Which of the following best describes Lexical pattern matching?
Difficulty: Medium
About this MCQ
This Medium Compiler Design MCQ checks one syllabus fact.
The question is: “Which of the following best describes Lexical pattern matching?”
The accepted answer is C. The use of regular expressions by a lexical analyzer to define and recognize valid tokens.. The use of regular expressions by a lexical analyzer to define and recognize valid tokens is the person body or term that satisfies Which of the following best describes Lexical pattern matching option C Option A A program that loads an executable file into memory and prepares it for execution does not match the stem it is a near-miss used to catch incomplete recall of The use of regular expressions by a lexical analyzer to define and recognize valid tokens Option B A technique that compiles code into machine instructions at runtime rather than before execution does not match the stem it is a near-miss used to catch incomplete recall of The use of regular expressions by a lexical analyzer.
- A. A program that loads an executable file into memory and prepares it for execution.
Why not A: “A program that loads an executable file into memory and prepares it for execution.” is not correct. The accepted answer is C. The use of regular expressions by a lexical analyzer to define and recognize valid tokens.. The use of regular expressions by a lexical analyzer to define and recognize valid tokens is the person body or term that satisfies Which of the following best describes Lexical pa
- B. A technique that compiles code into machine instructions at runtime rather than before execution.
Why not B: “A technique that compiles code into machine instructions at runtime rather than before execution.” is not correct. The accepted answer is C. The use of regular expressions by a lexical analyzer to define and recognize valid tokens.. The use of regular expressions by a lexical analyzer to define and recognize valid tokens is the person body or term that satisfies Which of the following best describes Lexical pa
- C. The use of regular expressions by a lexical analyzer to define and recognize valid tokens. ✓
- D. A code optimization technique that examines a small set of adjacent instructions to replace them with a more efficient sequence.
Why not D: “A code optimization technique that examines a small set of adjacent instructions to replace them with a more efficient sequence.” is not correct. The accepted answer is C. The use of regular expressions by a lexical analyzer to define and recognize valid tokens.. The use of regular expressions by a lexical analyzer to define and recognize valid tokens is the person body or term that satisfies Which of the following best describes Lexical pa
Correct answer
C. The use of regular expressions by a lexical analyzer to define and recognize valid tokens.
Explanation
The use of regular expressions by a lexical analyzer to define and recognize valid tokens is the person body or term that satisfies Which of the following best describes Lexical pattern matching option C Option A A program that loads an executable file into memory and prepares it for execution does not match the stem it is a near-miss used to catch incomplete recall of The use of regular expressions by a lexical analyzer to define and recognize valid tokens Option B A technique that compiles code into machine instructions at runtime rather than before execution does not match the stem it is a near-miss used to catch incomplete recall of The use of regular expressions by a lexical analyzer.
Source: Compiler Design Official Reference Guide
Tags: computer science, compiler design, compilers, programming languages
Submitted by: MCQsHub Editorial
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