Test Retele de calculatoare

What is a WAN ?

• Wide Area Network
• Wide Access Network
• Wider Allowance Networking

What is a LAN?

• Local Area Network
• Local Access Network
• Localized Area Network

Mbps is known as...

• Megabits per second
• Megabytes per second
• Gigabits per second

What are the most common network usage models?

• Peer-to-peer and Client-Server
• LAN and WAN
• Star and Bus

What network topology is this ?

• BUS
• STAR
• RING

What is a network?

• A group of 1 or more devices which communicate

• A group of 2 or more devices which communicate

• When 2 or more computers are in the same building.

• A group of 3 or more devices which communicate

an advantage of networks?

• Easy to set up

• Allows devices to communicate with each other

• File security is more protected with a WAN

Wide Area Networks (WANs)

• cover a large geographical area

• use cables, telephone lines, satellites and radio waves to connect

• are used by international organisations

• All 3 options

A Local Area Network (LAN)

• is typically used by no more than six users simultaneously

• usually operates on a single site or within a single building

• always uses cables to connect

• all 3 options

One disadvantage of a ring network is:

• Data collisions can occur if there is heavy traffic on the network

• It uses a lot of cable

• The ‘token’ used to transmit data can get lost

• In order for the nodes to communicate they must all be switched on