Question: L 7611ICT: Computer Systems and Networks Week 10 - Weekly Assessment (2 marks) 1. Explain the functions of the Presentation Layer in the OSI

L 7611ICT: Computer Systems and Networks Week 10 - Weekly Assessment (2

L 7611ICT: Computer Systems and Networks Week 10 - Weekly Assessment (2 marks) 1. Explain the functions of the Presentation Layer in the OSI model. This question is worth 0.5 marks. 2. Compare the TCP and UDP protocols and identify typical applications for each of them. This question is worth 0.5 marks. 3. Explain the difference between Data Link layer error control and the Transport layer error control. This question is worth 0.5 marks. 4. What are the three main characteristics of information security that we try to protect using encryption mechanisms. This question is worth 0.5 marks.

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