Deck 7: Computer Networks, The Internet, and the World Wide Web

Question 1

The World Wide Web was completed and made available to all researchers at CERN in May 1982, the date that marks the birth of the Web.

Answer 1

False

Question 2

A(n) ____________________ is a "smarter" device that has knowledge about the nodes located on each separate network.

Answer 2

bridge

Question 3

Initially, analog encoding and decoding operations were done very quickly because of the open bandwidth of a switched telephone line.

Answer 3

False

Question 4

A single Web page is identified by a symbolic string called a(n) protocol. _________________________

Question 5

While WiMAX is great for communicating with a nearby router, its transmission limit means it cannot provide mobile Internet access from a car or outdoor site far from any base station. _________________________

Question 6

The network layer of the Internet, IP, is inherently an extremely reliable communication channel.

Question 7

Generally, it is difficult to intercept transmissions and gain unauthorized access to wireless networks.

Question 8

A(n) ____________________ is an information block with a fixed maximum size that is transmitted through the network as a single unit.

Question 9

In the early 1980s, TCP/IP was used only in the United States.

Question 10

NSF planned and built a national network called NSFNet, which used TCP/IP technology identical to the ARPANET.

Question 11

A technology called broadband has rapidly been replacing modems and analog phone lines for data communications to and from our homes, schools, and offices. _________________________

Question 12

Groupware is software that facilitates the efforts of individuals connected by a network and working on a single shared project.

Question 13

A digital subscriber line is always symmetric, which means that it has the same transmission speed in the download direction as in the upload direction.

Question 14

The star topology connects the network nodes in a circular fashion, with messages circulating in either a clockwise or counterclockwise direction until they reach their destination. _________________________

Question 15

A(n) LAN connects devices that are not in close proximity but rather are across town, across the country, or across the ocean. _________________________

Question 16

In the ____________________ topology all nodes are connected to a single shared communication line.

Question 17

The individual computers on the network are referred to as ____________________.

Question 18

____________________ has been the single most popular application of networks for the last 30 years.

Question 19

The Internet is a single computer network.

Question 20

Everyone today should buy their own I/O or storage devices because it is a cost-effective way to configure computer systems.

Question 21

One of the most widely used standards for wireless local access is called ____.

A) Hi-Fi
B) 802.1x
C) 802.11ax
D) Wi-Fi

Question 22

____ is the ability to share physical resources, such as a printer or storage device, as well as logical resources, such as software and information.

A) Access sharing
B) Resource sharing
C) Resource planning
D) Access planning

Question 23

A(n) ____ is a set of independent computer systems connected by telecommunication links for the purpose of sharing information and resources.

A) computer group
B) computer network
C) internetwork
D) internet

Question 24

A ____ is a shared public file where anyone can post messages and everyone is free to read the postings of others.

A) bulletin board
B) social network
C) chat room
D) Web site

Question 25

____ is a software package that allows users to log on remotely to another computer and use it as though it were their own local machine.

A) FTP
B) Web client
C) Telnet
D) Rsync

Question 26

____ is a general term applied to any use of computers and networking to support the paperless exchange of goods, information, and services in the commercial sector.

A) Electronic exchange
B) Commerce exchange
C) Electronic commerce
D) Commercial networking

Question 27

A modem modulates a standard analog signal called a ____ wave so that it encodes binary information.

A) carrier
B) baseband
C) broadband
D) barrier

Question 28

A ____ uses the same wires that carry regular telephone signals into your home.

A) digital subscriber line
B) digital subscription link
C) digital standard line
D) digital standard link

Question 29

____ are systems that create communities of users who share common interests and activities and which provide multiple methods of online interaction.

A) Bulletin boards
B) Newsgroups
C) Chat rooms
D) Social networks

Question 30

A ____ makes internetwork connections and provides routing between different WANs.

A) gateway
B) switch
C) bridge
D) repeater

Question 31

____ is a low-power wireless standard used to communicate between devices located quite close to each other.

A) Bluetooth
B) Wi-Fi
C) Bluenote
D) Redtooth

Question 32

____ provides a way to move files around the network quickly and easily.

A) FTP
B) Web client
C) Telnet
D) SSH

Question 33

The voice-oriented dial-up telephone network was originally a totally ____ medium.

A) digital
B) electrical
C) analog
D) mechanical

Question 34

____ is a collection of documents interconnected by pointers.

A) Hypernext
B) Hypertext
C) Hyperbolic
D) eText

Question 35

In the early days of networking, the most common way to transmit data was via ____, dial-up telephone lines.

A) directly-connected
B) shared
C) linked
D) switched

Question 36

A(n) ____ is the worldwide identification of a Web page located on a specific host computer on the Internet.

A) NRL
B) IRL
C) IRI
D) URL

Question 37

A ____ connects hardware devices such as computers, printers, and storage devices that are all in close proximity.

A) metro area network
B) local area network
C) wide area network
D) proximity network

Question 38

In the commercial and office environment, the most widely used broadband technology is ____.

A) ATM
B) token-ring
C) Ethernet
D) SONET

Question 39

A ____ contains massive amounts of information that can be electronically searched for specific facts or documents.

A) data warehouse
B) data cube
C) data plant
D) data wholesaler

Question 40

TCP requires that the two programs at the source and destination node initially establish a(n) ____.

A) link
B) connection
C) interface
D) duplex

Question 41

What are the two critical responsibilities of the Network layer?

Question 42

Explain in detail what a WAN is and how it differs from a LAN in terms of its unit of transmission.

Question 43

Why were WANs first studied?

Question 44

Explain what the function of a WWAN network is in the context of the transmission limitations of Wi-Fi.

Question 45

Define a protocol in the context of networking.

Question 46

What is a protocol stack?

Question 47

What is IPv6?

Question 48

Explain at length what spam is, why it has become a significant problem, and what a spam filter is.

Question 49

Provide three reasons why e-mail rapidly became the most popular application of networks.

Question 50

What do the Physical layer protocols govern? What do they specify? What is the goal of the Physical layer?