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Q. Illustrate basic working of Physical layer?
Physical layer: Physical layer is concerned with sending raw bits between source and destination nodes over a physical medium. Source and destination nodes have to agree on a number of factors.
Signal encoding: how are the bits 0 and 1 to be represented?
Medium: what is the medium used and its properties?
Bit synchronization: is the transmission asynchronous or synchronous?
Transmission type: whether the transmission is parallel or serial?
Transmission mode: is the transmission simplex, half-duplex or full duplex?
Topology: what is the network topology i.e. mesh, star, bus or ring?
A1->A2A3 A2->A3A1|b A3->A1A2|a
Q. Explain the following: a) Gray code b) Parity code c) Overflow Q. Give the counting up to 30 in Base 5. Q. Convert (175.6)8 into Gray code and Excess-3 code.
The decimal equivalent of (1100) 2 is ? Ans. (1100) 2 = (12) 10
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Give the truth table of S-R and D-flipflops. Ans: The Truth Table for S-R Flip-Flop is illustrated in Fig.(a) and truth table of D Flip-Flop is illustrated in Fig.(b)
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Explain Open source software? Open Source Software is software for which the underlying programming code is available to the users so that they might be read it, make changes t
Discuss anout variables and assignment statements in ruby
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