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Variable Names C Questions And Answers

Here you can find Variable Names C Questions and Answers.

Why Variable Names C Questions and Answers Required?

In this Variable Names C Questions and Answers section you can learn and practice Variable Names C Questions and Answers to improve your skills in order to face technical inerview conducted by Banks. By Practicing these interview questions, you can easily crack any Bank Exams interview.

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Variable Names C Questions & Answers

1. C99 standard guarantees uniqueness of ____ characters for internal names.

Variable Names C Questions & Answers

2. C99 standard guarantess uniqueness of _____ characters for external names.

Variable Names C Questions & Answers

3. Which of the following is not a valid variable name declaration?

Variable Names C Questions & Answers

4. Which of the following is not a valid variable name declaration?

Variable Names C Questions & Answers

5. Variable Names C beginning with underscore is not encouraged. Why?

Variable Names C Questions & Answers

6. All keywords in C are in?

Variable Names C Questions & Answers

7. Variable name resolving (number of significant characters for uniqueness of variable) depends on?

Variable Names C Questions & Answers

8. Which of the following is not a valid C variable name?

Variable Names C Questions & Answers

9. Which of the following is true for Variable Names C in C?

Variable Names C Questions & Answers

10. Which is valid C expression?

Home EngineeringComputer Science & EngineeringC Multiple Choice Questions & AnswersVariable Names

Variable Names - C Multiple Choice Questions & Answers

This is the c programming questions and answers section on "C Variables" with explanation for various interview, competitive examination and entrance test. Solved examples with detailed answer description, explanation are given and it would be easy to understand.

Variable Names C Questions

Online Test Name Variable Names
Exam Type Multiple Choice Questions
Category Computer Science Engineering Quiz
Number of Questions 16
1. C99 standard guarantees uniqueness of ____ characters for internal names.
  • A. 31
  • B. 63
  • C. 12
  • D. 14
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Answer & Explanation

Answer: Option B

Explanation:

ISO C99 compiler may consider only first 63 characters for internal.

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2. C99 standard guarantess uniqueness of _____ characters for external names.
  • A. 31
  • B. 6
  • C. 12
  • D. 14
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Answer & Explanation

Answer: Option A

Explanation:

ISO C99 compiler may consider only first 31 characters for external variables having 31 characters due to which it may not be unique.

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3. Which of the following is not a valid variable name declaration?
  • A. int __a3;
  • B. int __3a;
  • C. int __A3;
  • D. None of the mentioned.
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Answer & Explanation

Answer: Option D

Explanation:

None.

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4. Which of the following is not a valid variable name declaration?
  • A. int _a3;
  • B. int a_3;
  • C. int 3_a;
  • D. int _3a
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Answer & Explanation

Answer: Option C

Explanation:

Variable name cannot start with a digit.

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5. Variable names beginning with underscore is not encouraged. Why?
  • A. It is not standardized
  • B. To avoid conflicts since assemblers and loaders use such names
  • C. To avoid conflicts since library routines use such names
  • D. To avoid conflicts with environment variables of an operating system
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Answer & Explanation

Answer: Option C

Explanation:

None.

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