Variables And Data Types In C Plus Plus - Practice Test

[#61] What is the result of the following expression in C++: 5 / 2?

(A) Compiler error

(B) 2.6

(C) 2.5

(D) 2

Correct Answer

(D) 2

[#62] Which operator is used to find the size of a data type in C++?

(A) size

(B) sizeofof

(C) sizeof

(D) lengthof

Correct Answer

(C) sizeof

[#63] What is the correct way to declare a constant in C++?

(A) final

(B) const

(C) #define

(D) None of the above

Correct Answer

(B) const

[#64] What happens when a null pointer is converted into bool?

(A) an error is flagged

(B) bool value evaluates to true

(C) bool value evaluates to false

(D) the statement is ignored

Correct Answer

(C) bool value evaluates to false

[#65] Pick the odd one out.

(A) array type

(B) character type

(C) boolean type

(D) integer type

(E) integer, character, boolean, floating

(F) enumeration, classes

(G) integer, enum, void

(H) arrays, pointer, classes

Correct Answer

(A) array type
(G) integer, enum, void

Variables And Data Types In C Plus Plus - Study Mode

[#61] What is the result of the following expression in C++: 5 / 2?

Correct Answer

[#62] Which operator is used to find the size of a data type in C++?

Correct Answer

[#63] What is the correct way to declare a constant in C++?

Correct Answer

[#64] What happens when a null pointer is converted into bool?

Correct Answer

[#65] Pick the odd one out.

Correct Answer