Q. Context-free Grammar (CFG) can be recognized by

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Q. A context free grammar is:

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Q. Let e: B˄m→B˄n is a group code. The minimum distance of ‘e’ is equal to:

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Q. A WFF that is equivalent to the WFF x=>y is:

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Q. The regular expression given below describes:

r=(1+01)*(0+λ)

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Q. Which of the following language is regular?

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Q. Which of the regular expressions corresponds to this grammar ?

S → AB / AS, A → a / aA, B → b

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Q. Which of the following strings is in the language defined by grammar S→0A, A→1A/0A/1

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Q. The logic of pumping lemma is a good example of:

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Q. Let A = {x | -1< x< 1} = B. The function f(x)=x/2 from A to B is:

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Q. Which sentence can be generated by S→d/bA, A→d/ccA:

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Q. Regular expression a+b denotes the set:

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Q. Which of the following is not true?

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Q. Identify the language which is not context - free.

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Q. The context-free languages are closed for:

(i) Intersection                          (ii) Union
(iii) Complementation             (iv) Kleene Star

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Q. Grammars that can be translated to DFAs:

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Q. The language accepted by a Push down Automata:

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Q. In parallel algorithm design, the process of grouping tasks into larger tasks in order to improve performance:

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Q. Recursive Descent Parsers are a type of:

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Q. If language L={0,1}*, then the reversed language L^R =

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