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problem1. The main elements of protocol are the syntax, timing and semantics. Provide a brief explanation of each of these main elements.

problem2. 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?

problem3. describe four characteristics that differentiate one network from another.

problem4. From the graph below, evaluate the amplitude and frequency of sine wave.

2115_amplitude graph.jpg

problem5. 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?

problem6. What is the differentiation between a port address, a logical address, and a physical address?

problem7. Illustrate the term “Bandwidth”.

Computer Network & Security, Computer Science

  • Category:- Computer Network & Security
  • Reference No.:- M95805

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