點(diǎn)擊查看：2015軟考《網(wǎng)絡(luò )工程師》鞏固練習題匯總

　　在因特網(wǎng)的路由選擇協(xié)議中，屬于外部網(wǎng)絡(luò )協(xié)議的是_(1)_，按固定時(shí)間間隔和相鄰路由器交換路由表 信息的協(xié)議是_(2)_。該協(xié)議最大特點(diǎn)是_(3)_，它使用_(4)_傳輸信息。此協(xié)議報文最大長(cháng)度、最多可包括 的路由數和最大距離分別是_(5)_。

　　(1)

　　A.IGP

　　B.RIP

　　C.OSPF

　　D.BGP

　　(2)

　　A.RIP

　　B.OSPF

　　C.IGP

　　D.EGP

　　(3)

　　A.功能強大

　　B.可用于大規模網(wǎng)絡(luò )

　　C.實(shí)現簡(jiǎn)單，開(kāi)銷(xiāo)小

　　D.故障率低

　　(4)

　　A.TCP

　　B.UDP

　　C.IP 層

　　D.應用層

　　(5)

　　A.504 25 15

　　B.1500 25 16

　　C.504 32 15

　　D.1500 25 8

　　Flow control is a function that prevents network congestion by ensuring that _(6)_ do not overwhelm_(7)_ with data. There are three commonly used methods for handling network congestion . _(8)_is used by network devices to temporarily store bursts of excess data in memory until they can be processed. _(9)_ are used by receiving devices to help prevent their buffers from overflowing . _(10)_ is a flow-control scheme in which the source device requires an acknowledgment from the destination after a certain number of packets have been transmitted.

　　(6)(7)

　　A.transmitting devices

　　B.transmitted devices

　　C.receiving devices

　　D.received devices

　　(8)(9)(10)

　　A.Buffer

　　B.Source-quench messages

　　C.window

　　D.Windowing

　　E.Buffering

　　答案：1-5 DACBA 6-10 ACEBD

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