單項(xiàng)選擇題如果C類子網(wǎng)的掩碼為255.255.255.240,則包含的子網(wǎng)位數(shù)、子網(wǎng)數(shù)目、每個(gè)子網(wǎng)中的主機(jī)數(shù)目正確的是()。

A.2.2.2
B.3.6.30
C.4.14.14
D.5.30.6


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1.多項(xiàng)選擇題Which of the following describe the process identifier that is used to run OSPF on a router (Choose two.)()。

A.It is locally significant
B.It is globally significant
C.It is needed to identify a unique instance of an OSPF database
D.It is an optional parameter required only if multiple OSPF processes are running on the router
E.All routers in the same OSPF area must have the same process ID if they are to exchange routing information

2.多項(xiàng)選擇題Which of the following host addresses are members of networks that can be routed across the public Internet? ()

A.10.172.13.65
B.172.16.223.125
C.172.64.12.29
D.192.168.23.252
E.198.234.12.95
F.212.193.48.254

4.多項(xiàng)選擇題An administrator would like to configure a switch over a virtual terminal connection from locations outside of the local LAN. Which of the following are required in order for the switch to be configured from a remote location? ()

A.The switch must be configured with an IP address, subnet mask, and default gateway.
B.The switch must be connected to a router over a VLAN trunk.
C.The switch must be reachable through a port connected to its management VLAN.
D.The switch console port must be connected to the Ethernet LAN.
E.The switch management VLAN must be created and have a membership of at least one switch

5.單項(xiàng)選擇題TCP、UDP、SPX屬于OSI的()。

A.網(wǎng)絡(luò)層
B.傳輸層
C.會(huì)話層
D.表示層

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請(qǐng)參見(jiàn)圖示。對(duì)于從主機(jī)A 向Web 服務(wù)器發(fā)出的網(wǎng)頁(yè)請(qǐng)求,正確的目的套接字?jǐn)?shù)字是什么?()

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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?()

題型:多項(xiàng)選擇題

請(qǐng)參見(jiàn)圖示。主機(jī)A 嘗試與主機(jī)C 建立TCP/IP 會(huì)話。在嘗試期間,路由器Y 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172.16.1.5而目的IP 地址為172.16.7.24的數(shù)據(jù)包。捕獲該幀時(shí),它的源MAC 地址是什么?()

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請(qǐng)參見(jiàn)圖示。主機(jī)X 和主機(jī)Y 與本地網(wǎng)絡(luò)的通信受到限制。此問(wèn)題的原因是什么?()

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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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在路由器上使用Router#copy running-config startup-config 命令會(huì)產(chǎn)生什么效果?()

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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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以下哪兩種介質(zhì)可提供高達(dá)1Gb/s 的帶寬?()

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OSI 模型的哪兩項(xiàng)功能在第2層實(shí)現(xiàn)?()

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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?()

題型:?jiǎn)雾?xiàng)選擇題