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MCQs

Total Questions : 275 | Page 7 of 28 pages
Question 61. Which of the following pair of gates can form a latch?
  1.    A pair of cross coupled OR
  2.    A pair of cross copled AND
  3.    A pair of cross coupled NAND
  4.    A cross coupled NAND/OR
 Discuss Question
Answer: Option C. -> A pair of cross coupled NAND
Question 62. In a computer the data transfer between hard disk and CPU is nearly the same as that between diskette and CPU.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 63. When the write enable input is not asserted, the gated D latch _________ its output.
  1.    Can not change
  2.    Clears
  3.    Complements
  4.    Sets
 Discuss Question
Answer: Option A. -> Can not change
Question 64. Assertion (A): Each memory chip has its own address latch. Reason (R): ALE signal comes out of microprocessor 8085 and goes to memory chip.
  1.    Both A and R are correct and R is correct explanation of A
  2.    A is wrong R is correct
  3.    A is correct R is wrong
  4.    Both A and R are correct but R is not correct explanation of A
 Discuss Question
Answer: Option B. -> A is wrong R is correct
Question 65. Which of the following is a valid integer constant?
  1.    127
  2.    127
  3.    127
  4.    125 + 3
 Discuss Question
Answer: Option A. -> 127
Question 66. For a memory with a 16-bit address space, the addressability is
  1.    Cannot be determined
  2.    16 bits
  3.    2^16 bits
  4.    8 bits
 Discuss Question
Answer: Option A. -> Cannot be determined
Question 67. Internet is a worldwide network of computers where most of the information is freely available.
  1.    False
  2.    True
 Discuss Question
Answer: Option B. -> True
Question 68. In 8085 which addressing mode is also called inherent addressing?
  1.    Immediate
  2.    Register
  3.    Direct
  4.    Implicit
 Discuss Question
Answer: Option D. -> Implicit
Question 69. In 8085
  1.    P flag is reset when the result has odd parity
  2.    P flag is set when the result has even parity
  3.    P flag is set when the result has odd parity
  4.    P flag is reset when the result has even parity
 Discuss Question
Answer: Option B. -> P flag is set when the result has even parity
Question 70. In C the keywords are also called
  1.    Reserved words
  2.    Special words
  3.    Character words
  4.    Class words
 Discuss Question
Answer: Option A. -> Reserved words

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