Podcast
Questions and Answers
What is a token commonly associated with in programming languages?
What is a token commonly associated with in programming languages?
- A unit of meaningful data (correct)
- A syntax error
- A compilation step
- A parse tree structure
Which of the following describes a regular expression in relation to tokens?
Which of the following describes a regular expression in relation to tokens?
- A pattern that defines a token (correct)
- A static keyword
- A method for parsing strings
- A collection of tokens
What type of structure organizes the relationship between tokens during parsing?
What type of structure organizes the relationship between tokens during parsing?
- Parse tree (correct)
- Data table
- Syntax tree
- Keyword index
What could be an indication of a parse tree structure during the compilation process?
What could be an indication of a parse tree structure during the compilation process?
Which of the following is NOT a role of regular expressions in relation to tokens?
Which of the following is NOT a role of regular expressions in relation to tokens?
What does the parser do with tokens?
What does the parser do with tokens?
What is the purpose of the code optimization phase?
What is the purpose of the code optimization phase?
Which phase of the compiler generates an annotated syntax tree?
Which phase of the compiler generates an annotated syntax tree?
Which phase checks the compatibility of data types in expressions?
Which phase checks the compatibility of data types in expressions?
What is a regular language in the context of lexical analysis?
What is a regular language in the context of lexical analysis?
What is the first phase of a compiler?
What is the first phase of a compiler?
What does the syntax analyzer check during the syntax analysis phase?
What does the syntax analyzer check during the syntax analysis phase?
What is a symbol table used for in a compiler?
What is a symbol table used for in a compiler?
What does the code optimization phase aim to do?
What does the code optimization phase aim to do?
What is checked during semantic analysis?
What is checked during semantic analysis?
What does lexical analysis do in a compiler?
What does lexical analysis do in a compiler?
Which phase translates the intermediate code into machine code?
Which phase translates the intermediate code into machine code?
What is a lexeme in lexical analysis?
What is a lexeme in lexical analysis?
In which phase are comments and white-space eliminated?
In which phase are comments and white-space eliminated?
What does a lexical analyzer do if it finds an invalid token?
What does a lexical analyzer do if it finds an invalid token?
What is a keyword in programming?
What is a keyword in programming?
What type of token is used to perform operations in a program?
What type of token is used to perform operations in a program?
What is the purpose of a regular expression in lexical analysis?
What is the purpose of a regular expression in lexical analysis?
What does a semantic analyzer check for?
What does a semantic analyzer check for?
What does the code generation phase do?
What does the code generation phase do?
Which of the following is a task of the lexical analyzer?
Which of the following is a task of the lexical analyzer?
Flashcards
What does the parser do?
What does the parser do?
The parser constructs a parse tree, which represents the hierarchical structure of the code.
Code optimization purpose
Code optimization purpose
Code optimization aims to enhance program execution speed without wasting resources. It modifies the code to improve its efficiency.
'Get next token' function
'Get next token' function
The 'get next token' command in the lexical analyzer reads and identifies the next token from the source code.
Phase working with lexical analyzer
Phase working with lexical analyzer
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What does intermediate code represent?
What does intermediate code represent?
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Lexical Analysis
Lexical Analysis
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Invalid Token
Invalid Token
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Token
Token
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Keyword
Keyword
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Identifier
Identifier
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Operator
Operator
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Punctuation Token
Punctuation Token
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Regular Expression
Regular Expression
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Syntax Analysis
Syntax Analysis
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Parse Tree
Parse Tree
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Semantic Analysis
Semantic Analysis
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Symbol Table
Symbol Table
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Intermediate Code Generation
Intermediate Code Generation
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Code Optimization
Code Optimization
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Lexical Error
Lexical Error
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Study Notes
Compiler Question Bank
- Question 1: The first phase of a compiler is lexical analysis.
- Question 2: Lexical analysis scans source code to identify tokens.
- Question 3: A lexeme is a specific instance of a token.
- Question 4: Syntax analysis creates a parse tree from tokens.
- Question 5: Syntax analysis checks if tokens conform to the grammar rules.
- Question 6: Semantic analysis produces annotated syntax tree.
- Question 7: During semantic analysis, the validity of tokens and their relationships are checked.
- Question 8: Intermediate code generation translates source code to an abstract machine language.
- Question 9: Code optimization aims to improve the speed and efficiency of the code.
- Question 10: The code generation phase converts intermediate code to machine code.
- Question 11: A symbol table stores information about identifiers and their attributes.
- Question 12: Semantic analysis manages scopes in a program.
- Question 13: Lexical analysis removes comments and whitespace.
- Question 14: A lexical analyzer signals an error if an invalid token is found.
- Question 15: An example of a token in C is "<int, keyword>".
- Question 16: Keywords are reserved words with pre-defined meanings in programming languages.
- Question 17: Identifiers are user-defined names. An example in the provided dataset is value.
- Question 18: Operators perform operations in a program.
- Question 19: Punctuation tokens separate or structure code elements.
- Question 20: A regular expression describes valid token patterns.
- Question 21: A regular expression defines a pattern for valid strings or tokens.
- Question 22: Semantic analysis determines if the code adheres to the programming language’s grammar rules.
- Question 23: Identifiers are names given to variables or functions.
- Question 24: The code generation phase converts intermediate code into machine language.
- Question 25: Lexical analysis's role is to identify tokens in the source code.
- Question 26: The parser uses tokens to build a parsing tree.
- Question 27: Code optimization improves program execution speed without unnecessary resource use.
- Question 28: The "get next token" command in lexical analysis retrieves the next token from the source code.
- Question 29: Syntax analysis closely follows lexical analysis.
- Question 30: Intermediate code represents a program for an abstract machine.
- Question 31: Regular languages are defined using regular expressions.
- Question 32: Semantic analysis verifies data type compatibility within expressions.
- Question 33: An annotated syntax tree results from the syntax analysis phase.
- Question 34: A regular expression specifies a pattern for tokens.
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Description
This quiz covers essential concepts in compiler design, focusing on the various phases such as lexical analysis, syntax analysis, and semantic analysis. Test your knowledge about token identification, parse tree creation, and code generation processes. Perfect for students studying compiler construction in computer science courses.
