Compiler Design MCQ Question and Answer

Question - 1

What is a compiler?

Program
Language
Hardware
Memory

Solutions

Question - 2

Compiler translates the source code to

Machine code
Binary code
Executable code
Both A & B

Solutions

Question - 3

What is the output of lexical analyzer?

A parse tree
A list of tokens
Intermediate code
Processed code

Solutions

Question - 4

A optimizing compiler

Is optimized to take less time for execution
Optimized the code
Is optimized to occupy less memory
None of the above

Solutions

Question - 5

Shift reduce parsers are

Bottom up parser
Top down parser
Both A & B
None of the above

Solutions

Question - 6

What is the action of parsing the source program into proper syntatic classes?

Syntax analysis
Lexical analysis
Interpretation analysis
General syntax analysis

Solutions

Question - 7

Which of the following is used for grouping of characters into tokens?

Parser
Code generator
Lexical analyzer
Code generator

Solutions

Question - 8

How many parts of compiler are there?

Solutions

Question - 9

____ is a process of finding a parse tree for a string of tokens.

Analysing
Recognizing
Parsing
Tokenizing

Solutions

Question - 10

Compiler should report the presence of __________ in the source program, in translation process.

Classes
Objects
Errors
Text

Solutions

Question - 11

A _________ is a software utility that translates code written in higher language into a low level language.

Text editor
Compiler
Interpreter
Converter

Solutions

Question - 12

A grammar that produces more than one parse tree for some sentence is called as

Ambiguous
Regular
Unambiguous
All of these

Solutions

Question - 13

Representing the syntax by a grammar is advantageous. What is the cause?

It is concise
It is accurate
Automation becomes easy
All of the above

Solutions

Question - 14

Grammar of the programming is checked at _______ phase of compiler.

Semantic analysis
Syntax analysis
Code optimization
Code generation

Solutions

Question - 15

A compiler translate high level programs into low level programs, which is called as

Beta code
Compiled code
Source code
Object code

Solutions

Question - 16

Compiler can check ________ error.

Logical
Content
Syntax
None of the above

Solutions

Question - 17

which is the permanent data base in the geneal model of Compiler ?

source code
literal table
identifier table
terminal table

Solutions

Question - 18

What is an interpreter?

An interpreter is a decoder which provides very efficient execution
An interpreter is a general purpose language providing very efficient execution
An interpreter does the conversion line by line as the program is run
An interpreter is the representation of the system being designed

Solutions

Question - 19

which of the following parsers is the most powerful ?

Canonical LR
SLR
LALR
Operator - precedence

Solutions

Question - 20

The translator program used in assembly language is called

Assembler
Interpreter
Compiler
Translator

Solutions

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