COA test

What is the decimal equivalent of the binary number 1011?

• 11

• 12

• 10

• 9

In the hexadecimal number system, the letter 'A' represents the decimal value __________.

Is 1010101 in binary equal to 85 in decimal?

• Yes

• No

Which of the following is the correct octal representation of the decimal number 56?

• 67

• 72

• 75

• 70

Which of the following binary numbers is equal to the decimal number 14?

• 1011

• 1110

• 1111

• 1001

The octal number 365 is equal to the decimal number __________.

The hexadecimal number 2F3 is equal to the decimal number __________.

Which number system uses digits 0 to 9 and A to F?

What is the result when you subtract the binary number 1010 from 11010?

Convert the ASCII character 'a' to binary.

Hint a=97.