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Exam 1 CIS 105 > Exam 2 > Flashcards

Exam 2 Flashcards

1
Q

Which is an advantage of networking?

A

Centralized data management

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2
Q

A _____ is necessary to make the connection between a local area network and the Internet?

A

router

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3
Q

Encryption on a wireless network is activated by enabling _______.

A

WPA

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4
Q

A(n) _______ is a network device with software that manages network resources like files, e-mails, printers, and databases.

A

server

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5
Q

Which of the following is NOT a network communications device?

A
  • Router

- LAN

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6
Q

Which of the following is the largest wide area (WAN)?

A

Internet

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7
Q

When a computer is connected to a network, it is called a:

A

node.

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8
Q

Which of the following network devices has the capability to determine the best path to transmit data and determine alternative pathways?

A

Router

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9
Q

Which of the following is the approximate effective inside range for a wireless LAN signals?

A

125 to 300 feet

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10
Q

A local area network (LAN) in which all the computers are equals is called a (n) ____ network.

A

peer-to-peer

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11
Q

A VPN operates as a private network over which larger type of network?

A

Internet

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12
Q

The term network topology refers to the:

A

physical layout of a local area network.

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13
Q

A ______ is a simple broadcast device that does not manage traffic and usually results in frequent collisions.

A

hub

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14
Q

Gigabit Ethernet makes a next generation application, such as _____, possible.

A

all of the above

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15
Q

Which of the following types of networks requires an access point?

A

WiFi

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16
Q

Which of the following features enable the strongest WiFi encryption protection?

A

WPA

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17
Q

_____, where networked computers work on small pieces of large complex tasks, is revolutionizing research in a number of areas…

A
  • Distributed computing

- Group work

18
Q

A point fo presence (POP) is a:

A

wired or wireless WAN network that enables users to access the WAN.

19
Q

To carry computer data over the long haul, WANs need to have a (n) _____ in multiple towns and cities.

A

POP

20
Q

Which of the following is the name for the high-capacity transmission lines that carry WAN traffic?

A

Backbones

……

21
Q

Wired technologies are:

A

connected by a physical medium.

22
Q

Which of the following is the path through which messages are sent from one location to another?

A

communications channels

23
Q

The bandwidth of a digital signal is measured in:

A

bits per second (bps)

24
Q

The word modem is a combination of which of the following words:

A

modulate and demodulate.

25
Q

bandwidth refers to:

A

the amount of data that can be transmitted through a communication channel.

26
Q

Which of the following terms is used to describe the transformation of analog signals into digital signals?

A

demodulation

27
Q

What is the transfer rate of fiber-optic cable?

A

10Gbps

28
Q

Which of the following wireless communications medium transmits through the air?

A

Infrared

29
Q

Bluetooth is a(n) _____ radio transmission technology.

A

short-range

30
Q

The maximum distance for microwaves is about ___ mile(s).

A

30

31
Q

____ transmit data by sending and receiving microwave signals to and from Earth-based stations.

A

satellites

32
Q

____ sends more than one call over a single line.

A

multiplexing

33
Q

Which of the following is NOT true about digital telephony?

A

Most telephones in the local loop use digital telephony

34
Q

DSL is ____ than dial-up but is often ____ than other broadband access options.

A

more expensive; less expensive

35
Q

Which of the following is NOT true about piggybacking?

A

at present it is not considered a crime to

36
Q

The current digital generation of phones is referred to as:

A

4g

37
Q

To work over wireless networks, Web-enabled devices require:

A

WAP

38
Q

WAP-enabled devices require a _____, a special Web browser that has all the features of computer-based browsers but is simplified to meet handheld device limitations.

A

microbrowser

39
Q

The basic advantage of Internet telephony is that:

A

you don’t pay long distance charges.

40
Q

Which of the following systems is used by the U.S. National Security Agency (NSA) to monitor international communications and search for phrases containing words such as bomb?

A

Echelon

Exam 1 CIS 105 (3 decks)

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