Deck 7: Computer Networks and Cloud Computing

Question 1

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

Answer 1

True

Question 2

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 2

False

Question 3

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

Answer 3

False
- URL, Uniform Resource Locator, URL (Uniform Resource Locator), Uniform Resource Locator (URL)

Question 4

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

Question 5

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 6

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

Question 7

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

Question 8

The term switched, dial-upmeans that when you dial a telephone number, a switch is flipped to temporarilyestablish a connection between the caller and the call recipient.

Question 9

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

Question 10

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

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

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

Question 13

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

Question 14

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

Question 15

In June 2010, the IEEE ratifiedthe 100-gigabit Ethernet standard.

Question 16

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

Question 17

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

Question 18

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 19

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

Question 20

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 21

The voice-oriented dial-up telephone network was originally a(n) ____ medium.

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

Question 22

____ 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 23

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 24

____ is the term for the separation of a service from the entity(or entities) providing that service.

A) Visualization
B) Distributed computing
C) Virtualization
D) Topological change

Question 25

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

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

Question 26

____ is a collection of documents interconnected by pointers.

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

Question 27

____ 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 28

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 29

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

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

Question 30

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 31

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

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

Question 32

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) router

Question 33

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 34

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) website

Question 35

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 36

____ 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 37

____ 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 38

____ behaves much like the client/server model, except that the servers no longer need to be local to the client population.

A) Cloud computing
B) The network layer
C) TCP/IP
D) SSH

Question 39

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 40

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 41

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

Question 42

What is groupware?

Question 43

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

Question 44

What is IPv6?

Question 45

What does the term net neutrality mean?

Question 46

What are the two critical responsibilities of the Network layer?

Question 47

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

Question 48

Define a protocol in the context of networking.

Question 49

Provide three reasons why email rapidly became the most popular application of networks.

Question 50

Why were WANs first studied?