1.4 wired and wireless networks

Question 1

networks

Answer 1

a set of computer systems used to share resources and data

Question 2

LAN

Answer 2

(local area network) wired or wireless netowrk usually connected to a server within a certain place.

Question 3

WAN

Answer 3

(wide area network) a network that spans over large geographical areas.

Question 4

PAN

Answer 4

(personal are network) used for connecting devices from your workplace to your computer system (e.g. bluetooth).

Question 5

server

Answer 5

a centerlised computer or system in a network.

Question 6

client

Answer 6

a computer system in which a centeral server provides data to a number of networked workstations.

Question 7

client-server

Answer 7

connects many computers (clients) to a main computer (server).

Question 8

peer-peer

Answer 8

devices that are connected via the internet and can share files without the need of a server.

Question 9

packet

Answer 9

contais the ip address and data of file.

Question 10

packet switching

Answer 10

data in smaller seperate packets

Question 11

IP address

Answer 11

a unique string of numbers separated by full stops that identifies each computer using the internet protocol to communicate over a network

Question 12

WAP

Answer 12

(wireless access point) an access point that allows a wi-fi connected device to connect to the wired network and provides access in public areas.

Question 13

router

Answer 13

a device which forwads data packets to the appropriate parts of a computer network

Question 14

switch

Answer 14

a device for making and breaking the connection in an electric circuit and transports data through wires at high seppds. used instead of hubs. they cut down on unneccesarry network traffic. sends and recieves faster than hubs.

Question 15

NIC

Answer 15

(network interface card) provides the computer with a dedicated full-time connection to a network and has the format for the protocols of the network.

Question 16

transmittion media

Answer 16

data is transforemed from one place to another.

Question 17

ethernet

Answer 17

it links computers in a LAN network together using wires.

Question 18

bandwidth

Answer 18

bandwidth describes the speed at which data is transmitted.

Question 19

latency

Answer 19

the dalay before a transfer of data begins following an instruction fot its transfer.

Question 20

tunneling

Answer 20

a protocol that allows for the secure movement of data from one network to another.

Question 21

network performance

Answer 21

mesures service quality of a network as seen by the costomer.

Question 22

network traffic

Answer 22

the amount of data flowwing through a network at once.

Question 23

internet

Answer 23

a global computer network providing a variety of infomation and communication facilities and data consiting of interconnected networks using standardized communication protocols.

Question 24

DNS

Answer 24

(domain name servers) it holds the nsme that is linked to the IP address so the user can easily read and understand what page they are on.

Question 25

hosting

Answer 25

allows buissnesses and people to make their websites avalible on the internet.

Question 26

the cloud

Answer 26

where data is stored on the computer network rather than your computers hard drive.

Question 27

virtual network

Answer 27

tech that improves your online privacy and security.

Question 28

VPN

Answer 28

(virtual private network) it provides a safer and more private access to a network.

Question 29

protocols

Answer 29

a set of rules or procedures for transmitting data between electronic devices.