ICT: Lesson 4

Question 1

Two or more computers that are connected form what?

Answer 1

A Network

Question 2

LAN

Answer 2

Local area network

Question 3

A group of connected computers confined within a
small geographic area
It can range in size and scale based on their use
Examples include a home network, a school’s network or a small office’s network

Answer 3

Local area network (LAN)

Question 4

MAN

Answer 4

Metropolitan area network

Question 5

Designated for a network connection within a large city or multiple small cities
This is much larger
than a LAN because it covers a large geographic area
This are commonly operated by local governments or private companies

Answer 5

Metropolitan area network (MAN)

Question 6

WAN

Answer 6

Wide area network

Question 7

The largest network type
Connects two or more LANs together
This network is typically owned and maintained by the owner of the LANs that it connects
The largest of this network in existence is the Internet
Large corporations that span multiple cities, states or countries.

Answer 7

Wide area network (WAN)

Question 8

Designed for a company’s employees to share
internal
information.
Cannot be accessed by anyone without company
permission
and a user/password assigned by the company.

Answer 8

Intranet

Question 9

Similar to an Intranet, but is usually designed for the company’s customers to also access.

Answer 9

Extranet

Question 10

This Network secure networks designed to allow access to a specific group of people.

Answer 10

Virtual Private Network (VPN)

Question 11

How the network is designed to share information.

Answer 11

Network Typology

Question 12

Connects devices through one physical line called a bus cable
Information can flow in only one direction
Only one computer can send data at a time
Requires a device called a terminator at the end of the cable to prevent information from bouncing back if it reaches the end
If the bus cable fails, then the entire network will malfunction

Answer 12

Bus

Question 13

Each computer in the network connects to the same single network device
The network device receives information from each computer and transmits it accordingly
Capable of high speeds because multiple computers can communicate simultaneously
If one computer or cable fails, the rest of the network will still function
Most common topology used today

Answer 13

Star

Question 14

Connects all computers in the network through a single line
Only one computer can send data at a time
A computer must possess the “token’’ in order to send data on the network
The token is passed in a clockwise direction
If the main cable fails, then the entire network will malfunction

Answer 14

Ring (aka Token Ring)

Question 15

Each computer has a dedicated connection to every other computer in the network
If one cable fails, the rest of the network still functions normally
The most secure and reliable topology
Also the most expensive topology due to the amount of cable required to run a dedicated line to each computer

Answer 15

Mesh

Question 16

End user’s computer – processes the information

Answer 16

Client Network Model

Question 17

A powerful computer that stores information and processes requests from the connected clients

file sharing
print sharing
e-mail

Answer 17

Server Network Model

Question 18

An access point to the mainframe that provides a connection for a keyboard, mouse and monitor Is NOT an actual computer and cannot process the information

Answer 18

Terminal Network Model

Question 19

An access point to the mainframe that provides a connection for a keyboard, mouse and monitor Is NOT an actual computer and cannot process the information

Answer 19

Terminal Network Model

Question 20

This computer runs all programs directly on the mainframe

Answer 20

Mainframe Network Model

Question 21

Clients are attached to each other to share files or printers
There is no server

Answer 21

Peer to Peer Model

Question 22

Computer(s)
— desktop, notebook, tablet, mobile device
Operating system
— Windows, Linux, Mac OS, mobile OS
Network media
Network hardware
Network protocol

Answer 22

Requirements to Connect to a Network

Question 23

wired or wireless connections

Answer 23

Network media

Question 24

physical hardware connecting computers across the network

Answer 24

Network hardware

Question 25

the set of rules defining how the computers on the network will communicate

Answer 25

Network protocol

Question 26

A highspeed data cable that connects network computers to one another
Common types of this media are coaxial, fiber optic, and twisted-pair cable

Answer 26

Broadband

Question 27

This is a networking standard that allows connected devices to communicate on a network.
Common Ethernet medium found on LANs is a twisted pair

Answer 27

Ethernet

Question 28

802.11

Answer 28

WiFi

Question 29

Is the wireless networking standard that allows computers to communicate over a Wireless LAN (WLAN)

Answer 29

WiFi (802.11)

Question 30

This is a wireless standard that uses radio frequency
Used to connect devices within a small range
Often connect earbuds, mice, keyboards, and game controllers to another device
Devices connected with Bluetooth form a Personal Area Network (PAN)

Answer 30

Bluetooth

Question 31

Devices connected with Bluetooth form a what?

Answer 31

Personal Area Network (PAN)

Question 32

PAN

Answer 32

Personal Area Network

Question 33

Cell towers create a massive wireless network
Multiple speeds are available, including 3G, 4G, 4G LTE, and 5G
5G is the fastest connection available

Answer 33

Cellular

Question 34

This uses a wireless connection with receivers to form a network
This is a highly mobile network
Line-of-sight connection is required. Bad weather can disrupt connections.

Answer 34

Satellite

Question 35

NIC

Answer 35

Network Interface Card

Question 36

This is the specialized device that allows your computer to connect physically to the network cable.

Answer 36

Network Interface Card (NIC)

Question 37

A device used either internally or externally to connect computers and allows them to
transfer data over phone lines
Modem is short for Modulator/Demodulator. Most of the older phone modems are no longer used because Cable and DSL connections are so much faster.

Answer 37

Modems

Question 38

Network Hubs and USB Hubs

Answer 38

Hubs

Question 39

allows multiple computers to connect over a network. With multiple ports to connect Ethernet cables these are often found in smaller offices or departments within a larger network.

Answer 39

Network Hubs

Question 40

Are used to connect multiple peripherals (speakers, headsets, mouse, keyboard, etc.) to a single USB port of your computer in much the same way as extension cords allow you to plug in multiple electrical devices to a single outlet.

Answer 40

USB Hubs

Question 41

This are more powerful than a hub and come in various sizes for both home and office use. Unlike a hub, they are capable of controlling some of the network traffic and some people refer to a switch as a “smarthub.”

Answer 41

Switches

Question 42

This are used to connect from a LAN to another network. They are much smarter than switches and can be programmed to only allow authorized machines to connect to one another.

Answer 42

Routers

Question 43

As the name implies, this device acts as a gate between two or more networks. It can be a router, a firewall, or even a server whose function is to enable traffic flow in and out of a network.

Answer 43

Gateways

Question 44

Commonly a wireless router, an this allows wireless devices to connect to a network.

Answer 44

Access Points