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MCQs

Total Questions : 97 | Page 8 of 10 pages
Question 71. The smallest integer that can be represented by an 8-bit number in 2's complement form is
  1.    -256
  2.    -128
  3.    -127
  4.    0
 Discuss Question
Answer: Option B. -> -128


-NA-


Question 72. A binary operation ⊕ on a set of integers is defined as x⊕y = x2 + y2 . Which one of the following statements is TRUE about ⊕?
  1.    Commutative but not associative
  2.    Both commutative and associative
  3.    Associative but not commutative
  4.    Neither commutative nor associative
 Discuss Question
Answer: Option A. -> Commutative but not associative


-NA-


Question 73. Suppose p is the number of cars per minute passing through a certain road junction between 5 PM and 6 PM, and p has a Poisson distribution with mean 3. What is the probability of observing fewer than 3 cars during any given minute in this interval?
  1.    8/(2e3)
  2.    9/(2e3)
  3.    17/(2e3)
  4.    26/(2e3)
 Discuss Question
Answer: Option C. -> 17/(2e3)


-NA-


Question 74. Relation R has eight attributes ABCDEFGH. Fields of R contain only atomic values. F={CH→G, A→BC, B→CFH, E→A, F→EG} is a set of functional dependencies (FDs) so that F+ is exactly the set of FDs that hold for R.How many candidate keys does the relation R have?
  1.    3
  2.    4
  3.    5
  4.    6
 Discuss Question
Answer: Option B. -> 4


-NA-


Question 75. Which one of the following options is the closest in meaning to the word given below? Nadir
  1.    Highest
  2.    Lowest
  3.    Medium
  4.    Integration
 Discuss Question
Answer: Option B. -> Lowest


-NA-


Question 76. What will be the maximum sum of 44, 42, 40, ...... ?
  1.    502
  2.    504
  3.    506
  4.    500
 Discuss Question
Answer: Option C. -> 506


-NA-


Question 77. Complete the sentence: Universalism is to particularism as diffuseness is to _______________.
  1.    specificity
  2.    neutrality
  3.    generality
  4.    adaptation
 Discuss Question
Answer: Option A. -> specificity


-NA-


Question 78. Relation R has eight attributes ABCDEFGH. Fields of R contain only atomic values. F={CH→G, A→BC, B→CFH, E→A, F→EG} is a set of functional dependencies (FDs) so that F+ is exactly the set of FDs that hold for R.The relation R is
  1.    in 1NF, but not in 2NF.
  2.    in 2NF, but not in 3NF.
  3.    in 3NF, but not in BCNF.
  4.    in BCNF.
 Discuss Question
Answer: Option A. -> in 1NF, but not in 2NF.


-NA-


Question 79. Were you a bird, you ___________________ in the sky.
  1.    would fly
  2.    shall fly
  3.    should fly
  4.    shall have flown
 Discuss Question
Answer: Option A. -> would fly


-NA-


Question 80. Choose the grammatically INCORRECT sentence:
  1.    He is of Asian origin.
  2.    They belonged to Africa.
  3.    She is an European.
  4.    They migrated from India to Australia.
 Discuss Question
Answer: Option C. -> She is an European.


-NA-


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