Assessment Grade 10

Which number system is understood by computers?

• Octal
• Hexadecimal
• Binary
• Decimal

What is the denary value of 0110101?

• 32
• 45
• 59
• 53

What is the binary value of 105?

• 1011001
• 1101001
• 1001011
• 1110101

What is the 2s complement of 01101101?

• 11001101
• 01101100
• 10101101
• 10010011

What is the hexadecimal value of 01101101?

• 6F
• 6D
• 6C
• 6E

What is the 2s complement denary value for 110110?

• -10
• 3
• -6
• 12

What is the binary value for the hexadecimal AD?

• 11110000
• 11001101
• 10101010
• 10101101

Which color is shown by the following hexadecimal code #FF0000?

• Red

• Blue

• Green

• None

Which one of the following is not a use of hexadecimal?

• Error Messages

• Representing colors in web design
• Representing negative numbers
• MAC Address

What is the binary value for the hexadecimal FF?

• 11111111

• 10101010

• 11001100

• 10010011