Understanding the Octal Number System

What is the base of the octal number system?

• 10

• 12

• 8

• 6

Which digits are used in the octal number system?

• 0, 1, 2, 3, 4, 5, 6, 7

• -1, 0, 1, 2, 3, 4, 5, 6

• 0, 1, 2, 3, 4, 5, 6, 7, 8

• 8, 9, 10, 11

What is the decimal equivalent of the octal number 57₈?

• 50

• 47

• 57

• 45

What is the octal equivalent of the decimal number 65?

• 66

• 64

• 70

• 101

Which of the following is NOT a valid octal number?

• 78

• 89

• 56

• 23

What is the binary equivalent of the octal number 23₈?

• 10011

• 10101

• 10010

• 11001

Which of the following decimal numbers is equivalent to the octal number 32₈?

• 24

• 30

• 26

• 28

What is the octal representation of the decimal number 10?

• 10

• 11

• 12

• 20

How do you convert the octal number 75₈ to decimal?

• 63

• 75

• 57

• 61

What is the octal equivalent of the decimal number 100?

• 144

• 150

• 200

• 110