April 2000
AN215 : ADVANCED NETWORKING

QUESTION 3

Total Marks: 15 Marks

• Question 1
• Question 2
• Question 4
• Question 5
• Cover Page

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SUGGESTED SOLUTIONS
for Question 3

(a)What is a common fault associated with parallel transmission?Explain this fault and why does it not apply to serial transmission [4 marks ]

(b)Distinguish between encryption and compression.How are they related?[4 marks ]

(c)Differentiate between error correction and error detection protocols.[3 marks ]

(d)In a contention based system,collisions may occur.Explain what is meant by a collision.Is this a network fault?How do the two hosts recover from this situation? [4 marks ]