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Welcome to the Context Free Languages MCQs Page

Dive deep into the fascinating world of Context Free Languages with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Context Free Languages, a crucial aspect of Formal Languages and Automata Theory. In this section, you will encounter a diverse range of MCQs that cover various aspects of Context Free Languages, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Formal Languages and Automata Theory.

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Check out the MCQs below to embark on an enriching journey through Context Free Languages. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Formal Languages and Automata Theory.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Context Free Languages. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Context Free Languages MCQs | Page 12 of 12

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Q111.
Which of the following is not a negative property of Context free languages?

a.

Intersection

b.

Complement

c.

both a and b

d.

None of the mentioned

Discuss
Answer: (c).both a and b
Q112.
The intersection of context free language and regular language is _________

a.

regular language

b.

context free language

c.

context sensitive language

d.

non of the mentioned

Discuss
Answer: (b).context free language
Q113.
Which of the following is regular?

a.

a^100b^100

b.

(a+b)*-{a^100b^100}

c.

both a and b

d.

None of the mentioned

Discuss
Answer: (c).both a and b
Q114.
Which of the following is not context free?

a.

{w: nA=nB=nC}

b.

{a*b*c*}

c.

{a^100b^100}

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q115.
Which of the following can be used to prove a language is not context free?

a.

Ardens theorem

b.

Power Construction method

c.

Regular Closure

d.

None of the mentioned

Discuss
Answer: (c).Regular Closure
Q116.
Which of the following are valid membership algorithms?

a.

CYK algorithm

b.

Exhaustive search parser

c.

both a and b

d.

None of the mentioned

Discuss
Answer: (c).both a and b
Q117.
Which of the following belong to the steps to prove emptiness?

a.

Remove useless variable

b.

Check if a start variable S is useless

c.

both a and b

d.

None of the mentioned

Discuss
Answer: (c).both a and b
Q118.
Which of the following is true for CYK Algorithm?

a.

Triangular Table

b.

Circular Chart

c.

Linked List

d.

None of the mentioned

Discuss
Answer: (a).Triangular Table
Q119.
Which of the following steps are wrong with respect to infiniteness problem?

a.

Remove useless variables

b.

Remove unit and epsilon production

c.

Create dependency graph for variables

d.

If there is a loop in the dependency graph the the language is finite else infinite

Discuss
Answer: (d).If there is a loop in the dependency graph the the language is finite else infinite
Q120.
State true or false:
Statement: Every context free language can be generated by a grammar which contains no useless non terminals.

a.

true

b.

false

c.

may be

d.

can't say

Discuss
Answer: (a).true
Page 12 of 12

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