Networks Revision

Question 1

What is a network

Answer 1

Two or more devices connected together to communicate with each other to share useful resources

Question 2

What is a TCP

Answer 2

Transmission Control Protocol

Question 3

Where is a TCP used

Answer 3

Transport layer

Question 4

What does WiFi mean

Answer 4

Wireless Fidelity

Question 5

What does IP stand for

Answer 5

Internet protocol

Question 6

What does UDP stand for

Answer 6

User Datagram Protocol

Question 7

What is packet switching

Answer 7

Where a message is broken into a number of parts which are then sent

Question 8

What is a SMTP

Answer 8

Simple Mall Transfer Protocol

Question 9

What is IMAP

Answer 9

Internet Message Access Protocol

Question 10

What is an FTP

Answer 10

File Transfer Protocol

Question 11

what is a HTTP and a HTTPS

Answer 11

Hypertext Transfer Protocol

Hypertext Transfer Protocol Secure

Question 12

What is the TCP/IP Model

Answer 12

Application layer
Transport layer
Internet/network layer
Data/link layer

Question 13

What does the application layer do

Answer 13

Where software operates

Question 14

What does the Transport layer

Answer 14

Setting up communications between 2 devices.

Splitting data into packets and checking packets are sent to the right place

Question 15

What does the network layer

Answer 15

Adds IP address to data packets then directs them between devices using routers

Question 16

What does the data layer

Answer 16

Where the hardware and drivers operate. Passes data over the physical network

Question 17

Name an advantage of a ring topology

Answer 17

Easy to set up
Less chance of packet collision
Data can transfer between workstations at high speeds.

Question 18

Name a disadvantage for a ring topology

Answer 18

If 1 connection breaks the whole network will fail

Data must pass through all devices so it’s slow

Question 19

Name an advantage of a bus topology

Answer 19

Easy to install
Cheap as it doesn’t require a lot of wires
Don’t have t9 have a switch like the star topology

Question 20

Name an disadvantage of a bus topology

Answer 20

If the mainstream cable falls out the whole network will fail
More devices causes more collisions
Difficult to identify problems
Not meant to be used for a stand-alone solution

Question 21

Name an advantage of a star topology

Answer 21

Very reliable

High performing as there will be no data collisions

Question 22

Name an disadvantage of a star topology

Answer 22

Expensive to set up
Complicated to set up
If the hub fails all devices will have no network connection

Question 23

Function of NIC

Answer 23

Needs to be able to connect a network

Adapts signals between the network and device

Question 24

Function of a switch

Answer 24

Lots of ports to connect to devices in a LAN

Forward packets to devices in other segments of the LAN

Question 25

Function of a router

Answer 25

Forwards packets between two networks

Question 26

Function of a WAP

Answer 26

Allows wireless connection to a wired network using the Wi-Fi standard

Question 27

What does PAN mean

Answer 27

Personal Area Network

Question 28

What is an example of a PAN

Answer 28

A phone connecting to a laptop

Question 29

what does LAN mean

Answer 29

Local Area Network

Question 30

What is an example of a LAN

Answer 30

School building

Question 31

What does WAN mean

Answer 31

Wide Area Network

Question 32

What is an example of a WAN

Answer 32

The internet