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1
GATE CSE 2025 Set 1
MCQ (More than One Correct Answer)
+1
-0

Let $X$ be a 3-variable Boolean function that produces output as ' 1 ' when at least two of the input variables are ' 1 '. Which of the following statement(s) is/are CORRECT, where $a, b, c, d, e$ are Boolean variables?

A
$X(a, b, X(c, d, e))=X(X(a, b, c), d, e)$
B
$X(a, b, X(a, b, c))=X(a, b, c)$
C
$X(a, b, X(a, c, d))=(X(a, b, a)$ AND $X(c, d, c))$
D
$X(a, b, c)=X(a, X(a, b, c), X(a, c, c))$
2
GATE CSE 2024 Set 2
MCQ (More than One Correct Answer)
+1
-0

For a Boolean variable x, which of the following statements is/are FALSE?

A

x . 1 = x

B

x + 1 = x

C

x . x = 0

D

x + x̄ = 1

3
GATE CSE 2019
MCQ (Single Correct Answer)
+1
-0.33
Which one of the following is NOT a valid identity?
A
(x ⊕ y) ⊕ z = x ⊕ (y ⊕ z)
B
(x + y) ⊕ z = x ⊕ (y + z)
C
x ⊕ y = x + y, if xy = 0
D
x ⊕ y = (xy + x'y')'
4
GATE CSE 2016 Set 2
MCQ (Single Correct Answer)
+1
-0.3
Let, $${x_1} \oplus {x_2} \oplus {x_3} \oplus {x_4} = 0$$ where $${x_1},\,{x_2},\,{x_3},\,{x_4}$$ are Boolean Variables, and $$ \oplus $$ is the $$XOR$$ operator.

Which one of the following must always be TRUE?

A
$${x_1}{x_2}{x_3}{x_4} = 0$$
B
$${x_1}{x_3} + {x_2} = 0$$
C
$${\overline x _1} \oplus {\overline x _3} = {\overline x _2} \oplus {\overline x _4}$$
D
$${x_1} + {x_2} + {x_3} + {x_4} = 0$$
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Questions Asked from Marks 1
GATE CSE 2025 Set 2 (1) GATE CSE 2025 Set 1 (1) GATE CSE 2024 Set 2 (1) GATE CSE 2019 (1) GATE CSE 2016 Set 2 (1) GATE CSE 2016 Set 1 (1) GATE CSE 2015 Set 3 (1) GATE CSE 2014 Set 3 (1) GATE CSE 2014 Set 2 (1) GATE CSE 2014 Set 1 (1) GATE CSE 2013 (1) GATE CSE 2011 (2) GATE CSE 2010 (1) GATE CSE 2009 (1) GATE CSE 2008 (1) GATE CSE 2007 (1) GATE CSE 2004 (1) GATE CSE 1997 (1)
GATE CSE Subjects
Theory of Computation
Operating Systems
Algorithms
Digital Logic
Database Management System
Data Structures
Computer Networks
Software Engineering
Compiler Design
Web Technologies
General Aptitude
Discrete Mathematics
Programming Languages
Computer Organization