Exam Chapter 7, Networking and Security
Name___________________________________

TRUE/FALSE.  Write 'T' if the statement is true and 'F' if the statement is false. 

1) 

It is not possible to configure a client/server network for home use. 

1) 

_______ 

2) 

A client computer is the computer on which users accomplish specific tasks. 

2) 

_______ 

3) 

A single computer can function as both a client and a server, but performance will be degraded. 

3) 

_______ 

4) 

Most desktop and notebook systems sold today are network ready. 

4) 

_______ 

5) 

MAN stands for mobile area network 

5) 

_______ 

6) 

When a network is sponsored by a government entity to provide Internet access to a specific geographic area, that network will generally be designated as a MAN. 

6) 

_______ 

7) 

The cost of a P2P network is slightly greater than the cost of a client/server network. 

7) 

_______ 

8) 

P2P networks are more commonly used in small businesses than in homes. 

8) 

_______ 

9) 

Wireless networks are more vulnerable to attack than wired networks. 

9) 

_______ 

10) 

A network-ready device is a device that may be attached to a network but still has to connect to a networked computer first. 

10) 

______ 

11) 

A wireless NIC from one manufacturer may not work with a DSL router from another manufacturer, even when both devices claim to be developed using the same standards. 

11) 

______ 

12) 

The 802.11g standard supports transfer rates of up to 30 Mbps. 

12) 

______ 

13) 

802.11 devices are less susceptible to interference than 802.11g devices are. 

13) 

______ 

14) 

Wireless networks are no more vulnerable to packet sniffers than any other type of network. 

14) 

______ 

15) 

SMTP uses port 21. 

15) 

______ 

16) 

SMTP stands for Simple Mail Transfer Protocol. 

16) 

______ 

17) 

The practice of piggybacking is illegal. 

17) 

______ 

18) 

The majority of investigations related to cybercrime involve debit card fraud. 

18) 

______ 

19) 

The Master Boot Record executes every time a computer boots up. 

19) 

______ 

20) 

Extreme G and Enhanced G standards were both based on 802.11g standards but used proprietary hardware and software tweaks to increase performance. 

20) 

______ 

21) 

802.11g devices  have a faster throughput than 802.11n devices. 

21) 

______ 

22) 

The Internet is an example of a client/server network. 

22) 

______ 

23) 

Cybercriminals are usually security individuals who work in large corporations with a vast knowledge base of computing and networking. 

23) 

______ 

24) 

In a peer-to-peer network, one computer acts as the server. 

24) 

______ 

25) 

One can have both wired and wireless nodes on a single P2P network.  

25) 

______ 

26) 

Data transfer rate does NOT affect the speed at which a user can download a file from a WAN.  

26) 

______ 

27) 

Switches receive data packets and send them to the node for which they are intended on the same network. 

27) 

______ 

28) 

A P2P network needs network operating system software installed on every node.  

28) 

______ 

29) 

Ethernet networks are always connected using twisted-pair cable technology.  

29) 

______ 

30) 

The Mac OS does NOT support P2P networking.  

30) 

______ 

31) 

Most computers today come with Ethernet adapters already installed.  

31) 

______ 

32) 

Repeaters can extend a network's range by amplifying the signal.  

32) 

______ 

33) 

When configured correctly, network firewalls can help protect your network.  

33) 

______ 

34) 

White-hat hackers perform a needed legal service for society.  

34) 

______ 

MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. 

35) 

Which of the following is NOT an example of a network node? 

35) 

______ 

A) 

a modem 

B) 

an NOS 

C) 

a computer 

D) 

a printer 

36) 

A computer network is defined as two or more computers connected with __________ so that they can communicate with each other. 

36) 

______ 

A) 

hardware 

B) 

the Internet 

C) 

software 

D) 

software and hardware 

37) 

Networks allow users to share 

37) 

______ 

A) 

paper. 

B) 

phones. 

C) 

peripherals. 

D) 

flash drives. 

38) 

A(n) __________ allows sharing of a broadband Internet connection. 

