 A directory of Objective Type Questions covering all the Computer Science subjects. Here you can access and discuss Multiple choice questions and answers for various compitative exams and interviews.

 121. ' a. A b. B c. C d. D

 122. Let X and Y be finite sets and f: X -> Y be a function. Which one of the following statements is TRUE? a. A b. B c. C d. D

 123. Consider the below diagram: a. 3m b. 3n c. 2m + 1 d. 2n + 1

 124. The following is the Hasse diagram of the poset [{a, b, c, d, e}, ≤] . The poset is a. not a lattice b. a lattice but not a distributive lattice c. a distributive lattice but not a Boolean algebra d. a Boolean algebra

 125. The binary operator ≠ is defined by the following truth table. Which one of the following is true about the binary operator ≠? a. Both commutative and associative b. Commutative but not associative c. Not commutative but associative d. Neither commutative nor associative

 126. Suppose L = {p, q, r, s, t} is a lattice represented by the following Hasse diagram. For any x, y ∈ L, not necessarily distinct, x ∨ y and x ∧ y are join and meet of x, y respectively. Let L^3 = {(x,y,z): x, y, z ∈ L} be the set of all ordered triplets of the elements of L. Let pr be the probability that an element (x,y,z) ∈ L^3 chosen equiprobably satisfies x ∨ (y ∧ z) = (x ∨ y) ∧ (x ∨ z). Then a. Pr = 0 b. Pr = 1 c. 0 < Pr ≤ 1/5 d. 1/5 < Pr < 1

 127. Fill in the blanks: a. 1 b. 2 c. 3 d. 4
 128. Which one of the following does NOT equal to  a. A b. B c. C d. D
 129. Let A be the 2 × 2 matrix with elements a11 = a12 = a21 = +1 and a22 = −1. Then the eigen values of the matrix A^19 are a. A b. B c. C d. D
 130. Consider the matrix as given below. Which one of the following options provides the CORRECT values of the eigenvalues of the matrix? a. 1, 4, 3 b. 3, 7, 3 c. 7, 3, 2 d. 1, 2, 3