Binary Numbers and Two's Complement Quiz

What is the smallest number that can be represented in binary using eight bits?

• 0

• 1

• 8

• 16

In two's complement method, what does the most significant bit (MSB) represent for negative numbers?

• Does not represent anything

• Negative value

• Zero

• Positive value

What is the binary representation of the positive number 117 using two's complement?

• 10010100

• 01110100

• 10010101

• 01110101

What is the binary representation of the negative number -117 using two's complement?

• 10001011

• 10001010

• 01110100

• 01110101

What is the neat trick to convert a two's complement number into its negative version?

• Add one to the number

• Swap every one for a zero and every zero for a one

• Multiply the number by -1

• Subtract one from the number

What is the binary representation of the positive number 12?

• 00001100

• 00011000

• 00110000

• 11000000

What is the binary representation of the negative number -12 using the neat trick?

• 00010011

• 11101100

• 11110011

• 00001100

What is the result of adding plus 12 to minus 12 in binary?

• 10000000

• 00000000

• 11111111

• 01111111

What does the number of zeros in the result of adding plus 12 to minus 12 indicate?

• Error in calculation

• Overflow

• Correct addition

• Underflow

What is the value of the left-most bit in the two's complement method for representing binary numbers?

• 128

• -128

• 64

• -64