CAPE Computer Science Unit 2 · 2015 · Paper 2 · Question 5(d)
Briefly explain the role of the network and transport layers in the OSI network model.
The mark scheme is shown once you've answered.
Practise this questionOther parts of this question
- 5(a)Briefly describe two advantages of a client/server network over a peer-to-peer network.[4 marks]
- 5(b)(i)Explain what is meant by the term 'firewall'.[2 marks]
- 5(b)(ii)Explain why firewall software needs to be frequently updated.[2 marks]
- 5(c)State two differences between FDDI and Ethernet network architectures.[2 marks]
- 5(e)Outline three reasons why many users prefer wireless routers over wired routers.[3 marks]
- 5(f)(i)Explain the purpose of GPRS.[2 marks]
- 5(f)(ii)Name and describe two applications that use GPRS.[6 marks]
More practice: the rest of this paper · more Computer Networks and Architectures questions · all CAPE Computer Science Unit 2 past papers