MCQ
Q.
If a
Correct Answer: A
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MCQ
1.
Which one of the following languages over the alphabet {0, 1} is described by the regular expression: (0+1)*0(0+1)*0(0+1)*?
Correct Answer: C
strings with at least two 0
MCQ
2.
The length of the shortest string NOT in the language (over ? = {a, b}) of the following regular expression is _____________
a*b*(ba)*a*
Correct Answer: B
MCQ
3.
Which of them are not left associative ?
Correct Answer: C
*, concatenation (.), and | (pipe sign) are left associative
MCQ
4.
How many minimum states are required to find whether a string has odd number of 0
Correct Answer: B
MCQ
5.
Which of the following statement is correct?
Correct Answer: B
Context-free languages are closed under the following operations. The Kleene star, the concatenation, the union and the intersection.
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