1. There are different ways of arranging networks in a LAN. What is a LAN? (2 marks)
To achieve full marks, state the full form of LAN and then explain what a LAN is (e.g. how it is different from a WAN)
2. Huge networks like the internet require protocols to maintain common standards and govern the way things work. What is a protocol? (1 mark)
3. What is a network protocol (1 mark)
Read the excerpt below. Explain four reasons why the bakery may use a star network topology for their LAN. (4 marks)
Bethany owns a large bakery and has a Local Area Network
(LAN) with a star topology. She orders her supplies
over the Internet. When data is transmitted from the bakery
to the supplier, network protocols are used.
5. TCP/IP is a set of protocols based on layers. With regards to network protocols, define what is meant by a "layer". (1 mark)
6. Describe one advantage of using layers to construct network protocols. (1 mark)
7. Read the excerpt below and write an algorithm to show how packet switching works to send and receive a document. (4 marks)
Freya needs to send a document across a network to Mofi.
Write an algorithm to show how packets are used to send
the document, starting from when Freya clicks send (sending),
and finishing when Mofi reads the document (receiving).
8. Computers in a local area network can be identified using both IP addresses and MAC addresses. Describe two differences between IP addresses and MAC addresses. (2 marks)
9. Mr Aung owns a large software gaming company. It has a LAN that is linked to a WAN. What is meant by a wide area network? (1 mark)
10. A large financial company uses a LAN to connect all the computers in its central office. The network uses failover.
Describe what is meant by failover and justify the need for failover in the network. (4 marks)