True/False
Indicate whether the
statement is true or false.
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1.
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A network is simply a group of two or more computers linked together.
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2.
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The Internet is the biggest network of all.
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3.
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A standalone computer system is vulnerable to the same kinds of risks as a
network.
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4.
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Networks are divided into four main types.
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5.
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The communication area of a LAN might be as large as a state, country, or even
the world.
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6.
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Client/server networks are easier to set up and manage than peer-to-peer
networks.
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7.
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To connect wirelessly requires different equipment than that used for a wired
connection.
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8.
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Electronic identification cards are used to gain access to certain areas within
a building or department.
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9.
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The best plan for a company that handles secure information is to handle
security breaches as they occur.
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10.
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Biometric security measures are usually applied when high-level security is
required.
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Modified True/False
Indicate
whether the statement is true or false. If false, change the identified word or phrase to make the
statement true.
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11.
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The term client/server network describes a software architectural model.
____________________
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12.
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Server operating systems are high-end programs designed to provide
network control and include special functions for connecting computers and other devices into a
network. ____________________
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13.
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A wide area network (WAN) connects personal computers, workstations, and
other devices in a limited geographical area. ____________________
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14.
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In a client/server network, all computers are equal.
____________________
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15.
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An extranet is similar to a(n) server but it allows specific users
outside of the organization to access internal information systems. ____________________
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Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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16.
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What types of phones are supported through the Public Switched Telephone Network
(PSTN)?
a. | Digital | c. | Standard | b. | Mobile | d. | All of the
above |
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17.
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Which of the following network benefit do companies take advantage of when they
purchase a site license?
a. | Enhanced communication | c. | Software sharing | b. | Hardware sharing | d. | Collaborative
environment |
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18.
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Which of the following is true about e-mail?
a. | The cost depends on the size of the message | c. | It is private | b. | Delivery is almost
instantaneous | d. | It cannot be
sabotaged |
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19.
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In a client/server network, which of the following would be considered the
client?
a. | Microsoft Windows | c. | Printer | b. | Internet Explorer | d. | Desktop
computer |
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20.
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Which of the following can contain communication links across metropolitan,
regional, or national boundaries?
a. | LAN | c. | WAN | b. | Wireless LAN | d. | Intranet |
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21.
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In a client/server network, the ____ manages network resources.
a. | client | c. | node | b. | server | d. | router |
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22.
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Handbooks, employee manuals, and employment forms would most likely be found on
____.
a. | an intranet | c. | the Internet | b. | an extranet | d. | a hub |
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23.
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The word modem is an acronym for ____.
a. | modern demarcation | c. | modulate
demodulate | b. | most demand | d. | modification
demonstration |
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24.
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Which of the following uses coaxial cable to send and receive data?
a. | Modem | c. | Digital subscriber line (DSL) | b. | Cable
modem | d. | T-1
line |
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25.
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The ____ determines the amount of data that can be sent at one time.
a. | router | c. | node | b. | hub | d. | bandwidth |
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26.
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Computer information is stored digitally, but information sent over the
telephone lines is transmitted in the form of ____.
a. | analog waves | c. | air waves | b. | bridges | d. | fiber optics |
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27.
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A(n) ____ is a type of fiber-optic telephone line that can transmit up to 1.544
megabits per second.
a. | DSL | c. | VDSL | b. | HDSL | d. | T-1 line |
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28.
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“Sniffer” software is used to ____.
a. | prevent hackers from accessing your computer | b. | locate wireless hot
spots | c. | transmit voice data over telephone lines | d. | set up and manage a
peer-to-peer network |
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29.
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Antivirus software should ____.
a. | be run when you suspect a problem | c. | be run monthly | b. | be run
weekly | d. | always be
running |
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30.
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A(n) ____ acts like a switchboard through a firewall.
a. | Web server | c. | proxy server | b. | FTP server | d. | database server |
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31.
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A cache is a(n) ____.
a. | place to store something temporarily | c. | external wireless
adapter | b. | special type of password | d. | dedicated connection to the Internet |
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32.
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Companies handling sensitive information should back up data regularly and store
it ____.
a. | on the same computer | c. | on CDs | b. | on the network server | d. | off site |
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33.
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Biometric security measures examine any of the following, except ____.
a. | fingerprints | c. | voice pattern | b. | blood type | d. | retina of the
eye |
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FIGURE 24-1 
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34.
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Figure 24-1 above shows an example of ____.
a. | a communication channel | c. | a peer-to-peer
network | b. | a client/server network | d. | T-1 lines |
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FIGURE 24-2 
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35.
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Figure 24-2 above shows a computer with a ____ attached.
a. | dial-up modem | c. | hub | b. | wireless router | d. | T-1 line |
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Case 24-1
Javier has decided to upgrade his communication hardware and
get a faster Internet connection. After considering all the options, he has decided to use a wireless
Internet service provider.
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36.
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The speeds Javier will get with his new wireless connection will be more than
____ times faster than his old dial-up connection.
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37.
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To connect his laptop wirelessly to the Internet, Javier will need a(n)
____.
a. | hub | c. | T-1 line | b. | router | d. | adapter |
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Case 24-2
Bryah owns a small business and travels frequently. She is
concerned about the security of the data on her laptop, which includes valuable information and trade
secrets.
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38.
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When Bryah creates a password to restrict access to her computer, she should
____.
a. | change it frequently | c. | write it down | b. | use all lowercase letters | d. | use the same one as her Internet
account |
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39.
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When Bryah is traveling, accidental association would be a concern when she is
____.
a. | connecting wirelessly to the Internet | c. | screening potential
employees | b. | employing biometric security measures | d. | backing up data |
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Completion
Complete each
statement.
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40.
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____________________ are people who break into computer systems to steal
services and information.
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41.
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A(n) ____________________ is designed for the exclusive use of people within an
organization.
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42.
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The ____________________ is a worldwide system composed of thousands of smaller
networks.
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43.
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____________________ is a recent wireless technology that can deliver maximum
speeds of up to 7 Mbps to your cell phone, home computer, or car.
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44.
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____________________ consist of special hardware and software to protect
individual companies’ networks from external networks.
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Matching
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Identify the letter of the choice that best
matches the phrase or definition.
a. | Communication
channel | b. | Router | c. | Node | d. | Hub | e. | Modem |
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45.
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Small, simple, inexpensive device that joins multiple computers
together
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46.
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Connects two or more LANs to make a WAN
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47.
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Enables a computer to transmit voice data over telephone lines
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48.
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Can include telephone lines, fiber optics, satellites, microwaves or any
combination of these
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49.
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Each device on the network
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Essay
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50.
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What are some of the changes that have occurred in our society because of the
Internet? What are some disadvantages of being so dependent on the Internet?
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