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Compiler Design : Nuclear Quiz 1

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Question 1

A syntax tree:

Question 2

Which of the following derivations does a top-down parser use while parsing an input string?

Question 3

Find the total number of tokens generated in the following statement.
printf(“\n Square of %d is %d “,a, b);

Question 4

In a compiler _______________ checks every character of the source text.

Question 5

What are the strings generated by the following grammar:
S → aA / bB

A → a / b

B → c / d

Question 6

Which of the following is operator precedence grammar

1) E → E + E |E * E | id

2) S → A+B; A → a; B → b | ϵ

Question 7

A three-address code has _________ address locations to calculate the expression.

Question 8

Which of the following is not a machine-independent code optimization technique?

Question 9

Which parser is the most powerful:

Question 10

If in a parse tree, node value is determined by the attribute value at child nodes then it is called as:

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Jul 25GATE & PSU CS