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Exam 6: Telecommunications and Networks

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Question 71

True/False

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Frame relay technology is slower than X.25 and not as well suited to handle the heavy communications traffic of interconnected local area networks.

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Question 72

Multiple Choice

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Compared to coaxial cable,standard twisted-pair telephone lines:

A) Support lower data transmission speeds
B) Are virtually the same as coaxial cable in speed and service provided
C) Have less interference and distortion because of their insulation
D) None of the choices are correct.

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Question 73

Multiple Choice

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All of the following statements about the Internet revolution are true except:

Skype users can call to any non-computer-based landline or mobile telephone in the world for just pennies a minute.

An IP address is expressed as four decimal numbers separated by periods,such as 127.154.95.6.

Older,traditional mainframe-based business information systems are called _______________ systems.

ATM (asynchronous transfer mode) is an emerging high-capacity __________ switching technology.

Booking a reservation over the Internet costs an airline about 50 percent less than booking the same reservation over the telephone.

A client/server network of several interconnected local area networks can replace a large mainframe-based network with many end user terminals.

Narrow-band channels typically use microwave,fiber optics,or satellite transmission.