38) 

______ 

A) 

hub 

B) 

adapter 

C) 

phone cord 

D) 

router 

39) 

Network architectures are classified according to 

39) 

______ 

A) 

the speed at which the processor runs. 

B) 

the bandwidth supplied by the connection. 

C) 

the way they are controlled and the distance between their nodes. 

D) 

the distance between the hub and the router. 

40) 

Due to the expansion of media files on home computers, __________  options are now being marketed;  however, they are not as full featured as their business-world counterparts. 

40) 

______ 

A) 

online storage 

B) 

mega flash drives	 

C) 

external hard drive 

D) 

home server 

41) 

Most computers today contain network adapters installed inside as expansion cards. Such adapters are referred to as  

41) 

______ 

A) 

network expansion cards. 

B) 

network interface cards. 

C) 

network adapter cards. 

D) 

ethernet cards. 

42) 

Normal telephone wire is 

42) 

______ 

A) 

twisted-pair cable. 

B) 

fiber-optic cable. 

C) 

ethernet cable. 

D) 

coaxial cable. 

43) 

The most common type of network is 

43) 

______ 

A) 

a peer-to-peer (P2P) network. 

B) 

a client/server network. 

C) 

a token ring LAN. 

D) 

a WAN. 

44) 

In a client/server network, there are usually many more __________ than __________. 

44) 

______ 

A) 

clients, servers 

B) 

clients, computers 

C) 

printers, computers 

D) 

servers, clients 

45) 

A network that has ten or more nodes is usually configured as a 

45) 

______ 

A) 

peer-to-peer network. 

B) 

WAN. 

C) 

client/server network. 

D) 

home network. 

46) 

Which of the following is NOT an example of a WAN? 

46) 

______ 

A) 

a LAN at the main university campus connected with a LAN at the university extension site 

B) 

a computer at a bank's main branch connected with a LAN at the bank's branch office across town 

C) 

the computers in a lab at your school connected to the computers in a lab at another school in your town 

D) 

LANs connected in a single building 

47) 

Which transmission medium is able to transmit data the fastest? 

47) 

______ 

A) 

twisted-pair cable 

B) 

wireless 

C) 

fiber-optic cable 

D) 

coaxial cable 

48) 

The data transfer rate of a wireless network is usually measured in 

48) 

______ 

A) 

Gbps. 

B) 

Tbps. 

C) 

Kbps. 

D) 

Mbps. 

49) 

Throughput, the actual speed of data transfer that is achieved in a network, is usually 

49) 

______ 

A) 

less than the data transfer rate. 

B) 

dependent on the cable's bend radius. 

C) 

the same as the data transfer rate. 

D) 

more than the data transfer rate. 

50) 

Network adapters 

50) 

______ 

A) 

are built into the motherboard on each node. 

B) 

are always Ethernet NICs. 

C) 

are necessary only on servers in a client/server network. 

D) 

enable nodes in a network to communicate with each other. 

51) 

Sophisticated networks generally use which of the following hardware devices to ease the flow of data packets throughout the network? 

51) 

______ 

A) 

USB ports 

B) 

routers and switches 

C) 

network interface cards (NICs) 

D) 

firewalls 

52) 

Client/server networks are controlled by a central server that runs a specialized piece of software called 

52) 

______ 

A) 

Windows Vista. 

B) 

a network operating system(NOS). 

C) 

NetWare. 

D) 

a firewall. 

53) 

The major difference in types of P2P networks is the __________ by which the nodes are connected. 

53) 

______ 

A) 

transmission medium 

B) 

port 

C) 

network interface card 

D) 

software 

54) 

Ethernet networks are named for 

54) 

______ 

A) 

the type of transmission medium used. 

B) 

the protocol used. 

C) 

the type of NIC installed in every node. 

D) 

the type of operating system installed on every node. 

55) 

An Ethernet adapter is a 

55) 

______ 

A) 

device that uses a simple algorithm to move data. 

B) 

transmission medium. 

C) 

specific type of NIC. 

D) 

specific type of router. 

56) 

The most popular transmission medium option for wired Ethernet networks is 

56) 

______ 

A) 

power-line cable. 

