Explore topic-wise MCQs in Automata Theory.

This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Automata Theory knowledge and support exam preparation. Choose a topic below to get started.

1.

The following denotion belongs to which type of language:G=(V, T, P, S)

A. Regular grammar
B. Context free grammar
C. Context Sensitive grammar
D. All of the mentioned
Answer» C. Context Sensitive grammar
2.

abb*c denotes which of the following?

A. {abnc|n=0}
B. {abnc|n=1}
C. {anbc|n=0}
D. {abcn|n>0}
Answer» C. {anbc|n=0}
3.

Which of the following strings is not generated by the given grammar:S->SaSbS|e

A. aabb
B. abab
C. abaabb
D. None of the mentioned
Answer» E.
4.

Which of the following regular expression allows strings on {a,b}* with length n where n is a multiple of 4.a) (a+b+ab+ba+aa+bb+aba+bab+abab+baba)*b) (bbbb+aaa

A. (a+b+ab+ba+aa+bb+aba+bab+abab+baba)*b) (bbbb+aaaa)*c) ((a+b)(a+b)(a+b)(a+
B. (bbbb+aaaa)*
C. ((a+b)(a+b)(a+b)(a+b))*
D. None of the mentioned
Answer» D. None of the mentioned
5.

Which of the following strings do not belong the given regular expression?(a)*(a+cba)

A. aa
B. aaa
C. acba
D. acbacba
Answer» E.
6.

A language is accepted by a push down automata if it is:a) regularb) context freec) both (

A. regularb) context freec) both (a) and (
B. context free
C. both (a) and (b)
D. none of the mentioned
Answer» D. none of the mentioned
7.

Which of the following is analogous to the following?:NFA and NPDA

A. Regular language and Context Free language
B. Regular language and Context Sensitive language
C. Context free language and Context Sensitive language
D. None of the mentioned
Answer» B. Regular language and Context Sensitive language
8.

THE_FOLLOWING_DENOTION_BELONGS_TO_WHICH_TYPE_OF_LANGUAGE:?$

A.
B. Regular grammar
C. Context free grammar
D. Context Sensitive grammar
Answer» C. Context free grammar
9.

ABB*C_DENOTES_WHICH_OF_THE_FOLLOWING??$

A. {abnc|n=0}
B. {abnc|n=1}
C. {anbc|n=0}
D. {abcn|n>0}
Answer» C. {anbc|n=0}
10.

Which of the following regular expression allows strings on {a,b}* with length n where n is a multiple of 4.

A. (a+b+ab+ba+aa+bb+aba+bab+abab+baba)*
B. (bbbb+aaaa)*
C. ((a+b)(a+b)(a+b)(a+b))*
D. None of the mentioned
Answer» D. None of the mentioned
11.

Which of the following strings do not belong the given regular expression?

A. *(a+cba)
B. aa
C. aaa
D. acba
Answer» E.
12.

Which of the following is an incorrect regular expression identity?

A. R+f=R
B. eR=e
C. Rf=f
D. None of the mentioned
Answer» C. Rf=f
13.

A language is accepted by a push down automata if it is:

A. regular
B. context free
C. both (a) and (b)
D. none of the mentioned
Answer» D. none of the mentioned
14.

Which of the following relates to Chomsky hierarchy?

A. Regular<CFL<CSL<Unrestricted
B. CFL<CSL<Unrestricted<Regular
C. CSL<Unrestricted<CF<Regular
D. None of the mentioned
Answer» B. CFL<CSL<Unrestricted<Regular
15.

Let T={p, q, r, s, t}. The number of strings in S* of length 4 such that no symbols can be repeated.

A. 120
B. 625
C. 360
D. 36
Answer» C. 360
16.

Which of the following is analogous to the following?

A.
B. Regular language and Context Free language
C. Regular language and Context Sensitive language
Answer» B. Regular language and Context Free language