C Programming Questions Answers - Chapter 1

• 29. printf() belongs to which library of c

  1. stdlib.h
  2. stdio.h
  3. stdout.h
  4. stdoutput.h

  Answer And Explanation

  Answer: Option B

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• 30. A variable in c

  1. must have a valid datatype
  2. can't have a name same as keyword
  3. must have a name starting with a character
  4. All of above

  Answer And Explanation

  Answer: Option D

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• 31. What is correct order of precedence in C

  1. Addition, Division, Modulus
  2. Addition, Modulus, Division
  3. Multiplication, Substration, Modulus
  4. Modulus, Multiplication, Substration

  Answer And Explanation

  Answer: Option D

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• 32. What is true about fputs function

  1. write to a file
  2. takes two parameters
  3. requires a file pointer
  4. all of above

  Answer And Explanation

  Answer: Option D

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• 33. Adding to a pointer that points to an array will

  1. Cause an error
  2. Increase the value of the element that the pointer is pointing to
  3. Cause the pointer to point to the next element in the array
  4. None of above

  Answer And Explanation

  Answer: Option C

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• 34. Which is invalid name of identifier

  1. world
  2. addition23
  3. test_name
  4. factorial

  Answer And Explanation

  Answer: Option C

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• 35. What is dangling pointer in c

  1. if pointer is pointing to a memory location from where variable has been deleted
  2. if pointer is assigned to more than one variable
  3. if pointer is not defined properly
  4. none of above

  Answer And Explanation

  Answer: Option A

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