第
47題: 以太網(wǎng)鏈路聚合技術(shù)是將 ( )。
A.多個邏輯鏈路聚合成一個物理鏈路
B.多個邏輯鏈路聚合成一個邏輯鏈路
C.多個物理鏈路聚合成一個物理鏈路
D.多個物理鏈路聚合成一個邏輯鏈路
答案解析與討論:
www.jycxcx.com/st/2377011837.html第
48題: POP3協(xié)議采用(1)模式進(jìn)行通信,當(dāng)客戶機(jī)需要服務(wù)時,客戶端軟件與POP3服務(wù)器建立 (2) 連接。
(1)
A.Browser
B.Client/Server
C.Peer to Peer
D.peer to Server
(2)
A.TCP
B.UDP
C.PHP
D.IP
答案解析與討論:
www.jycxcx.com/st/237711708.html第
49題: TCP協(xié)議使用(1)次握手過程建立連接,這中方法可以防止 (2) ,TCP使用的流量控制協(xié)議是 (3)。
(1)
A.一
B.二
C.三
D.四
(2)
A.出現(xiàn)半連接
B.出現(xiàn)錯誤連接
C.假冒的連接
D.無法連接
(3)
A.固定大小的滑動窗口協(xié)議
B.可變大小的滑動窗口協(xié)議
C.后退N幀ARQ協(xié)議
D.選擇性重發(fā)ARQ協(xié)議
答案解析與討論:
www.jycxcx.com/st/237726977.html第
51題:
PC機(jī)不能接入因特網(wǎng),這時采用抓包工具捕獲的以太網(wǎng)接口發(fā)出的信息如下:

可以看出該P(yáng)C機(jī)的IP地址為(1),默認(rèn)網(wǎng)關(guān)的IP地址為 (2) ,PC不能接入Internet的原因可能是 (3) 。
(1)A.213.127.115.31
B.213.127.115.255
C.213.127.115.254
D.224.1.1.1
(2)A.213.127.115.31
B.213.127.115.255
C.213.127.115.254
D.224.1.1.1
(3)A.DNS解析錯誤
B.TCP/IP協(xié)議安裝錯誤
C.不能連接到網(wǎng)關(guān)
D.DHCP服務(wù)器工作不正常
答案解析與討論:
www.jycxcx.com/st/2377428153.html第
52題: Thede facto standard Application Program Interface (API) for TCP/IP applicationsis the “sockets” interface. Although this API was developed for (1) in the early 1960s it has also been implemented on a widevariety of no-Unix systems. TCP/IP (2) Writtenusing the sockets API have in the past enjoyed a high degree of portability andwe would like the same (3) with IPv6applications. But changes are required to the sockets API to support IPv6 andthis memo describes these changes. These include a new socket address structureto carry IPv6 (4) ,new address conversion functions,and some new socket options. These extensions are designed to provide access tothe basic IPv6 features requited by TCP and UDP applications, includingmulticasting, while introducing a minimums of change into the system and providingcomplete (5) for existing IPv4 applications.
(1)A.Windows
B.Linux
C.Unix
D.DOS
(2)A.a(chǎn)pplications
B.networks
C.protocols
D.systems
(3)A.portability
B.a(chǎn)vailability
C.calability
D.reliability
(4)A.connections
B.protocols
C.networks
D.a(chǎn)ddress
(5)A.a(chǎn)vailability
B.compatibility
C.capability
D.reliability
答案解析與討論:
www.jycxcx.com/st/2377516881.html