B) 

unshielded twisted-pair cable (UTP). 

C) 

coaxial cable. 

D) 

fiber-optic cable. 

57) 

Maximum cable run (length) for Ethernet networks using UTP cable is approximately: 

57) 

______ 

A) 

328 feet. 

B) 

550 feet. 

C) 

50 feet. 

D) 

1,100 feet. 

58) 

Which of the following is necessary to send data between a home network and the Internet? 

58) 

______ 

A) 

a cable 

B) 

a router 

C) 

a switch 

D) 

a hub 

59) 

A wireless network uses which of the following as its transmission medium? 

59) 

______ 

A) 

laser waves 

B) 

radio waves 

C) 

sound waves 

D) 

fiber-optic waves 

60) 

Which of the following devices translates electronic data into radio waves? 

60) 

______ 

A) 

a fiber-optic cable 

B) 

a receiver 

C) 

a modem 

D) 

a transceiver 

61) 

Which of the following network adapters is most likely to be preinstalled in a typical notebook computer today? 

61) 

______ 

A) 

a transceiver 

B) 

a power-line adapter 

C) 

a modem 

D) 

a wireless network adapter 

62) 

Which of the following devices is needed to share an Internet connection on a wireless network? 

62) 

______ 

A) 

a wireless router 

B) 

a fiber-optic cable 

C) 

a wireless hub 

D) 

a modem 

63) 

If you frequently transfer large data files between nodes on a network, which of the following networks would be the best choice? 

63) 

______ 

A) 

wireless 

B) 

dial-up 

C) 

Ethernet 

D) 

power-line 

64) 

To improve communication effectiveness in a wireless network, you can do all of the following EXCEPT 

64) 

______ 

A) 

reposition the computer you are using. 

B) 

move the computers in the network closer together. 

C) 

add a wireless access point (WAP) to the network. 

D) 

move your computer next to a cement wall. 

65) 

Most __________ allow you to connect wireless and wired computers to the same network. 

65) 

______ 

A) 

transceivers 

B) 

servers 

C) 

modems 

D) 

wireless routers 

66) 

Public places where you can wirelessly connect to the Internet are known as 

66) 

______ 

A) 

hotspots. 

B) 

links. 

C) 

wired spots. 

D) 

gateways. 

67) 

All of the following are reasons for using a power-line network instead of an Ethernet network EXCEPT 

67) 

______ 

A) 

you don't need to run new wires with a power-line network. 

B) 

power-line networks cost less. 

C) 

power-line networks can be easier to install. 

D) 

you are experiencing interference with a wireless Ethernet network. 

68) 

When setting up a network, you should set up any computers running the Microsoft Vista operating system 

68) 

______ 

A) 

The order does not matter. 

B) 

only before any computers running Linux. 

C) 

first. 

D) 

last. 

69) 

The weakest link in any computer security system is 

69) 

______ 

A) 

the network. 

B) 

the users. 

C) 

the operating system. 

D) 

USB ports. 

70) 

What is the best thing a company can do to prevent its electronic data from being stolen? 

70) 

______ 

A) 

establish detailed security policies 

B) 

shut off access on computers to flash drives 

C) 

disconnect employees' computers from the Internet 

D) 

install hidden cameras 

71) 

Which of the following is formally defined as any criminal action perpetrated primarily through the use of a computer? 

71) 

______ 

A) 

hacking 

B) 

cybercrime 

C) 

social networking 

D) 

phishing 

72) 

A packet sniffer is a program that can enable a hacker to do all of the following EXCEPT 

72) 

______ 

A) 

assume your identity. 

B) 

launch a denial of service (DoS) attack on your computer. 

C) 

steal your logon and passwords for various accounts. 

D) 

use your debit card information to purchase items illegally. 

73) 

Which of the following is a program that appears to be something useful or desirable but at the same time does something malicious in the background? 

73) 

______ 

A) 

a virus 

B) 

a zombie 

C) 

a worm 

D) 

a Trojan horse 

74) 

Distributed denial of service (DDoS) attacks have been associated with 

74) 

______ 

A) 

theft of financial data at the IRS. 

