Networks

Question 1

what is a computer network?

Answer 1

• two or more computers connected together to share resources and data

Question 2

1.

What are 4 layers of the TCP/IP model

Answer 2

• Application
• Transport
• Internet
• Link

Question 3

What is the role of the application layer

Answer 3

Has protocols for preparing data for sending data. The user interacts with this layer

Question 4

What is the role of the Transport layer

Answer 4

It breaks the data down into packets and checks how the data will be sent

Question 5

What are the protocals at the Transport layer and there commen uses

Answer 5

TCP
- Slower but loses less packets
- used for text and image files
UDP
- faster but loses more packets
- used for sound and video files

Question 6

What is the role of the internet layer

Answer 6

To give the packets the sender and recivers IP adress

Question 7

What is the role of the Link layer

Answer 7

To give the packets the sender and recivers Mac adress
To chose how the Data is sent on the network:
- Wifi
- Ethernet