Ch 7.1 - Networking Concepts: Principles of Networking

Question 1

Network

Answer 1

A system formed by links

Question 2

Host

Answer 2

Any device that sends or receives information on the network

Question 3

host devices

Answer 3

“Tablets, laptop, desktop computer, IP phone, scanner

Reminder: Host devices must be directly connected to the network, anything connected to another device is a peripheral. IP phones directly connected to network.”

Question 4

Intermediary Devices

Answer 4

Devices that exist between host devices, ensuring data flows from 1 host device to another host device

Question 5

Switch

Answer 5

An intermediary device that is used to connect multiple devices to a network

Question 6

Wireless Router

Answer 6

An intermediary device that connects multiple wireless devices to a network

Question 7

“Access Point (AP)”

Answer 7

An intermediary device that provides wireless connectivity, but has fewer features than a wirless router.

Question 8

Network Media/ Medium

Answer 8

Provides the channel over which the message travels from source to destination.

Question 9

The plural of MEDIA is…

Answer 9

The singular of MEDIUM is….

Question 10

Name 3 common media that is used to link network devices together

Answer 10

“1. Copper cabling

2. Fiber-optic cabling
3. Wireless connection”

Question 11

Copper cabling

Answer 11

This type of media uses electrical signals to tansmit data between devices

Question 12

Fiber-Optic Cabling

Answer 12

This type of media uses glass or plastic fiber to carry information as light pulses

Question 13

Wireless Connection

Answer 13

This type of media uses radio signals, infrared technology, or satellite transmissions.

Question 14

Bandwidth

Answer 14

“A measurement of data that can be transmitted within a fixed amount of time. ‘—’ is measured in # of bits that can be transmitted every second; packets are sent across network 1 bit at a time. “

Question 15

How is the measurement of bandwidth presented?

Answer 15

”( )bp/s -k , -M, -G, … is a measurement of?”

Question 16

Latency

Answer 16

The amount of time it takes data to travel from source to destination

Question 17

Bandwidth unaccounted for, how is latency created?

Answer 17

“Data is delayed by network devices & cable length. Network devices add latency when processing & forwarding data.”

Question 18

Name 3 capabilities of data transmission flow

Answer 18

“1. Simplex 2. Half-Duplex 3. Full-Duplex”

Question 19

Simplex Transmission

Answer 19

This capability of data transmission can only flow in one direction between a sending station and a receiving station.

Question 20

An example of a ‘simplex’ transmission

Answer 20

“What type of transmission is the example below? A signal being sent from a TV station to a home TV”

Question 21

Half-Duplex Transmission

Answer 21

“This capability of data transmission can flow in both directions, but NOT simultaneously. If both parties transmit at the same time, neither one can be heard.”

Question 22

An example of a ‘half-duplex’ transmission

Answer 22

“What type of transmission is the example below? Communication on a two-way radio.”

Question 23

Full-Duplex Transmission

Answer 23

Data transmission that can go both ways, simultaneously.

Question 24

An example of ‘full-duplex’ transmission

Answer 24

“What type of transmission are the examples below? -An Internet connection using DSL service. -A telephone conversation.”

Question 25

Broadband technology

Answer 25

Multiple signals using multiple frequencies over one cable.

Question 26

What type of transmission does broadband technology operate in?

Answer 26

A technology that is an example of full-duplex transmission?

Question 27

What 2 Internet connections work on Broadband technology?

Answer 27

Cable internet connection & digital subscriber line (DSL) work on ‘—’ technology.

Question 28

What other capabilities does a multipurpose device (aka wireless router) have?

Answer 28

Switch, AP, firewall