Q. troff and nroff are _________ in Unix.

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Q. SGML stands for:

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Q. Markup Languages are not used for which of the following?

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Q. Which of the following is incorrect for HTML5 markup construct?

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Q. A CFG is ambiguous if

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Q. Which of the following are always unambiguous?

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Q. A CFG is not closed under

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Q. Which of the following is an real-world programming language ambiguity?

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Q. Which of the following is a parser for an ambiguous grammar?

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Q. A language that admits only ambiguous grammar:

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Q. Which of the following is an example of inherent ambiguous language?

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Q. State true or false:
Statement: R->R|T T->ε is an ambiguous grammar

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Q. In context to ambiguity, the number of times the following programming statement can be interpreted as:
Statement: if R then if T then P else V

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Q. CFGs can be parsed in polynomial time using__________

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Q. Suppose A->xBz and B->y, then the simplified grammar would be:

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Q. Given Grammar: S->A, A->aA, A->e, B->bA
Which among the following productions are Useless productions?

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Q. Given:
S->…->xAy->…->w

if ____________, then A is useful, else useless symbol.

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Q. Given:
S->aSb

S->e

S-> A

A->aA

B->C

C->D

The ratio of number of useless variables to number of useless production is:

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Q. Given grammar G:
S->aS|A|C

A->a

B->aa

C->aCb

Find the set of variables thet can produce strings only with the set of terminals.

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Q. Given grammar:
S->aS|A

A->a

B->aa

Find the number of variables reachable from the Starting Variable?

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