Declaration and Initialization of Variables in C++

Which of the following are valid C++ data types?

• decimal, bool, char, text

• float, string, char, integer

• number, int, character, void

• d) int, double, bool, void

What is the correct syntax for declaring a variable named age of type int and initializing it to 25?

• age int = 25;

• var age = 25;

• a) int age = 25;

• int age : 25;

Which of the following data types is used to represent characters in C++?

• byte

• double

• boolean

• c) char

What is the size of an int data type in bytes ?

• • 1 byte

• • 2 bytes

• • 4 bytes

• • 8 bytes

What is the size of a char data type in bytes on most systems?

• 1 byte

• • 2 bytes

• • 4 bytes

• • 8 bytes

Which of the following data types has the smallest size in bytes?

• int

• • float

• • double

• • char

Which of the following data types has the largest size in bytes?

• • int

• • double

• • float

• char

What is the output of the following C++ code?

• • 1.6667

• • 1.67

• 1

• 2

What is the output of the following C++ code?

• • 15

• 5

• 0

• 105

What is the output of the following C++ code?

• c

• C

• A

• 65