B) 

attacks on famous blogs, eBay, and Amazon.com. 

C) 

identity theft. 

D) 

misuse of credit card information. 

75) 

The most likely method a hacker would use to access a computer is 

75) 

______ 

A) 

sitting down at a computer and installing hacking software. 

B) 

entering through the Internet. 

C) 

overhearing your password and/or log-on information. 

D) 

entering through a company intranet. 

76) 

Rules for creating passwords include all of the following EXCEPT 

76) 

______ 

A) 

change your password frequently. 

B) 

create a hard-to-guess password, with a combination of letters and numbers. 

C) 

keep your password written down, and put it in your wallet. 

D) 

keep your password a secret. 

77) 

One can thwart most hacking problems by installing a 

77) 

______ 

A) 

security policy. 

B) 

network. 

C) 

hub. 

D) 

firewall. 

78) 

__________  makes broadband users more vulnerable to attacks.. 

78) 

______ 

A) 

Dynamic addressing 

B) 

Static addressing 

C) 

IP addressing 

D) 

Greater bandwidth 

79) 

The purpose of Network Address Translation is to 

79) 

______ 

A) 

hide user IP addresses from the Internet. 

B) 

dynamically assign IP addresses via an ISP. 

C) 

convert logical ports to physical port configurations. 

D) 

translate IP addresses from the Internet. 

80) 

Manufacturers such as Linksys, D-Link, and Netgear make which of the following devices that can double as firewalls? 

80) 

______ 

A) 

modems 

B) 

routers 

C) 

networks 

D) 

NICs 

81) 

To secure a wireless network, you should take all the following precautions EXCEPT 

81) 

______ 

A) 

changing the default password on your router. 

B) 

changing your network name. 

C) 

disabling SSID broadcast. 

D) 

turning your computer off at night. 

82) 

How many viruses and virus variants exist today? 

82) 

______ 

A) 

hundreds 

B) 

tens 

C) 

thousands 

D) 

millions 

83) 

Which type of virus was the famous Michelangelo virus? 

83) 

______ 

A) 

an e-mail virus 

B) 

a time bomb 

C) 

a script virus 

D) 

a worm 

84) 

Which of the following classifications of viruses changes its own code? 

84) 

______ 

A) 

multipartite 

B) 

polymorphic 

C) 

worm 

D) 

stealth 

85) 

Quarantining with regard to computer protection is defined as 

85) 

______ 

A) 

repairing the infected file. 

B) 

deleting the infected file. 

C) 

updating your antivirus software. 

D) 

placing a found virus in a secure area on the hard drive. 

SHORT ANSWER.  Write the word or phrase that best completes each statement or answers the question. 

86) 

Match the following terms to their definitions:

I.	server	A.	two or more computers connected together via software 
			so they can communicate
II.	client	B.	can be a computer, peripheral, or communication device 
			on a network 
III.	network	C.	serves users within a confined geographical area 
IV.	node	D.	the computer on which users accomplish specific tasks and
			make specific requests
V.	LAN	E.	provides information and/or resources to the client computers
			on a network 

86)  

_____________ 

87) 

Match the following terms to their definitions:

I.	bandwidth	A.	handles data traffic between networks
II.	throughput	B.	handles data traffic between nodes on the same network
III.	router	C.	maximum speed at which data can be transmitted
IV.	switch	D.	network adapters
V.	NICs	E.	actual speed of data transfer 

87)  

_____________ 

88) 

Match the following terms to their definitions:

I.	worm	A.	a hacker that re-uses hacking tools written by
			someone else
II.	computer virus	B.	a program that renders your computer files unusable
III.	script kiddie	C.	a type of this virus, "Storm," infected millions of 
			computers in 2007
IV.	encryption virus	D.	a virus that changes its own code to avoid detection
V.	polymorphic virus	E.	a program that attaches itself to another program and
			attempts to spread itself to other computers through the
			exchange of files 

88)  

_____________ 

89) 

Match the following terms to their definitions:

