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16. A band is always equivalent to
A. a byte
B. a bit
C. 100 bits
D. 16 bits
E. None of the above
17. What is the port number for HTTP?
A. 99
B. 86
C. 80
D. 23
18. The most flexibility in how devices are wired together is provided by
A. bus networks
B. ring networks
C. star networks
D. T-switched networks
E. None of the above
19. Which of the following statement is incorrect?
A. The transport layer provides for any format, translationer code conversion necessary to put the data into an intelligible format.
B. The presentation layer transforms information from machine format to the understandable format.
C. The data link layer handles the transfer of data between the ends of a physical link.
D. All of the above
E. None of the above
20. When you connect to an online information service, you are asked to provide some kind of identification such as your name, an account number and a password. What is the name given to this brief dialogue between you and the information system?
A. Security procedure
B. Safeguard procedure
C. Identification procedure
D. Log-on procedure
E. None of the above
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