C Programming MCQs with answers Page - 19

Here, you will find a collection of MCQ questions on C Programming. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. Variables of type auto, static and extern are all stored in?

  • (A) ROM
  • (B) RAM
  • (C) CPU
  • (D) Compiler

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Q. Which among the following is a Local Variable?

  • (A) register
  • (B) auto
  • (C) static
  • (D) extern

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Q. Which among the following is a Global Variable?

  • (A) auto
  • (B) register
  • (C) static
  • (D) extern

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Q. Choose a correct statement about static variable.

  • (A) A static global variable can be accessed in other files.
  • (B) A static global variable can be used only in a file in which it is declared.
  • (C) A static global variable can not be declared without extern keyword.
  • (D) Default value of a static variable is -1.

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Q. Choose right statement

Code: 
register float a = 3.14f;
  • (A) Variable a is stored in CPU registers for fast access.
  • (B) Variable a is converted to int and then stored in a CPU register.
  • (C) register Storage Class is ignored and treated as auto float a = 3.14f;
  • (D) You get a compiler error as you can not store non integer value in a CPU register.

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Q. What is the difference between Declaration and Definition.?

  • (A) Declaration does allocate memory for a variable. Definition does allocate memory for a variable.
  • (B) Declaration does allocate memory for a variable. Definition does not allocate memory for a variable.
  • (C) Declaration does not allocate memory for a variable. Definition does allocate memory for a variable.
  • (D) Declaration does not allocate memory for a variable. Definition does not allocate memory for a variable.

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Q. Choose a right statement.

  • (A) A non static global variable can not be used in included files.
  • (B) A non static global variable can be used or referred to inside included files.
  • (C) A non static global variable does not live till the end of program execution.
  • (D) None of the above

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Q. Choose a right statement.

  • (A) Redeclaration of a variable is Ok.
  • (B) Redefinition of a variable is not Ok.
  • (C) Definition of a variable uses memory blocks.
  • (D) All of the above

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Q. Choose a correct statement.

  • (A) Register variables are usually fast retrieving variables.
  • (B) Static variables are usually maintain their values between function calls.
  • (C) Auto variables release their memory after the block or function where they are declared.
  • (D) All of the above

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Q. Choose a right statement.

  • (A) Variables of type auto are stored in Stack memory.
  • (B) Variable of type Static are stored in Segmented Memory.
  • (C) Variables of type register are stored in Micro Processor Memory.
  • (D) All of the above

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