I.	FTP	A.	provides Internet services to consumers
II.	CAT 5	B.	a protocol used on the Internet for sending and receiving files
III.	ISP	C.	a malicious attack in which a multitude of compromised
			systems attack a single target
IV.	DDoS	D.	a type of cable
V.	WAN	E.	a network that covers a great distance 

89)  

_____________ 

90) 

Match the following terms to their definitions:

I.	Wi-Fi	A.	retaining the same IP address for a long time
II.	packet sniffer	B.	assigning addresses out of an available pool of
			IP addresses
III.	static addressing	C.	also known as the 802.11 wireless standard
IV.	dynamic addressing	D.	a computer controlled by a hacker
V.	zombie	E.	a program that looks at each packet as it travels
			over the network 

90)  

_____________ 

91) 

Match the following terms to their definitions:

I.	logical port	A.	the technique of assigning hidden internal IP addresses
			protected from hackers
II.	packet filtering	B.	virtual communication gateway for a specific service, such
			as HTTP or FTP
III.	IP address	C.	method for selectively allowing certain requests to access
			ports
IV.	firewall	D.	hardware or software for protecting computers from hackers
V.	NAT	E.	a computer's identity on the Internet 

91)  

_____________ 

92) 

Match the following terms to their definitions:

I.	logic bomb	A.	a virus that executes based on specified conditions
II.	Trojan horse	B.	software that allows hackers to take control of a
			computer
III.	backdoor program	C.	transmits simultaneous requests from multiple zombie
			computers
IV.	DDoS	D.	a program that appears to do useful work but does harm
			in the background
V.	time bomb	E.	an infectious program that is triggered on a certain date 

92)  

_____________ 

93) 

Match the following terms to their definitions:

I.	packet	A.	software that controls an installed hardware device
II.	Wi-Fi	B.	server-side software that controls network communications
III.	driver	C.	unit of data transmitted in a network
IV.	NOS	D.	programming that is inserted into programmable read-only
			memory 
V.	firmware	E.	another name for the 802.11 standard 

93)  

_____________ 

94) 

Match the following terms to their definitions:

I.	switch	A.	enables individual nodes to communicate in a network
II.	adapter	B.	converts digital signals to radio waves
III.	repeater	C.	facilitates data packet transmission
IV.	wireless transceiver	D.	sends data packets between networks
V.	router	E.	amplifies signals to prevent degradation on long cables 

94)  

_____________ 

95) 

Match the following terms to their definitions:

I.	identity theft	A.	techniques used to manipulate people into performing
			actions or divulging confidential information
II.	black-hat hacker	B.	an unethical hacker
III.	phishing	C.	usage of your personal information by someone to get
			a driver's license
IV.	social engineering	D.	an "ethical" hacker
V.	white-hat hacker	E.	sending e-mail to obtain personal information 

95)  

_____________ 

96) 

__________ options are fast becoming a popular choice for managing an entire family's personal media. 

96)  

_____________ 

97) 

The type of wireless network designed to provide access to city residents and visitors is typically a(n) __________. 

97)  

_____________ 

98) 

Many cities in the United States are now deploying __________ to provide Internet access to residents and convenience for tourists. 

98)  

_____________ 

99) 

In terms of networking, MAN stands for __________. 

99)  

_____________ 

100) 

A network adapter installed inside a computer as an expansion card is referred to as a(n) __________. 

100)  

____________ 

101) 

NIC stands for __________. 

101)  

____________ 

102) 

To provide an older computer with wireless capability, you need to use a(n) __________. 

102)  

____________ 

103) 

__________ transfer data between  two or more networks. 

103)  

____________ 

104) 

__________ receive data packets and send them to the node for which they are intended. 

104)  

____________ 

105) 

A __________ device can be connected directly to a router instead of connecting it to a computer on a network. 

105)  

____________ 

106) 

__________ devices, which are becoming popular for home use, provide centralized data storage and access for networks. 

106)  

____________ 

107) 

The Internet is a good example of a(n) __________ network. 

107)  

____________ 

108) 

For security reasons, you should be extremely wary of opening e-mail __________ such as Word files. 

