(61) A.23

　　B.80

　　C.125

　　D.21

　　(62) A.同一個

　　B.順序的

　　C.有關的

　　D.無關的

　　(63) A.面向事務的

　　B.面向連接的

　　C.面向用戶的

　　D.面向應用的

　　(64) A.加強了完整性B 增加了功能

　　C.增加了安全機制D 增加了交互能力

　　●DNS的作用是 (65) 。

　　(65) A.為客戶機分配IP地址

　　B.訪問HTTP的應用程序

　　C.將計算機名翻譯為IP地址

　　D.將MAC地址翻譯為IP地址

　　●For each blank，choose the best answer from the four choices and write down on the answer sheet.

　　(66) is a six bytes OSI layer 2 address which is burned into every networking device that provides its unique identity for point to point communication.

　　(67) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.

　　(68) functions with two layers of protocols.It Can connect networks of different speeds and can be adapted to an environment as it expands.

　　(69) is the popular LAN developed under the direction of the IEEE 802.5.

　　(70) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.

　　(66) A.The MAC address

　　B.The IP address

　　C.The subnet address

　　D.The virtual address

　　(67) A.ISO

　　B.ANSI

　　C.CCITT

　　D.IEEE

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