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    • C++ Variables and Data Types

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    Question 1

    Which is a valid C++ data type?

    • A

      integer

    • B

      float

    • C

      number

    • D

      real

    Question 2

    What does the const keyword do?

    • A

      Allocates dynamic memory

    • B

      Makes a variable modifiable

    • C

      Defines a function

    • D

      Prevents variable modification

    Question 3

    What is the purpose of the auto keyword?

    • A

      Declares a constant

    • B

      Deduces variable type

    • C

      Allocates memory

    • D

      Defines a loop

    Question 4

    What is a constexpr used for?

    • A

      Runtime evaluation

    • B

      Compile-time evaluation

    • C

      Dynamic memory allocation

    • D

      Function definition

    Question 5

    What is the purpose of a variable in C++?

    • A

      To repeat a set of instructions multiple times

    • B

      To store data that can be used and modified during program execution

    • C

      Define functions

    • D

      To define reusable blocks of code

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