Main elements of protocol


Question1. The main elements of protocol are the syntax, timing and semantics. Provide a brief explanation of each of these main elements.

Question2. A file holds 4 million bytes. Compare the time taken to download the file using

(i)  a 56-Kbps channel and

(ii) a 1-Mbps channel?

Question3. Explain four characteristics that differentiate one network from another.

Question4. From the graph below, evaluate the amplitude and frequency of sine wave.

2115_amplitude graph.jpg

Question5. Assume we have 10 devices in a network, what is number of cable links required for?

(i)  A mesh,

(ii) A ring,

(iii) A bus and

(iv)  A star topology?

Question6. What is the differentiation between a port address, a logical address, and a physical address?

Question7. Illustrate the term “Bandwidth”.

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Computer Networking: Main elements of protocol
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