單項(xiàng)選擇題Which of the following protocols uses both TCP and UDP ports?()

A.SMTP
B.Telnet
C.FTP
D.DNS


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2.多項(xiàng)選擇題Which two statements are characteristics of a distance vector routing protocol?()

A.RIP is an example of distance vector routing protocols
B.Updates are periodic and include the entire routing table
C.Routing updates are sent only after topology changes
D.The protocol can be useful in hub-and-spoke and hierarchical networks
E.Convergence is usually faster than with link state protocols
F.Each router has its own view of the topology

3.多項(xiàng)選擇題What are three valid reasons to assign ports to VLANs on a switch?()

A.to make VTP easier to implement
B.to isolate broadcast traffic
C.to increase the size of the collision domain
D.to allow more devices to connect to the network
E.to logically group hosts according to function
F.to increase network security

5.單項(xiàng)選擇題Which command enhances the 802.1D convergence time on ports that are connected to hosts?()

A.spanning-tree backbonefast
B.spanning-tree uplinkfast
C.spanning-tree portfast
D.spanning-tree cost512

最新試題

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?()

題型:?jiǎn)雾?xiàng)選擇題

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

請(qǐng)參見(jiàn)圖示。下列哪組設(shè)備僅包含中間設(shè)備?()

題型:?jiǎn)雾?xiàng)選擇題

傳輸層如何讓主機(jī)能同時(shí)針對(duì)不同應(yīng)用程序維護(hù)多個(gè)通信流?()

題型:?jiǎn)雾?xiàng)選擇題

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?()

題型:?jiǎn)雾?xiàng)選擇題

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)渲行枰嗌賯€(gè)邏輯地址范圍?()

題型:?jiǎn)雾?xiàng)選擇題

請(qǐng)參見(jiàn)圖示。網(wǎng)絡(luò)技術(shù)人員使用圖中所示的連接將主機(jī)A 連接到路由器以創(chuàng)建初始配置。下列有關(guān)此連接的陳述中哪一項(xiàng)正確?()

題型:?jiǎn)雾?xiàng)選擇題

請(qǐng)參見(jiàn)圖示。哪種邏輯拓?fù)涫菍?duì)圖示網(wǎng)絡(luò)的準(zhǔn)確描述?()

題型:?jiǎn)雾?xiàng)選擇題

要將數(shù)據(jù)包發(fā)送到遠(yuǎn)程網(wǎng)絡(luò),應(yīng)使用哪種設(shè)備?()

題型:?jiǎn)雾?xiàng)選擇題

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

題型:多項(xiàng)選擇題