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Introduction to Computing > M7 > Flashcards

M7 Flashcards

1
Q

is a group of computer systems
and other computing hardware devices that are linked
together through communication channels to facilitate
communication and resource-sharing among a wide
range of users

A

computer network

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2
Q

a collection of computers and devices connected together via

communications devices and transmission media.

A

network

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3
Q

Networks are commonly categorized based on their

A

characteristics

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4
Q

connect groups of computers and low-voltage devices together across short distances
(within a building or between a group of two or three buildings in close proximity to
each other) to share information and resources.

A

Local Area Networks (LAN)

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5
Q

The smallest and most basic type of network

A

PAN (Personal Area Network

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6
Q

are typically
found in small offices or residences, and are managed by one person or organization
from a single device.

A

PAN (Personal Area Network

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7
Q

these types of networks don’t require that devices rely on physical cables to connect
to the network.

A

WLAN (Wireless LAN)

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8
Q

can be spread across

several buildings that are fairly close to each other so users can share resources

A

CAN (Campus Area Network

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9
Q

span an entire geographic area (typically a town or city, but sometimes a campus).
Ownership and maintenance is handled by either a single person or company (a local
council, a large company, etc.).

A

MAN (Metropolitan Area Network)

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10
Q

allows computers and lowvoltage devices to be remotely connected to each other over one large network to
communicate even when they’re miles apart.

A

WAN (Wide Area Network)

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11
Q

they move storage resources away from the network and

place them into their own high-performance network.

A

SAN (Storage Area Network)

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12
Q

It is
used to explain a relatively local network that is designed to provide high-speed
connection in server-to-server applications (cluster environments)

A

SAN (Storage Area Network)

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13
Q

can be integrated into structured cabling to overcome
concerns about supporting traditional Ethernet protocols and network applications
such as PoE (Power over Ethernet)

A

POLAN (Passive Optical LAN)

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14
Q

uses optical splitters to split an optical signal from one strand of single-mode optical
fiber into multiple signals to serve users and devices.

A

POLAN (Passive Optical LAN)

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15
Q

These types of networks are built and owned by

businesses that want to securely connect its various locations to share computer resources.

A

EPN (Enterprise Private Network)

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16
Q

lets its users send and receive data as if their devices were connected to the
private network – even if they’re not.

users can access a private network remotely.

A

VPN (Virtual Private Network)

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17
Q

refers to the layout of the computers and devices in a

communications network.

A

network topology

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18
Q

The various network topologies

are:

A
  • Bus
  • Ring
  • Star
  • Mesh
  • Hybrid
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19
Q

is a network type in which every computer

and network device is connected to single cable

A

Bus topology

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20
Q

the physical cable that connects the

computers and other devices.

A

bus

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21
Q

forms a ring connecting all devices with

its exactly two neighboring devices.

A

ring topology

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22
Q

all the devices are
connected to a single hub through a
cable.

A

star topology,

23
Q

is the central node and
all others nodes are connected to the
central node

A

hub

24
Q

every device is connected to another

device via particular channel.

A

mesh topology,

25
Q

is a type of network topology that uses two or more differing
network topologies.

A

A hybrid topology

26
Q

is a worldwide collection of networks that
links millions of businesses, government agencies,
educational institutions, and individuals

A

Internet

27
Q

The Internet originated as X in X

A

ARPANET (Advanced
Research Project Agency Network)

September 1969

28
Q

any computer that provides services and connections to other computers on a
network.

A

host or server

29
Q

In 1986, the National Science Foundation (NSF) connected its huge network of five
super computer centers, called X, to ARPANET

A

NSFnet

30
Q

oversees research and

sets standards and guidelines for many areas of the Internet.

A

World Wide Web Consortium (W3C)

31
Q

is a not-for-profit research and development project that connects more
than 200 universities and 115 companies via a high-speed private network

A

Internet2

32
Q

provides high-speed Internet access through the cable

television network via a cable modem

A

Cable Internet service

33
Q

provides high-speed Internet connections using regular

copper telephone lines.

A

DSL (digital subscriber line)

34
Q

uses fiber-optic cable to provide high-speed Internet

access to home and business users.

A

Fiber to the Premises (FTTP)

35
Q

provides high-speed Internet connections using a dish-shaped
antenna on your house or business to communicate with a tower location via radio
signals.

A

Fixed wireless

36
Q

offers high-speed Internet connections to devices with

built-in compatible technology or computers with wireless modems.

A

cellular radio network

37
Q

uses radio signals to provide high-speed Internet

connections to compatible or properly equipped wireless computers and devices.

A

Wi-Fi (wireless fidelity) network

38
Q

provides high-speed Internet connections via satellite to a

satellite dish that communicates with a satellite modem.

A

Satellite Internet service

39
Q

is a business that provides individuals and organizations access to
the Internet free or for a fee.

A

access provider

40
Q

is a regional or national access provider.

A

ISP (Internet service provider)

41
Q

usually provides Internet access to a specific geographic area.

A

regional

ISP

42
Q

is a

business that provides Internet access in cities and towns nationwide

A

national ISP

43
Q

has
many members-only features such as instant messaging or their own customized
version of a Web browser.

A

online service provider (OSP)

44
Q

The two more popular OSPs are

A

AOL (America Online) and

MSN (Microsoft Network)

45
Q

OSP that regulates the Internet services to which
members have access and provides free access to its services to any user with a
broadband Internet connection.

A

AOL (America Online)

46
Q

is a
company that provides wireless Internet access to desktop and notebook computers
and mobile devices, such as smart phones and portable media players, with built-in
wireless capability (such as Wi-Fi) or to computers using wireless modems or wireles
access devices.

A

wireless Internet service provider, sometimes called a wireless data provider

47
Q

which usually are in the form of a USB flash drive
or a card that inserts in a slot in a computer or mobile device, generally dial a
telephone number to establish a connection with the wireless Internet service
provider.

A

Wireless modems

48
Q

X on or built into the computer or device, wireless modem, or
wireless access device typically sends signals through the airwaves to communicate
with a wireless Internet service provider.

A

antenna

49
Q

is a number that uniquely identifies each

computer or device connected to the Internet

A

IP (Internet Protocol) address

50
Q

is the text version of an IP address

A

domain name

51
Q

translates the domain name into its

associated IP address

A

DNS (Domain Name System) server

52
Q

Every domain name contains a X, which is the last section of the
domain name.

A

top-level domain (TLD)

53
Q

identifies the type of organization associated

with the domain.

A

A generic TLD (gTLD)

Introduction to Computing (22 decks)

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