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Computer science

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UGC-NET/JRF-JUNE-2020

CURRENT VACCENCY FOR COMPUTER SCIENCE

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A positive AND gate is also a negative(a) NAND gate(b) NOR gate (c) AND gate(d) Or gate

Which of the following is termed as minimum error code? (a) Binary code(b) Gray code (c) Excess 3 code(d) Octal code

. Which of the following 4 bit combination are invalid in the BCD code? (a) 0010(b) 0101 (c) 110(d) 1100

(1101101.1011)2 = ()10

(a) 109.6875(b) 109.7865 (c) 109.6880(d) 119.08

Which statement is true from multiplexer?

(a) Number of input lines equals to number of outputs lines

(b) Number of input lines less than number of output lines

(c) Number of input lines greater than the number of output lines

(d) Any number of input and output lines

multiplexer, the number of input lines depend on

(a) The number of output lines

(b) The number of selector lines

(c) The number of gates

(d) None of these

The flip-flop can be constructed using only

(a) AND gates

(b) OR gates

(c) Not gates

(d) Universal gates

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