Q. Consider the grammar
E → E + n | E × n | n

For a sentence n + n × n, the handles in the right-sentential form of the reduction are

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Q. The grammar A → AA | (A) | e is not suitable for predictive-parsing because the grammar is

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Q. Consider the grammar defined by the following production rules
S –> T * P

T –> U | T * U

P –> Q + P | Q

Q –> Id

U –> Id

Which one of the following is TRUE?

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Q. Find the TRUE statement?
I. There exist parsing algorithms for some programming languages which has O(3) complexity.

II. A programming language which allows recursion can be implemented

with static storage allocation.

III. No L-attributed definition can be evaluated in The framework

of bottom-up parsing.

IV. Code improving transformations can be performed at both intermediate code level and source

Language.

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Q. Match the following.
P. Regular expression 1. Syntax analysis

Q. Pushdown automata 2. Code generation

R. Dataflow analysis 3. Lexical analysis

S. Register allocation 4. Code optimization

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Q. Assume that the SLR parser for a grammar G has n1 states and the LALR parser for G has n2 states.

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Q. Consider a program P that consists of two source modules M1(contains reference to a function defined in M2) and M2 contained in two different files.

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Q. Given the following expression grammar:
E -> E * F | F+E | F

F -> F-F | id

which of the following is true?

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Q. Compute E.value for the root of the parse tree for the expression:2 # 3 & 5 # 6 &4.

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Q. Which of the following grammar rules violate the requirements of an operator grammar?
(i) P -> QR

(ii) P -> QsR

(iii) P -> ε

(iV) P -> QtRr

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Q. The process of assigning load addresses to the various parts of the program and adjusting the code and data in the program to reflect the assigned addresses is called

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

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