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Exam 7: Telecommunications, the Internet, and Wireless Technology

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Question 31

Multiple Choice

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Digital subscriber lines

A) operate over existing telephone lines to carry voice, data, and video.
B) operate over coaxial cable lines to deliver Internet access.
C) are very-high-speed data lines typically leased from long-distance telephone companies.
D) have up to twenty-four 64-Kbps channels.
E) are assigned to every computer on the Internet.

F) A) and B)
G) B) and E)

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Question 32

Multiple Choice

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Which of the following is not a characteristic of packet switching?

A) Packets travel independently of each other.
B) Packets are routed through many different paths.
C) Packet switching requires point-to-point circuits.
D) Packets include data for checking transmission errors.
E) Packets are reassembled into the original message when they reach their destinations.

F) C) and D)
G) All of the above

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Question 33

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TCP/IP was developed in the 1960s to enable university scientists to locate other computers on the Internet.

The WiMax standard can transmit up to a distance of approximately

The total amount of digital information that can be transmitted through any telecommunications medium is measured in

The device that acts as a connection point between computers and can filter and forward data to a specified destination is called a(n)

VoIP technology delivers voice information in digital form using packet switching.

Which digital cellular standard is used widely throughout the world except the United States?

What service converts IP addresses into more recognizable alphanumeric names?

Which process is used to protect transmitted data in a VPN?

Which type of network would be most appropriate for a business that comprised three employees and a manager located in the same office space, whose primary need is to share documents?

Which type of network is used to connect digital devices within a half-mile or 500-meter radius?

Two computers using TCP/IP can communicate even if they are based on different hardware and software platforms.

The process of employing techniques to help a Web site achieve a higher ranking with the major search engines is called

Fiber-optic cable is more expensive and harder to install than wire media.

A computer network consists of at least three computers.

The child domain of the root is the

Central large mainframe computing has largely replaced client/server computing.

What is Web 3.0, and how do you think Web 3.0 developments could impact businesses?

A(n) ________ is a box consisting of a radio receiver/transmitter and antennas that links to a wired network, router, or hub.