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Exam 9: Communications and Networks

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Question 31

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Most businesses use a standard, such as ____, that defines how data transmits across telephone lines or other means.

A) PCS (personal communications services)
B) EFT (electronic funds transfer)
C) PDS (public data services)
D) EDI (electronic data interchange)

E) A) and D)
F) B) and C)

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Question 32

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In a networked environment, each computer on the network has access to hardware on the network.

A) True
B) False

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Question 33

Multiple Choice

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DSL ____.

____________________ is a software application that helps groups of people work together on projects and share information over a network.

Although ____ are not a type of standard telephone line, they are very popular ways for the home user to connect to the Internet.

Communication software usually is bundled with the operating system or purchased network devices.

A(n) ____________________ defines guidelines that specify the way computers access the medium to which they are attached, the type(s) of medium used, the speeds used on different types of networks, and the type(s) of physical cable and/or the wireless technology used.

Critical Thinking Questions Case 1 You have taken a new job as a network administrator. Although you have been an IT professional within your organization for a number of years, this particular responsibility is a new one for you, so you have been studying network topologies, for example. If you are charged with setting up a network for your team and there is one device whose reliability you are concerned about, which of the following network topologies is a bad idea for you?

____ is a newer network standard developed by IEEE that specifies how wireless devices communicate over the air in a wide area.

The most popular T-carrier line is the ____.

A(n) ____ is a navigation system that consists of one or more earth-based receivers that accept and analyze signals sent by satellites in order to determine the receiver's geographic location.

____ is a category of cellular transmission that transmitted analog data.

A ____ is a network that connects computers and devices in a limited geographical area, such as a home, school computer laboratory, or office building.

Some messaging services use the term ____________________ to refer separately to the capability of sending video clips.

____ allows users to send graphics, pictures, video clips, and sound files, as well as short text messages to another smart phone, PDA, or computer.

A database server is a dedicated server that ____.

The risk to a bus network is that ____.

Sometimes a company uses a(n) ____________________, which allows customers or suppliers to access part of its intranet.

Discuss fiber-optic cable, including its advantages and disadvantages.

Each token ring network has several tokens.