G9 L2 MINI

What is 1 + 1 in binary?

• 1

• 10 (correct)

• 11

• 2

What is the result of 1 + 1 + 1 in binary?

• 10

• 01

• 11 (correct)

• 111

What is the result of 00110100 + 00011100 in 8-bit binary?

• 00110010

• 01010000 (correct)

• 01110000

• 00111010

Why is a carry used during binary addition?

• To store an overflow

• To show division

• Because some bits add to more than 1 (correct)

• To reverse the binary order

What is the largest unsigned value that can be stored using 8 bits?

• 256

• 255 (correct)

• 128

• 11111111

What happens when you add two binary numbers and the result exceeds 8 bits?

• A new bit is added

• The system auto-expands

• An overflow occurs (correct)

• It subtracts instead

What is the 8-bit result of 11111111 + 00000001?

• 00000000 (correct)

• 100000000

• 00000001

• 11111111

Which term describes a result that is too large to store in the available number of bits?

• Underflow

• Overflow (correct)

• Truncation

• Wraparound

Which of these is a likely effect of an overflow error in a running program?

• Slower performance

• Incorrect output (correct)

• Text compression

• Better accuracy

What does a CPU use to detect when an overflow has occurred?

• Binary log

• Buffer

• Error flag (correct)

• RAM