Lexical Analysis Quiz

What is the process of reading characters from a source program called?

• Semantic analysis

• Lexical analysis

• Syntax analysis

• Code generation

What are tokens in programming languages?

• Sequences of characters with meaning

• Errors in code

• Variable names only

• Comments in code

Which of the following is NOT a type of token?

• Punctuation

• Comments

• Operators

• Constants

What does a lexical analyzer produce as output?

• Machine code

• Stream of tokens

• Error messages

• Source code

What is a lexeme?

• A type of token

• A type of error

• A sequence of characters forming a token

• A programming language

What does the scanner NOT check for?

• Malformed entities

• Unrecognized symbols

• Garbled sequences

• Valid tokens

What is the purpose of the 'loop and switch' implementation?

• To optimize code

• To generate machine code

• To read characters and process them

• To create a graphical interface

What is the role of regular expressions in scanning?

• To store variables

• To generate machine code

• To define valid tokens

• To create user interfaces

What does an NFA stand for?

• Non-Finite Automaton

• Non-Functional Algorithm

• Nondeterministic Finite Automaton

• Numerical Finite Automaton

Which programming language is mentioned as a case study?

• C++

• FORTRAN I

• Java

• Python