Quiz on Data Operations

_______ is an arithmetic operation.

• The exclusive OR

• The unary NOT

• Subtraction

• The binary AND

_______ is a logical bit operator.

• The exclusive OR

• The unary NOT

• The binary AND

• Exclusive OR, unary NOT, or binary AND

The _______ method of integer representation is the most common method for storing integers in computer memory.

• Sign-and-magnitude

• One's complement

• Two's complement

• Unsigned integers

In two's complement addition, if there is a final carry after the left-most column addition, _______.

• Add it to the right-most column

• Add it to the left-most column

• Discard it

• Increase the bit length

For an 8-bit allocation, the smallest decimal number that can be represented in two's complement form is _______.

• −8

• −127

• −128

• −256

For an 8-bit allocation, the largest decimal number that can be represented in two's complement form is _______.

• 8

• 127

• 128

• 256

In two's complement representation with a 4-bit allocation, we get _______ when we add 1 to 7.

• 8

• 1

• −7

• −8

In two's complement representation with a 4-bit allocation, we get _______ when we add 5 to 5.

• −5

• −6

• −7

• 10

If the exponent in Excess‑127 is binary 10000101, the exponent in decimal is _______.

• 6

• 7

• 8

• 9

If we are adding two numbers, one of which has an exponent value of 7 and the other an exponent value of 9, we need to shift the decimal point of the smaller number _______.

• One place to the left

• One place to the right

• Two places to the left

• Two places to the right