第
46題: 
	在IPv4向IPv6的過渡期間,如果要使得兩個IPv6節(jié)點可以通過現(xiàn)有的IPv4網(wǎng)絡進行通信,則該使用 (1) ;如果要使得純IPv6節(jié)點可以與純IPv4節(jié)點進行通信,則需要使用 (2) 。
(1)
A.堆棧技術(shù)
B.雙協(xié)議棧技術(shù)
C.隧道技術(shù)
D.翻譯技術(shù)
(2)
A.堆棧技術(shù)
B.雙協(xié)議棧技術(shù)
C.隧道技術(shù)
D.翻譯技術(shù)
	  
答案解析與討論:
www.yifanwine.com/st/2376927349.html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.yifanwine.com/st/2377011837.html第
48題: POP3協(xié)議采用(1)模式進行通信,當客戶機需要服務時,客戶端軟件與POP3服務器建立 (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.yifanwine.com/st/237711708.html第
50題: 
	IEEE 802.11標準采用的工作頻段是 (1) ,下列標準中采用雙頻工作模式的是 (2) 。
(1)A.900MHz和800MHz
B.900MHz和2.4GHz
C.5GHz和800MHz
D.2.4GHz和5GHz
(2)A.IEEE802.11a
B.IEEE802.11b
C.IEEE802.11g
D.IEEE802.11n
答案解析與討論:
www.yifanwine.com/st/2377312061.html第
51題: 
	PC機不能接入因特網(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PC機的IP地址為(1),默認網(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服務器工作不正常
	
答案解析與討論:
www.yifanwine.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.yifanwine.com/st/2377516881.html