31. Which of the following device is used with an X.25 network to provide service to asynchronous terminals

A. repeater
B. bridges
C. gateway
D. Packet assembler/disassemble
E. None of the above


Correct Answer: D. Packet assembler/disassemble

32. A medium access control technique for multiple access transmission media is

A. Aloha
B. Amplitude
C. Angle modulation
D. Attenuation
E. None of the above


Correct Answer: A. Aloha

33. The core diameter of a single-mode fibers is about

A. 10 times the wavelength of the light carried in the fiber
B. 10 times the fiber radius
C. 7 times the light carried in the fiber
D. 3 times the wavelength of the light carried in the fiber
E. None of the above


Correct Answer: A. 10 times the wavelength of the light carried in the fiber

34. Which of the following TCP/IP protocol is used for remote terminal connection service?

A. TELNET
B. FTP
C. RARP
D. UDP
E. None of the above


Correct Answer: A. TELNET

35. Networks where end user workstations are tied to LAN servers to share resources and application processing.

A. Internetworked enterprise
B. Information super highway
C. Business applications of telecommunications
D. Client/Server networks


Correct Answer: D. Client/Server networks

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