Communication and Networking

Question 1

Wide area network (WAN)

Answer 1

a network connecting computers on different sites, possibly thousands of kilometers apart

Question 2

PSTN

Answer 2

public switched telephone network

Question 3

WAN transmission medium

Answer 3

fiber optic cable

Question 4

Local area network(LAN)

Answer 4

a network connecting computers on the same room or a single building

Question 5

which can be owned LAN or WAN?

Answer 5

LAN can be owned WAN cannot be owned

Question 6

LAN transmission medium

Answer 6

Twisted Pair cable

Question 7

Era of computing

Answer 7

1990

Question 8

Internet

Answer 8

number of networks all connected together

Question 9

Client-server

Answer 9

it is an architecture where a client runs an application provided by the server

Question 10

Thin-client

Answer 10

client that only receives input and gives back output to the application

Question 11

Thick-client

Answer 11

client that processes or carries out processing itself

Question 12

Simplex mode

Answer 12

Data only flows one way

Question 13

Half-duplex

Answer 13

Data flows both ways but not simultaneously

Question 14

Full-duplex

Answer 14

Data flows both ways simultaneously

Question 15

Broadcast

Answer 15

one to all communication

Question 16

Multicast

Answer 16

one source to many destinations

Question 17

unicast

Answer 17

one source to a single destination

Question 18

bus topology

Answer 18

one shared link that connects all the devices

Question 19

mesh topology

Answer 19

one direct link to connect devices

Question 20

star topology

Answer 20

each end-system is connected to a central device

Question 21

hybrid network

Answer 21

collection of connected LANS

Question 22

bandwidth

Answer 22

amount of data that can be transmitted per second