ISRO Computer Science (CSE) 2025 - Question 30

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Topic: Compiler Design

Which compiler phase receives tokenized output?

  • A. Lexical Analyser
  • B. Parser
  • C. Pre-processor
  • D. Assembler

Answer: B. Parser

Explanation: The Lexical Analyzer (Scanner) breaks the source code into a stream of tokens. This tokenized output is then fed into the Parser (Syntax Analyzer), which constructs a parse tree to verify the grammatical structure of the program.

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