108)  

____________ 

109) 

__________ software identifies known viruses effectively. 

109)  

____________ 

110) 

If you install a device called a __________ on your network, you can share a broadband Internet connection between several computers. 

110)  

____________ 

111) 

The term network __________ refers to the design of a network. 

111)  

____________ 

112) 

A(n) __________ network is one in which each computer can communicate directly with each other, instead of having a separate device exercise central control over the entire network. 

112)  

____________ 

113) 

__________ networks use the existing electrical wiring in your house. 

113)  

____________ 

114) 

A(n) __________ network is one in which the nodes are located within a small geographical area. 

114)  

____________ 

115) 

Most notebook computers sold currently come with an 802.11g or a(n) __________ network adapter built in. 

115)  

____________ 

116) 

The maximum range of wireless devices under the 802.11g standard is about __________ feet. 

116)  

____________ 

117) 

As the distance between the nodes of a wireless network increases, throughput __________ markedly. 

117)  

____________ 

118) 

All 802.11g devices work on a bandwidth of __________ GHz. 

118)  

____________ 

119) 

__________ cable consists of a single copper wire surrounded by layers of plastic and is used to connect cable TV. 

119)  

____________ 

120) 

Normal telephone wire is composed of __________ cable, which consists of copper wires wrapped around each other and covered in a plastic jacket. 

120)  

____________ 

121) 

Bundles of data sent over transmission media are called __________. 

121)  

____________ 

122) 

Some network adapters take the form of external devices that plug into an available __________ port. 

122)  

____________ 

123) 

__________ cable is made up of copper wires twisted around each other and is used in telephone technology. 

123)  

____________ 

124) 

__________ is the actual speed of data transfer on a network. 

124)  

____________ 

125) 

The 802.11 wireless standard is also known as __________. 

125)  

____________ 

126) 

__________ networks are controlled by a central server that has specialized NOS software installed on it. 

126)  

____________ 

127) 

In terms of networking, NOS stands for __________. 

127)  

____________ 

128) 

Switches and routers are both network __________ devices. 

128)  

____________ 

129) 

There are three main types of P2P networks: wired, wireless, and __________. 

129)  

____________ 

130) 

__________ viruses compress common data files into a file using a complex encryption key, rendering your files unusable. 

130)  

____________ 

131) 

__________ is the specific category of UTP cable that has the highest data transfer rate. 

131)  

____________ 

132) 

If you need to extend the length of an Ethernet network, you can use a(n) __________ to do so. 

132)  

____________ 

133) 

The best defense against viruses is to install __________, which is software specifically designed to detect viruses and protect your computer. 

133)  

____________ 

134) 

A(n) __________ is a network navigation device that merely retransmits a signal to the other nodes attached to it. 

134)  

____________ 

135) 

A(n) __________ network uses radio waves as its transmission medium. 

135)  

____________ 

136) 

A(n) __________ on a network can be a peripheral, such as a printer or scanner. 

136)  

____________ 

137) 

__________ are virtual communication paths that allow a computer to organize requests for information from other networks or computers. 

137)  

____________ 

138) 

File Transfer Protocol uses port __________. 

138)  

____________ 

139) 

FTP stands for __________. 

139)  

____________ 

140) 

If your IP address is always the same, you have a __________ address. 

140)  

____________ 

141) 

__________ refers to the act of connecting to a wireless connection without the permission of the owner. 

141)  

____________ 

142) 

__________ is a process used by firewalls to assign internal IP addresses on a network. 

142)  

____________ 

143) 

HTTP uses port __________. 

143)  

____________ 

144) 

HTTPS uses port __________. 

144)  

____________ 

145) 

Hackers who use their knowledge to destroy information are known as __________ hackers. 

145)  

____________ 

146) 

Young, amateur hackers are often referred to as __________. 

146)  

____________ 

147) 

A(n) __________ is composed of software programs known as robots or bots, which run automatically on zombie computers. 

147)  

____________ 

148) 

A(n) __________ is a computer program that investigates data packets as they travel through the network and is often used by hackers to capture sensitive or private data for illegal purposes. 

148)  

____________