Computer Networks

Which one is not a type of a network?

• Internet

• Extranet

• Ethernet

• Intranet

Second layer of OSI model

• Session

• Application

• Data link

• Network

State the 3rd layer of OSI model

(a)  

How many layers has OSI model?

(a)  

Data layer of OSI model is about...

• Physical media

• Source and destination MAC addresses

• Source and destination IP addresses

• Interface for end point service

WAN =

• Wireless Area Netwotk

• Wide Area Network

• Wired Area Network

Two fundamental VPN technologies are

• Security

• Encryption

• Internet

• Tunnelling

The process of encoding data so that only a computer with the right decoder will be able to read and use it, called

(a)  

Set of rules for data communication over a network is called

(a)  

Select the functions of protocols

• Translate into machine code

• Prevent deadlock

• Check the speed of data transmission

• Manage flow control