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26. What is the default subnet mask for a class A network?
A. 127.0.0.1
B. 255.0.0.0
C. 255.255.255.0.0
D. 255.255.255.0
E. None of the above
27. When using the loopback address, if TCP/IP is installed correctly, when should you receive a response?
A. Immediately
B. Only if the address fails
C. After the next host comes online
D. Within two minutes
E. None of the above
28. Which of the following statement is correct?
A. Satellite transponders contain a receiver and transmitter designed to relay microwave transmissions from one point on earth to another.
B. Satellite transponders contain a device that echos the radiation without change from one point on earth to another.
C. Satellite transponder contains devices that transform the message sent from one location on earth to a different code for transmission to another location.
D. Satellite transponders use lower frequency reception of radiation from earth stations and higher frequency for transmission to earth stations
E. None of the above
29. The modern enterprise is interconnected internally and externally by the Internet, intranets, and other networks. Select the best fit for answer:
A. Internetworked enterprise
B. Information super highway
C. Business applications of telecommunications
D. Client/Server networks
E. None of the above
30. The data communication support should include but is not restricted to
A. file transfer and transaction processing
B. file and database access
C. terminal support, electronic mail and voice grams.
D. All of the above
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