Which phase of the compiler translates the high-level source code into intermediate code?
a) Lexical Analysis
b) Syntax Analysis
c) Semantic Analysis
d) Intermediate Code Generation
Correct Answer: d) Intermediate Code Generation
Which data structure is typically used for implementing the symbol table in a compiler?
a) Array
b) Linked List
c) Hash Table
d) Binary Search Tree
Correct Answer: c) Hash Table
Which phase of the compiler checks for the validity of the code in terms of the language syntax?
a) Lexical Analysis
b) Syntax Analysis
c) Semantic Analysis
d) Code Optimization
Correct Answer: b) Syntax Analysis
What does the lexer produce as output during the lexical analysis phase of compilation?
a) Parse Tree
b) Intermediate Code
c) Tokens
d) Symbol Table
Correct Answer: c) Tokens
What is the purpose of the semantic analysis phase in compiler design?
a) Generating intermediate code
b) Checking for lexical errors
c) Checking for syntactic errors
d) Checking for semantic errors
Correct Answer: d) Checking for semantic errors
Which of the following is not a type of parser used in compiler design?
a) Recursive Descent Parser
b) LL Parser
c) LR Parser
d) LD Parser
Correct Answer: d) LD Parser
What is the primary function of the syntax-directed translation scheme in compiler design?
a) Generating intermediate code
b) Translating syntax into semantic actions
c) Optimizing the generated code
d) Generating machine code
Correct Answer: b) Translating syntax into semantic actions
Which phase of the compiler resolves the references to the variables and checks their data types?
a) Lexical Analysis
b) Syntax Analysis
c) Semantic Analysis
d) Code Generation
Correct Answer: c) Semantic Analysis
What is the main goal of the code optimization phase in compiler design?
a) Reducing the size of the source code
b) Improving the efficiency of the generated code
c) Removing lexical errors
d) Resolving syntax errors
Correct Answer: b) Improving the efficiency of the generated code
Which of the following is not a property of compiler front end?
a) Lexical Analysis
b) Semantic Analysis
c) Intermediate Code Generation
d) Code Optimization
Correct Answer: d) Code Optimization
Which phase of the compiler is responsible for generating the Abstract Syntax Tree (AST)?
a) Lexical Analysis
b) Syntax Analysis
c) Semantic Analysis
d) Intermediate Code Generation
Correct Answer: b) Syntax Analysis
Which of the following statements about syntax-directed translation is true?
a) It generates intermediate code directly from the source code.
b) It translates the high-level source code into machine code.
c) It associates semantic actions with syntax productions.
d) It performs lexical analysis.
Correct Answer: c) It associates semantic actions with syntax productions.
Which of the following is not a part of the lexical analysis phase?
a) Tokenization
b) Identifying keywords
c) Parsing the source code
d) Removing comments
Correct Answer: c) Parsing the source code
What is the primary task of the symbol table in a compiler?
a) Tokenizing the input source code
b) Storing information about identifiers and their attributes
c) Generating machine code
d) Optimizing the code
Correct Answer: b) Storing information about identifiers and their attributes
Which phase of the compiler generates the target code from the intermediate code?
a) Lexical Analysis
b) Syntax Analysis
c) Semantic Analysis
d) Code Generation
Correct Answer: d) Code Generation
Which of the following is a top-down parsing technique?
a) LL Parser
b) LR Parser
c) SLR Parser
d) LALR Parser
Correct Answer: a) LL Parser
Which of the following is not a part of the lexical analysis phase?
a) Removing white spaces and comments
b) Identifying tokens
c) Generating intermediate code
d) Identifying literals
Correct Answer: c) Generating intermediate code
Which of the following is not an attribute of tokens generated during lexical analysis?
a) Token Type
b) Value
c) Lexeme
d) Scope
Correct Answer: d) Scope
Which phase of the compiler optimizes the intermediate code to produce efficient target code?
a) Lexical Analysis
b) Syntax Analysis
c) Semantic Analysis
d) Code Optimization
Correct Answer: d) Code Optimization
Which of the following is not a part of the semantic analysis phase?
a) Type Checking
b) Error Detection
c) Symbol Table Creation
d) Lexical Analysis
Correct Answer: d) Lexical Analysis
Which of the following parsing techniques can handle a larger class of grammars?
a) LL Parser
b) SLR Parser
c) LR Parser
d) LALR Parser
Correct Answer: c) LR Parser
What is the purpose of the lexer in compiler design?
a) Generating intermediate code
b) Converting source code into tokens
c) Translating source code into machine code
d) Optimizing code
Correct Answer: b) Converting source code into tokens
Which of the following is not a part of the semantic analysis phase?
a) Type Checking
b) Symbol Table Management
c) Syntax Checking
d) Intermediate Code Generation
Correct Answer: c) Syntax Checking
Which of the following is not a part of the syntax analysis phase?
a) Lexical Analysis
b) Syntax Checking
c) Semantic Analysis
d) Error Handling
Correct Answer: c) Semantic Analysis
What does the syntax analysis phase of the compiler produce as output?
