Networks

Question 1

What does a wan stand for?

Answer 1

Wide area network

Question 2

What does lan stand for?

Answer 2

Local area network

Question 3

What are the factors that affect the performance of networks?

Answer 3

Bandwidth
Error rate
Number of users
Transmission media
Latency

Question 4

Hardware used to make lan

Answer 4

Wap
Switch
Nic
Router

Question 5

Router?

Answer 5

Directs data packets from one router to another

Question 6

Switch?

Answer 6

Used to connect devices on a LAN. It receives data packets and forwards them to the correct device using their unique individual MAC address

Question 7

Advantages of mesh?

Answer 7

Highly robust
Data can be transmitted from several devices simultaneously. Network can cope with high traffic.
Run faster

Question 8

Disadvantages of mesh?

Answer 8

Expensive to set up
Self maintenance and network administration is complex

Question 9

Disadvantages of client server

Answer 9

Costly maintenance team to manage the network
Too many client requests will degrade server performance
If network connection is down entire service is lost for whole network

Question 10

Define internet

Answer 10

Global network of interconnected networks

Question 11

Define World Wide Web

Answer 11

All the web pages that are accessible via the internet

Question 12

Cloud advantages

Answer 12

No expensive hardware
Flexible storage
Provider is responsible for security and regular backups
Environmentally friendly
No networking skills needed

Question 13

Cloud disadvantages

Answer 13

Reliable internet connection
No direct control
Responsible for data security breach

Question 14

IPv4?

Answer 14

4 numbers (8 bits) separated by full stop

Question 15

MAC address

Answer 15

Up to 255