Data Types In C

1. From below which Backslash character constant give meaning 'audible alert(bell)' ?

'\a'

'\b'

'\c'

'\ab'

The backslash character constant '\a' gives the meaning of an audible alert or bell. This character is used to produce a sound or alert in various programming languages and is commonly used in situations where an attention-grabbing signal is required, such as in error messages or notifications.

Explanation

The backslash character constant '\a' gives the meaning of an audible alert or bell. This character is used to produce a sound or alert in various programming languages and is commonly used in situations where an attention-grabbing signal is required, such as in error messages or notifications.

2. Choose exactly right range for float data type.

3.8e-38 to 3.8e+38

3.8e-34 to 3.8e+34

3.4e-38 to 3.4e+38

3.4e-34 to 3.4e+34

The correct answer is 3.4e-38 to 3.4e+38. This range represents the minimum and maximum values that can be stored in a float data type in most programming languages. The "e" notation represents scientific notation, where the number before "e" is multiplied by 10 raised to the power of the number after "e". In this case, the range starts at 3.4 multiplied by 10 raised to the power of -38, and ends at 3.4 multiplied by 10 raised to the power of +38. This range allows for a wide range of decimal values to be stored, but it is important to note that float data types have limited precision and may not be able to accurately represent very small or very large numbers.

Explanation

The correct answer is 3.4e-38 to 3.4e+38. This range represents the minimum and maximum values that can be stored in a float data type in most programming languages. The "e" notation represents scientific notation, where the number before "e" is multiplied by 10 raised to the power of the number after "e". In this case, the range starts at 3.4 multiplied by 10 raised to the power of -38, and ends at 3.4 multiplied by 10 raised to the power of +38. This range allows for a wide range of decimal values to be stored, but it is important to note that float data types have limited precision and may not be able to accurately represent very small or very large numbers.

3. We can create tilde sign with the use of which trigraph sequence?

??-

??/

??!

??>

The correct answer is ??-. The tilde sign can be created using the trigraph sequence ??-.

Explanation

The correct answer is ??-. The tilde sign can be created using the trigraph sequence ??-.

4. Choose exact size of 'signed long int' data type.

8

16

32

64

The correct answer is 32 because a signed long int data type typically occupies 32 bits of memory, allowing it to store integer values ranging from -2,147,483,648 to 2,147,483,647.

Explanation

The correct answer is 32 because a signed long int data type typically occupies 32 bits of memory, allowing it to store integer values ranging from -2,147,483,648 to 2,147,483,647.

5. Choose valid #define statement from below.

#define N 5,M 10

#define array 11

# define max 10

#define PRICE$ 100

The given #define statement "#define array 11" is a valid statement. It defines the identifier "array" to have the value 11. This means that whenever "array" is used in the code, it will be replaced with the value 11 during the preprocessing stage.

Explanation

The given #define statement "#define array 11" is a valid statement. It defines the identifier "array" to have the value 11. This means that whenever "array" is used in the code, it will be replaced with the value 11 during the preprocessing stage.

6. The characters in C are grouped into ____ categories.

1

2

3

4

The characters in C are grouped into four categories.

Explanation

The characters in C are grouped into four categories.