a) Tokens
b) Abstract Syntax Tree
c) Intermediate Code
d) Symbol Table
Correct Answer: b) Abstract Syntax Tree
Which of the following parsing techniques is more efficient but less powerful?
a) LL Parser
b) SLR Parser
c) LR Parser
d) LALR Parser
Correct Answer: b) SLR Parser
Which phase of the compiler detects and reports errors in the source code?
a) Lexical Analysis
b) Syntax Analysis
c) Semantic Analysis
d) Error Handling
Correct Answer: d) Error Handling
Which of the following is not a part of the code generation phase?
a) Register Allocation
b) Instruction Selection
c) Syntax Analysis
d) Peephole Optimization
Correct Answer: c) Syntax Analysis
Which of the following is not a part of the lexical analysis phase?
a) Removing white spaces
b) Identifying keywords
c) Identifying literals
d) Parsing the source code
Correct Answer: d) Parsing the source code
Which of the following is not a part of the syntax analysis phase?
a) Lexical Analysis
b) Syntax Checking
c) Error Handling
d) Semantic Analysis
Correct Answer: d) Semantic Analysis
Which of the following is not an optimization technique used in the code optimization phase?
a) Dead Code Elimination
b) Constant Folding
c) Register Allocation
d) Lexical Analysis
Correct Answer: d) Lexical Analysis
Which phase of the compiler translates the source code into an intermediate representation?
a) Lexical Analysis
b) Syntax Analysis
c) Semantic Analysis
d) Intermediate Code Generation
Correct Answer: d) Intermediate Code Generation
Which phase of the compiler assigns types to the variables and expressions?
a) Lexical Analysis
b) Syntax Analysis
c) Semantic Analysis
d) Intermediate Code Generation
Correct Answer: c) Semantic Analysis
Which of the following parsing techniques is used in recursive descent parsing?
a) LL Parser
b) LR Parser
c) SLR Parser
d) LALR Parser
Correct Answer: a) LL Parser
Which of the following parsing techniques is used in the bottom-up parsing?
a) LL Parser
b) LR Parser
c) SLR Parser
d) LALR Parser
Correct Answer: b) LR Parser
Which of the following is not an attribute of tokens generated during lexical analysis?
a) Token Type
b) Value
c) Lexeme
d) Scope
Correct Answer: d) Scope
Which phase of the compiler checks whether the program follows the rules of the language?
a) Lexical Analysis
b) Syntax Analysis
c) Semantic Analysis
d) Intermediate Code Generation
Correct Answer: b) Syntax Analysis
Which of the following is not a part of the lexical analysis phase?
a) Tokenization
b) Identifying keywords
c) Parsing the source code
d) Removing comments
Correct Answer: c) Parsing the source code
Which of the following is not a property of compiler front end?
a) Lexical Analysis
b) Semantic Analysis
c) Intermediate Code Generation
d) Code Optimization
Correct Answer: d) Code Optimization
Which phase of the compiler generates the target code from the intermediate code?
a) Lexical Analysis
b) Syntax Analysis
c) Semantic Analysis
d) Code Generation
Correct Answer: d) Code Generation
Which of the following parsing techniques can handle a larger class of grammars?
a) LL Parser
b) SLR Parser
c) LR Parser
d) LALR Parser
Correct Answer: c) LR Parser
Which phase of the compiler is responsible for generating the Abstract Syntax Tree (AST)?
a) Lexical Analysis
b) Syntax Analysis
c) Semantic Analysis
d) Intermediate Code Generation
Correct Answer: b) Syntax Analysis
Which of the following is a top-down parsing technique?
a) LL Parser
b) LR Parser
c) SLR Parser
d) LALR Parser
Correct Answer: a) LL Parser
Which phase of the compiler optimizes the intermediate code to produce efficient target code?
a) Lexical Analysis
b) Syntax Analysis
c) Semantic Analysis
d) Code Optimization
Correct Answer: d) Code Optimization
What is the purpose of the lexer in compiler design?
a) Generating intermediate code
b) Converting source code into tokens
c) Translating source code into machine code
d) Optimizing code
Correct Answer: b) Converting source code into tokens
Which of the following is not a part of the semantic analysis phase?
a) Type Checking
b) Symbol Table Management
c) Syntax Checking
d) Intermediate Code Generation
Correct Answer: c) Syntax Checking
Which phase of the compiler detects and reports errors in the source code?
a) Lexical Analysis
b) Syntax Analysis
c) Semantic Analysis
d) Error Handling
Correct Answer: d) Error Handling
Which of the following is not a part of the code generation phase?
a) Register Allocation
b) Instruction Selection
c) Syntax Analysis
d) Peephole Optimization
Correct Answer: c) Syntax Analysis
Which of the following is not a part of the lexical analysis phase?
a) Removing white spaces
b) Identifying keywords
c) Identifying literals
d) Parsing the source code
Correct Answer: d) Parsing the source code
Which of the following is not a part of the syntax analysis phase?
a) Lexical Analysis
b) Syntax Checking
c) Error Handling
d) Semantic Analysis
Correct Answer: d) Semantic Analysis
