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Theory of Computation
Finite Automata and Regular Language
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Push Down Automata and Context Free Language
Marks 1Marks 2
Undecidability
Marks 1Marks 2
Recursively Enumerable Language and Turing Machine
Marks 1Marks 2
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1
GATE CSE 2023
MCQ (More than One Correct Answer)
+1
-0

Which of the following statements is/are CORRECT?

A
The intersection of two regular languages is regular.
B
The intersection of two context-free languages is context-free.
C
The intersection of two recursive languages is recursive.
D
The intersection of two recursively enumerable languages is recursively enumerable.
2
GATE CSE 2022
MCQ (Single Correct Answer)
+1
-0.33

Which one of the following regular expressions correctly represents the language of the finite automation given below?

GATE CSE 2022 Theory of Computation - Finite Automata and Regular Language Question 18 English

A
ab*bab* + ba*aba*
B
(ab*b)* ab* + (ba*a)*ba*
C
(ab*b + ba*a)* (a* + b*)
D
(ba*a + ab*b)* (ab* + ba*)
3
GATE CSE 2021 Set 2
MCQ (Single Correct Answer)
+1
-0.33
Let L ⊆ {0,1}* be an arbitrary regular language accepted by a minimal DFA with k states. Which one of the following languages must necessarily be accepted by a minimal DFA with k states? 
A
{0,1}* - L
B
L.L
C
L - {01}
D
L âˆª {01}
4
GATE CSE 2021 Set 2
Numerical
+1
-0

Consider the following deterministic finite automaton (DFA).

GATE CSE 2021 Set 2 Theory of Computation - Finite Automata and Regular Language Question 22 English

The number of strings of length 8 accepted by  the above automaton is __________

Your input ____
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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