网友您好, 请在下方输入框内输入要搜索的题目:
●For each blank,choose the best answer from the four choices and write down on the answer sheet.
(66) is a protocol that a host uses to inform. a router when it joins or leaves an Internet multicast group.
(67) is an error detection code that most data communication networks use.
(68) is an interior gateway protocol that uses a distance vector algorithm to propagate routing information.
(69) is a transfer mode in which all types of information are organized into fixed form. cells on an asynchronous or non-periodic basis over a range of media.
(70) is an identifier of a web page.
(66) A.SMTP
B.ICMP
C.RARP
D.IGMP
(67) A.4B/SB
B.CRC
C.Manchester Code
D.Huffman Code
(68) A.OSPF
B.RIP
C.RARP
D.BGP
(69) A.ADSL
B.ATM
C.Frame. Relay
D.DDN
(70) A.HTTP
B.URL
C.HTML
D.TAG
参考答案