31. Which of the following is an example of a client-server model?
A. TELNET
B. FTP
C. DNS
D. All of the above
E. None of the above
32. In CRC there is no error if the remainder at the receiver is _____.
A. the quotient at the sender
B. nonzero
C. zero
D. equal to the remainder at the sender
E. None of the above.
33. A WATS arrangement
A. is always less expensive than flat-rate service
B. is less expensive than flat-rate service only when the number of calls is large and the duration of each is short
C. is less expensive than flat-rate service only when the number of calls is small and the duration of each is long
D. is never less expensive than flat-rate service
E. None of the above
34. A T-switch is used to
A. control how messages are passed between computers
B. echo every character that is received
C. transmit characters one at a time
D. rearrange the connections between computing equipment
E. None of the above
35. A global network of millions of business, government, educational, and research networks; computer systems; database; and end users. Select the best fit for answer:
A. Internet works
B. The Internet
C. Internet revolution
D. Internet technologies
E. None of the above
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