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Welcome to the Phases of Compiler MCQs Page

Dive deep into the fascinating world of Phases of Compiler with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Phases of Compiler, a crucial aspect of Systems Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Phases of Compiler, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Systems Programming.

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Check out the MCQs below to embark on an enriching journey through Phases of Compiler. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Systems Programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Phases of Compiler. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Phases of Compiler MCQs | Page 4 of 11

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Q31.
The lexical analyzer takes_________as input and produces a stream of_______as output.

a.

Source program, tokens

b.

Token, source program

c.

Either of the two

d.

None of the mentioned

Discuss
Answer: (a).Source program, tokens
Q32.
Parsing is also known as

a.

Lexical Analysis

b.

Syntax Analysis

c.

Semantic Analysis

d.

Code Generation

Discuss
Answer: (b).Syntax Analysis
Q33.
__________ a part of a compiler that takes as input a stream of characters and produces as output a stream of words along with their associated syntactic categories.

a.

Parser

b.

Optimizer

c.

Scanner

d.

None of the mentioned

Discuss
Answer: (c).Scanner
Q34.
_________an IR-to-IR transformer that tries to improve the IR program in some way.

a.

Optimizer

b.

Parser

c.

Both of the mentioned

d.

None of the mentioned

Discuss
Answer: (a).Optimizer
Q35.
_________a phase of a compiler that maps the IR program into the instruction set and the finite resources of the target machine.

a.

Optimizer

b.

Parser

c.

None of the mentioned

d.

Both of the mentioned

Discuss
Answer: (c).None of the mentioned
Q36.
In a compiler the module that checks every character of the source text is called

a.

The code generator

b.

The code optimizer

c.

The lexical analyzer

d.

The syntax analyzer

Discuss
Answer: (a).The code generator
Q37.
The context free grammar is ambiguous if

a.

The grammar contains non-terminals

b.

Produces more than one parse tree

c.

Production has two non-terminals side by side

d.

None of the mentioned

Discuss
Answer: (b).Produces more than one parse tree
Q38.
Another Name for Lexical Analyser

a.

Linear Phase

b.

Linear Analysis

c.

Scanning

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q39.
An individual token is called ________.

a.

Lexeme

b.

Lex

c.

Both of the mentioned

d.

None of the mentioned

Discuss
Answer: (a).Lexeme
Q40.
Which phase of the compiler is Lexical Analyser?

a.

First

b.

Second

c.

Third

d.

None of the mentioned

Discuss
Answer: (a).First
Page 4 of 11

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