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.
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”.