(hào)網(wǎng)絡(luò)

5.多項(xiàng)選擇題Why does the data communication industry use the layered OSI reference model (Choose two.)()。

A.It divides the network communication process into smaller and simpler components, thus aiding component development, design, and troubleshooting.
B.It enables equipment from different vendors to use the same electronic components, thus saving research and development funds.
C.It supports theevolution of multiple competing standards, and thus provides business opportunities for equipment manufacturers.
D.It encourages industry standardization by defining what functions occur at each layer of the model.
E.It provides a means by which changes in functionality in one layer require changes in other layers.

最新試題

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在Cisco IOS 設(shè)備中,啟動(dòng)配置文件存儲(chǔ)于何處?()

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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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在配置路由器時(shí),網(wǎng)絡(luò)技術(shù)人員想要命名路由器。輸入hostname 命令后,技術(shù)人員會(huì)看到下列哪一項(xiàng)提示?()

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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。下列哪組設(shè)備僅包含中間設(shè)備?()

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OSI 哪一層可提供有序的數(shù)據(jù)重構(gòu)服務(wù)?()

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何時(shí)必須使用clock rate 命令配置路由器串行接口?()

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請(qǐng)參見(jiàn)圖示。主機(jī)B 嘗試與主機(jī)C 建立TCP/IP 會(huì)話。在嘗試期間,San Francisco 器由器的FastEthernet 接口fa0/1捕獲到一個(gè)幀。捕獲的幀中包含源IP 地址為10.10.1.2而目的IP 地址為10.31.1.20的數(shù)據(jù)包。捕獲該幀時(shí),它的目的MAC 地址是什么?()

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路由器使用哪一項(xiàng)信息來(lái)確定源主機(jī)和目的主機(jī)之間的路徑?()

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