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CS 606 Quiz

 

Can a DFA simulate NFA?

Yes

No

Sometimes

Depend upon nfa

 

____________________ phase which supports macro substitution and conditional compilation.

Semantic

Syntax

Preprocessing

None

 

Which of the statement is true about Regular Languages?

Regular Languages are the most popular for specifying tokens.

Regular Languages are based on simple and useful theory.

Regular Languages are easy to understand.

All of the given

 

Lexer and scanner are two different phases of compiler

True

False

 

Lexical Analyzer generator ________________ is written in Java.

Flex

Jlex

Complex

None of the given

 

In a transition table cells of the table contain the ________ state.

Reject state

Next state

Previous state

None of the given

 

The transition graph for an NFA that recognizes the language ( a | b)*abb will have following set of states.

{0}

{0,1}

{0,1,2}

{0,1,2,3}

 

Front end of two pass compiler takes_________________ as input.

Source code

Intermediate representation

Machine code

None

 

In multi pass compiler during the first pass it gathers information about ___________________ .

Declarations

Bindings

Static information

None

 

Functions of Lexical analyzer are?

Removing white space

Removing constants, identifiers and keywords

Removing comments

All of the given

 


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