The Internet: Connecting Networks

Question 1

What is the world’s largest computer network

Answer 1

the internet

Question 2

computer network

Answer 2

group on interconnected computing devices capable of sending or receiving data

Question 3

computing devices

Answer 3

any device that can run a program

Question 4

examples of computing devices

Answer 4

tablet computer phone sensor, etc.

Question 5

how many devices is the simplest computing network

Answer 5

two devices

Question 6

what does a network need to work

Answer 6

have a way to physically connect and how to send data in a format where all the devices can understand

Question 7

network topology

Answer 7

the different arrangements of devices in a network

Question 8

Local Area Network

Answer 8

network that covers a limited area like a house or school

Question 9

what is the most common type of network

Answer 9

local area network

Question 10

what is the largest type of network

Answer 10

wide area network

Question 11

wide area network

Answer 11

network that extends over a large geographic area and is composed of many local area networks

Question 12

how can the networks in a WAN (the local ones) be connected

Answer 12

with leasing telecommunication lines

Question 13

do the LANs in a WAN have to have the same network topology

Answer 13

no

Question 14

LAN stands for

Answer 14

local area network

Question 15

WAN stands for

Answer 15

wide area network

Question 16

what are the different types of networks

Answer 16

DCN
LAN
WAN

Question 17

DCN stands for

Answer 17

data center network

Question 18

data center network

Answer 18

network used in data centers that need to exchange data super fast

Question 19

what type of network is the internet

Answer 19

wan

Question 20

in order for devices to communicate over the internet (newtwork) what do they need to follow

Answer 20

internet networking protocols

Question 21

do all networks use the same protocols

Answer 21

no, some use protocols that are tailored to their purpose

Question 22

internet

Answer 22

group of connected networks

Question 23

network

Answer 23

group of connected devices

Question 24

protocol

Answer 24

a system of rules that explain the correct conduct and procedures to be followed. Basically it’s something that tells the programs how to properly behave so that they can do their tasks correctly.

Question 25

list the physical connections of networks in the internet

Answer 25

copper cables twisted pair cable fiber optic cables wireless

Question 26

how do twisted pair cables send data through the network

Answer 26

by transmitting pulses of electricity that represents binary data

Question 27

what was the earliest known physical connection between networks in the internet

Answer 27

copper cables

Question 28

what must be followed to ensure that cables are ensuring info that can be understood by the networks

Answer 28

ethenert standards

Question 29

twisted pair cables aka

Answer 29

ethernet cables

Question 30

example of where LAN is used

Answer 30

company office

Question 31

example of where WAN is used

Answer 31

country

Question 32

how do Fiber-optic cables send data through the network

Answer 32

by sending pulses of light that represent binary data

Question 33

structure of Fiber-optic cables

Answer 33

optical fiber that can carry light (instead of electricity). The fiber is coated with plastic layers and sheathed in a protective tube to protect it from the environment

Question 34

how do fibre optic cables ensure that they are sending data that can be understood by all of the devices in the network

Answer 34

by following Ethernet standards

Question 35

what is better at transmitting data fibre optic cables or copper cables

Answer 35

fibre optic

Question 36

what do wireless connections include

Answer 36

nothing - no wiring

Question 37

how do wireless connections work

Answer 37

1- a wireless card in the computer turns binary data into radio waves 2- the binary data is vroomed shot through the air 3- the radio waves of binary data travels long or short distance (depends on obstacles) 4- waves are picked up by a wireless access point which converts the binary data to radio waves to binary data again

Question 38

can wireless connections access everywhere

Answer 38

no - limited bc of obstacles like buildings

Question 39

issue of wireless connections

Answer 39

slower irl

Question 40

issue of twisted pair copper cables

Answer 40

prone to interference

Question 41

issue of fibre opric cables

Answer 41

expensive

Question 42

wireless connections send data through ___

Answer 42

radio waves

Question 43

twisted pair copper cables send data through ____

Answer 43

electricity

Question 44

fiber optic cables send data through ___

Answer 44

light

Question 45

rank the connections from can connect most distance (furthest) to least : wireless, fiber optic, twisted pair copper

Answer 45

twisted pair copper wireless fiber optic

Question 46

WAP stands for

Answer 46

wireless access point

Question 47

wireless access point

Answer 47

device that allows you to connect wirelessly to internet

Question 48

router

Answer 48

device that allows ALOTTT of devices to wireless connect to the internet

Question 49

requirement of network topologies

Answer 49

there must be a way In which data can continuously flow through all of the devices

Question 50

computing devices

Answer 50

a physical device that run a program

Question 51

. All computing devices have ways to store data for later use. true or false

Answer 51

false

Question 52

. All computing devices are capable of being interconnected to form computer networks. true or false

Answer 52

false

Question 53

how is data communicated (language)?

Answer 53

binary

Question 54

how are computers able to send messages with only one wire

Answer 54

there are pulses that each show smth in binary (so either 0 or 1)

Question 55

what must computing devices agree on for data to transfer to each other

Answer 55

the time period

Question 56

line coding

Answer 56

process of turning binary data into a time based signal

Question 57

bit rate

Answer 57

speed of which network connections send bits

Question 58

megabit

Answer 58

1 million bits

Question 59

bandwidth

Answer 59

measurement of how much data can be transferred in a fixed period of time.

Question 60

broadband internet

Answer 60

connection with a minimum bandwidth of 256 Kbps (kilobits)

Question 61

what an broadband internet be used for

Answer 61

checking emails + websites but not watching videos

Question 62

latency

Answer 62

time between the sending of a data message and the receiving of that message

Question 63

latency is measured in what

Answer 63

milliseconds

Question 64

how to calculate latency

Answer 64

add the number of milliseconds it takes for a computing device's message to be sent to another computing device, and the amount of time it takes for the og device to be notified that the msg was recieved

Question 65

Speed is made of

Answer 65

bandwidth and latency

Question 66

bandwidth units:

Answer 66

__bit per __second

Question 67

data transferred is measured in what

Answer 67

__bits

Question 68

how to calculate bandwidth

Answer 68

its js the max amount --> so if given a chart with bps then js look for the biggest one