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MCQs

Total Questions : 457 | Page 23 of 46 pages
Question 221. The ASCII code is a 7-bit code for
  1.    letters
  2.    numbers
  3.    other symbols
  4.    All of the above
  5.    None of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 222. The 2's compliment of binary number 010111.1100 is
  1.    101001.11
  2.    101000.01
  3.    10111.0011
  4.    101000.0011
  5.    None of the above
 Discuss Question
Answer: Option B. -> 101000.01
Question 223. In boolean algebra, the times sign stands for the _____ operation
  1.    AND
  2.    OR
  3.    NAND
  4.    NOR
  5.    None of the above
 Discuss Question
Answer: Option A. -> AND
Question 224. What logic function is obtained by adding an inverter to the output of an AND gate?
  1.    OR
  2.    NAND
  3.    XOR
  4.    NOR
  5.    None of the above
 Discuss Question
Answer: Option B. -> NAND
Question 225. Conversion of an octal number 74328 to a binary number is
  1.    11110001101112
  2.    1111000110102
  3.    1100110101112
  4.    1111111110002
  5.    None of the above
 Discuss Question
Answer: Option B. -> 1111000110102
Question 226. Conversion of an octal number 1438 to hexadecimal number is
  1.    6316
  2.    6016
  3.    5016
  4.    5716
  5.    None of the above
 Discuss Question
Answer: Option A. -> 6316
Question 227. The memory cell of a dynamic RAM is simpler and smaller than the memory cell of a _____ RAM.
  1.    volatile
  2.    static
  3.    semiconductor
  4.    bipolar
  5.    None of the above
 Discuss Question
Answer: Option B. -> static
Question 228. A byte is consist of _____ bits
  1.    two
  2.    four
  3.    eight
  4.    ten
  5.    None of the above
 Discuss Question
Answer: Option C. -> eight
Question 229. What is the 1's complement of 0000 1111 0010 1101 number?
  1.    1111 0000 0010 1101
  2.    1111 0000 1101 0010
  3.    1111 1100 1010 1100
  4.    1001 0010 1010 1100
  5.    None of the above
 Discuss Question
Answer: Option B. -> 1111 0000 1101 0010
Question 230. Addition of 11012 and 10102 is
  1.    101012
  2.    110002
  3.    110112
  4.    101112
  5.    None of the above
 Discuss Question
Answer: Option D. -> 101112

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