Phases of compiler Quiz

What is the main task of the lexical analysis phase?

• Syntax checking

• Token generation

• Intermediate code generation

• Code optimization

Which of the following tools is commonly used for lexical analysis?

• YACC

• Lex

• GCC

• Bison

Which of the following is an example of a token in programming?

• Variable name

• Keyword

• Operator

• All of the above

What is the output of the lexical analysis phase?

• Abstract syntax tree

• Tokens

• Symbol table

• Machine code

What is the primary goal of syntax analysis?

• Generate tokens

• Verify grammatical structure

• Optimize code

• Generate machine code

Which data structure is commonly used during syntax analysis?

• Parse tree

• Symbol table

• Stack

• Both A and C

Which type of grammar is typically used in syntax analysis?

• Context-sensitive grammar

• Regular grammar

• Context-free grammar

• Ambiguous grammar

Which parsing technique is top-down?

• LR parsing

• LL parsing

• Shift-reduce parsing

• CYK parsing

What is the main purpose of semantic analysis?

• Detect syntax errors

• Detect logical errors

• Ensure type correctness

• Optimize code

Which of the following is checked during semantic analysis?

• Variable declaration

• Function calls

• Type compatibility

• All of the above