811. A 8-Mbps token ring has a token holding timer value of 10 msec. What is the longest frame (assume header bits are negligible) that can be sent on this ring?
A. 8000 B frame
B. 80,000 B frame
C. 8 x 105 bit frame
D. 10,000 B frame

812. Data are sent over pin _____ of the EIA-232 interface.
A. 2
B. 3
C. 4
D. All of the above

813. Demodulation is a process of
A. converting analog to digital signals
B. converting digital to analog signals
C. multiplexing various signals into one high speed line signals
D. performing data description.

814. Internet-like networks between a company and its business partners. Select the best fit for answer:
A. Bandwidth alternatives
B. Switching alternating
C. Inter organizational networks
D. Extranets

815. An example of an analog communication method is
A. laser beam
B. microwave
C. voice grade telephone line
D. All of the above
E. None of the above

816. Which of the following layer protocols are responsible for user and the application programme support such as passwords, resource sharing, file transfer and network management?
A. Layer 7 protocols
B. Layer 6 protocols
C. Layer 5 protocols
D. Layer 4 protocols
E. None of the above

817. What frequency range is used for FM radio transmission?
A. Very Low Frequency : 3 kHz to 30. kHz
B. Low Frequency : 30 kHz to 300 kHz
C. High Frequency : 3 MHz to 30 MHz
D. Very High Frequency : 30 MHz to 300 MHz
E. None of the above

818. Transmission of computerised data from one location to another is called
A. data transfer
B. data flow
C. data communication
D. data management
E. None of the above

819. Compared to analog signals, digital signals
A. allow faster transmission
B. are more accurate
C. both (a) and (b)
D. All of the above
E. None of the above

820. FDDI is a
A. ring network
B. star network
C. mesh network
D. bus based network
E. None of the above