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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.
(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".
Design a logic circuit when to provide an output when any two or three of four switches are closed.
Question: a) Describe five advantages of LED lighting over conventional incandescent lighting. b) State two impairments that reduces the radiant flux of a surface-emitting
Q A wire with n = 10 30 electrons/m 3 has an area of cross section A = 1mm 2 and carries a current i = 50 mA. Compute the number of electrons that pass a given point in 1 s, and
Semiconductor Material: Semiconductor is a material that has a conductivity level somewhere between the extreme of an insulator and a conductor Resistivity of a material
Find a minimum two level, multiple-output AND-OR gate circuit to realize these functions (eight gates minimum). F 1 (a,b,c,d) =Σm(10,11,12,15) +D (4,8,14) F 2 (a,b,c,d) =Σm(4
In the circuit shown below, the capacitor initially has a voltage across it 4 Volts (at t = 0). a. Write down the expression for V C (t) when the switch is closed. b. Writ
Find out Form factor and Peak factor: For the output of full wave rectifier, find out (a) RMS value, (b) Average value, (c) Form factor, and (d) Peak factor. S
can voltage regulation be negative?why?
Selection of Proper Fuse : Fuse is a safety device or a wire of metal in a cut-out which may be fused by an excessive current. The current drawn by an appliance is restricted by t
Switching characteristics during turn on A positive gate pulse between gate and cathodeis sufficient to turn on a thyrisotr. In this period thyristor changes its stat
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