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COMPUTER SCIENCE

Quiz by Varsha Tiwari

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51 questions
Show answers
  • Q1

    1. The law which represents the Boolean equation A+Aꞌ =1 is:

    Complementarity Law

    Distributive Law

    Absorption Law

    Associative Law

    10s
  • Q2

    2. The dual of the Boolean equation (X·Y)+0 =X·Y is:

    (X+Y).1= X+Y

    (X+Y)+0=X·Y

    X+Y+0

    X·Y+0=X·Y

    10s
  • Q3

    3. If A=1, B=0,C=1 and D=0,then the minterm will be:

    A’+B+C+D’

    AB’C’D..

    AB’CD’

    A+B’+C’+D

    10s
  • Q4

    4. The compliment of the Boolean expression F(P,Q,R)=(P +Q)+R’ is:

    (P+Q)+R’

    P’+Q’+R’

    P’Q’R

    P+(Q’+R’)

    10s
  • Q5

    5. The propositional operator <=> represents:

    Negation

    Equivalence

    Conjunction

    Implication

    10s
  • Q6

    6. Full Adders are used for:

    Data transmission

    Converting Binary to Decimal

    Converting Decimal to Binary

    Adding three bits

    10s
  • Q7

    7. NOR gate is formed by the combinations of:

    OR gate and NOT gate

    AND gate and OR gate

    NAND gate and NOT gate

    AND gate and NOT gate

    10s
  • Q8

    8. The combinational circuit which has n inputs and 2n outputs:

    Multiplexer

    Decoder

    Full Adder

    Half Adder

    10s
  • Q9

    9. The Octet group in a Karnaugh’s map eliminates:

    Three Variables

    Two variables

    Four variables

    One variable

    10s
  • Q10

    10. The proposition (a→b) is represented by:

    (a'+b’)·(a+b)

    a'b’+ ab

    a’+b

    None of the above

    10s
  • Q11

    11. If the input in a decoder is AB’C’D,then the decimal equivalent output will be:

    9

    10

    5

    8

    10s
  • Q12

    12. A square matrix M[ ][ ] consists of 100 elements and the address of M[4][8] is 2032. If the base address at M[0][0] is 1840, determine the memory occupied by each element when the matrix is stored in row major wise.

    3

    None of the above

    2

    4

    10s
  • Q13

    13. Given proposition P =>Q ,answer the following questions: a. The converse of the proposition is:

    Q=>P

    Q=>~P

    ~P=>~Q

    ~Q=>~P

    10s
  • Q14

    13 b. The contra-positive of the proposition is:

    Q=>P

    ~P=>Q

    ~Q=>~P

    ~Q=>P

    10s
  • Q15

    14. The reduced expression for the Boolean expression F(X,Y,Z)=π(0,1,2,3,4,5,6,7) is:

    0

    1

    XY’+X’Y

    None of the above

    10s

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