module 6

Question 1

what is a computer network

Answer 1

two or more computers are connected

Question 2

what are the advantages of a computer network

Answer 2

facilitate sharing

high-speed connection

peripheral devices such as printer file

Question 3

what are the disadvantages of a computer network

Answer 3

network administration

installing new devices

monitoring perofmrance

updating and installing software

network security

Question 4

what is a node

Answer 4

a device connected to a network

Question 5

what is the architecture of a network

Answer 5

the design of said network

Question 6

what is the WAN

Answer 6

wide area network

Question 7

what is the HAN

Answer 7

home area network

Question 8

what is the MAN

Answer 8

metropolitan area network

Question 9

what is the LAN

Answer 9

land area network

Question 10

what are the types of transmission cables

Answer 10

dial-up cable

fibre optic cable

coaxial cable

Question 11

what is the data transfer rate

Answer 11

amount of digital data that is moved from one place to another in a given time

can be viewed as the speed of travel of a given amount of data from one place to another

Question 12

what is the throughput of data transfer

Answer 12

actual speed of data achieved

Question 13

compare the throughput of data transfer to the data transfer rate, how can you compare them?

Answer 13

the throughput is always equal and slower than the transfer rate

Question 14

network adapters

Answer 14

enables node to connect to the network

Question 15

what is a wireless signal

Answer 15

electromagnetic waves traveling through the air

Question 16

network navigation devices

Answer 16

control the flow of data on a network

Question 17

give examples of home networks

Answer 17

P2P

LINUX

Windows

OS X

Question 18

what do home ethernet networks use to communicate

Answer 18

they use ethernet protocols

WIRELESS 802.11

WIRED802.3

Question 19

how can you measure the sped of a throuput

Answer 19

can be measured like meters

Question 20

what is network cabling

Answer 20

networking hardware used to connect one network device to other network devices

connect two or more computers to share printers, scanners etc.

Question 21

what do network cables use to connect each other in a building

Answer 21

twisted pair or coaxial cable

Question 22

coaxial cable

Answer 22

two conductor electrical cable

consisting of a center conductor and an outer conductor with an insulating spacer between the two

Question 23

what are coaxial cable used for

Answer 23

coaxial cables are used for the transmission of Radio Frequency energy.

system offers tight control over electrical impedance

Question 24

what is the best cable for home users

Answer 24

CAT6

Composed of four pairs of wires that are twisted around each other to reduce electrical interference (coaxial cables)

Question 25

what is the connector at the end of the CAT6 cable

Answer 25

RJ-45

Question 26

what are Network-attached storage (NAS) devices

Answer 26

dedicated file storage

enables multiple users and heterogeneous client devices to retrieve data from centralized disk capacity

Question 27

how do users of a Land area network (LAN) access the shared storage (NAS)

Answer 27

through the ethernet

Question 28

whats is connecting to a network without owner’s honest called

Answer 28

piggy backing

Question 29

how to prevent piggybacking

Answer 29

change network name and password

limit network range

turn on security protocols

update drivers

Question 30

how does the throughput speed decrease?

Answer 30

when you go further and further away from the router