Discrete Math Interview Questions And Answers
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Refine your Discrete Math interview skills with our 46 critical questions. Each question is crafted to challenge your understanding and proficiency in Discrete Math. Suitable for all skill levels, these questions are essential for effective preparation. Don't miss out on our free PDF download, containing all 46 questions to help you succeed in your Discrete Math interview. It's an invaluable tool for reinforcing your knowledge and building confidence.
46 Discrete Math Questions and Answers:
Discrete Math Job Interview Questions Table of Contents:
1 :: A _______ is an ordered collection of objects.
a) Relation
b) Function
c) Set
d) Proposition
c) Set
Read More2 :: The set O of odd positive integers less than 10 can be expressed by ___________ .
a) {1, 2, 3}
b) {1, 3, 5, 7, 9}
c) {1, 2, 5, 9}
d) {1, 5, 7, 9, 11}
b) {1, 3, 5, 7, 9}
Read More3 :: What is Discrete Math?
Discrete mathematics is the study of mathematical structures that are fundamentally discrete rather than continuous.
Read More4 :: What is the Cartesian product of A = {1, 2} and B = {a, b}?
a) {(1, a), (1, b), (2, a), (b, b)}
b) {(1, 1), (2, 2), (a, a), (b, b)}
c) {(1, a), (2, a), (1, b), (2, b)}
d) {(1, 1), (a, a), (2, a), (1, b)}
c) {(1, a), (2, a), (1, b), (2, b)}
Read More6 :: The Cartesian Product B x A is equal to the Cartesian product A x B. Is it True or False?
a) True
b) False
b) False
Let A = {1, 2} and B = {a, b}. The Cartesian product A x B = {(1, a), (1, b), (2, a), (2, b)} and the Cartesian product B x A = {(a, 1), (a, 2), (b, 1), (b, 2)}. This is not equal to A x B.
Read MoreLet A = {1, 2} and B = {a, b}. The Cartesian product A x B = {(1, a), (1, b), (2, a), (2, b)} and the Cartesian product B x A = {(a, 1), (a, 2), (b, 1), (b, 2)}. This is not equal to A x B.
7 :: What is the cardinality of the set of odd positive integers less than 10?
a) 10
b) 5
c) 3
d) 20
b) 5
Read More8 :: Which of the following two sets are equal?
a) A = {1, 2} and B = {1}
b) A = {1, 2} and B = {1, 2, 3}
c) A = {1, 2, 3} and B = {2, 1, 3}
d) A = {1, 2, 4} and B = {1, 2, 3}
c) A = {1, 2, 3} and B = {2, 1, 3}
Read More9 :: What is the Cardinality of the Power set of the set {0, 1, 2}.
a) 8
b) 6
c) 7
d) 9
a) 8
Read More10 :: The members of the set S = {x | x is the square of an integer and x < 100} is _________________.
a) {0, 2, 4, 5, 9, 58, 49, 56, 99, 12}
b) {0, 1, 4, 9, 16, 25, 36, 49, 64, 81}
c) {1, 4, 9, 16, 25, 36, 64, 81, 85, 99}
d) {0, 1, 4, 9, 16, 25, 36, 49, 64, 121}
b) {0, 1, 4, 9, 16, 25, 36, 49, 64, 81}
Read More11 :: A function is said to be ______________, if and only if f(a) = f(b) implies that a = b for all a and b in the domain of f.
a) One-to-many
b) One-to-one
c) Many-to-many
d) Many-to-one
b) One-to-one
Read More12 :: The set of positive integers is _________ .
a) Infinite
b) Finite
c) Subset
d) Empty
a) Infinite
Read More14 :: Which of the following function f: Z X Z → Z is not onto?
a) f(a, b) = a + b
b) f(a, b) = a
c) f(a, b) = |b|
d) f(a, b) = a - b
c) f(a, b) = |b|
Read More15 :: The domain of the function that assign to each pair of integers the maximum of these two integers is ________.
a) N
b) Z
c) Z +
d) Z+ X Z+
d) Z+ X Z+
Read More16 :: Let f and g be the function from the set of integers to itself, defined by f(x) = 2x + 1 and g(x) = 3x + 4. Then the composition of f and g is ________.
a) 6x + 9
b) 6x + 7
c) 6x + 6
d) 6x + 8
a) 6x + 9
Read More18 :: The inverse of function f(x) = x3 + 2 is __________.
a) f -1 (y) = (y - 2) 1/2
b) f -1 (y) = (y - 2) 1/3
c) f -1 (y) = (y) 1/3
d) f -1 (y) = (y - 2)
b) f -1 (y) = (y - 2) 1/3
Read More19 :: The function f(x) = x3 is bijection from R to R. Is it True or False?
a) True
b) False
a) True
Read More20 :: The g -1({0}) for the function g(x)= ⌊x⌋ is ________.
a) {x | 0 ≤ x < 1}
b) {x | 0 < x ≤ 1}
c) {x | 0 < x < 1}
d) {x | 0 ≤ x ≤ 1}
d) {x | 0 ≤ x ≤ 1}
Read More21 :: The function f(x)=x+1 from the set of integers to itself is onto. Is it True or False?
a) True
b) False
a) True
Read More22 :: The intersection of the sets {1, 2, 5} and {1, 2, 6} is the set ___________.
a) {1, 2}
b) {5, 6}
c) {2, 5}
d) {1, 6}
a) {1, 2}
Read More23 :: The union of the sets {1, 2, 5} and {1, 2, 6} is the set _______________.
a) {1, 2, 6, 1}
b) {1, 2, 5, 6}
c) {1, 2, 1, 2}
d) {1, 5, 6, 3}
b) {1, 2, 5, 6}
Read More24 :: Which of the following two sets are disjoint?
a) {1, 3, 5} and {1, 3, 6}
b) {1, 2, 3} and {1, 2, 3}
c) {1, 3, 5} and {2, 3, 4}
d) {1, 3, 5} and {2, 4, 6}
d) {1, 3, 5} and {2, 4, 6}
Read More25 :: Two sets are called disjoint if there _____________ is the empty set.
a) Union
b) Difference
c) Intersection
d) Complement
c) Intersection
Read More