Calculate the amplitude and the frequency of the sine wave, Electrical Engineering

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(a) The key elements of a protocol are the syntax, semantics and timing. Give a brief explanation of each of these key elements.

(b) A file contains 4 million bytes. Compare the time taken to download the file using

(i) a 56-Kbps channel and

(ii) a 1-Mbps channel?

(c) Explain four characteristics that differentiate one network from another.

(d) From the graph below, calculate the amplitude and the frequency of the sine wave.

589_Calculate the amplitude and the frequency of the sine wave.png

(e) Consider we have 10 devices in a network, what is the number of cable links required for

(i) a mesh,
(ii) a ring,
(iii) a bus and
(iv) a star topology?

(f) What is the basic difference between a port address, a logical address, and a physical address?

(g) Describe the term "Bandwidth".


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