Computer Science Quiz

What is the maximum number of states that can be represented by a binary pattern of 4 bits?

• 8

• 16

• 32

• 64

How do computers represent and manipulate unsigned integers?

• Using binary

• Using hexadecimal

• Using decimal

• Using octal

What is the range of values that can be represented by an 8-bit binary number?

• 0 to 127

• 0 to 255

• -128 to +127

• -255 to +255

What happens when two positive binary patterns are added together?

• Logical shift

• Arithmetic shift

• Overflow

• Underflow

What is the concept of overflow in relation to the number of bits available to store a value?

• Exceeding the maximum value that can be represented

• Exceeding the minimum value that can be represented

• Exceeding the number of bits available

• Exceeding the number of bytes available

Why is hexadecimal notation used?

• To represent negative numbers

• To represent fractions

• To represent large binary numbers more concisely

• To represent decimal numbers

How are characters encoded using 7-bit ASCII?

• Using binary

• Using hexadecimal

• Using decimal

• Using octal

How are bitmap images represented in binary?

• Using pixels, resolution, and color depth

• Using amplitude, sample rate, and bit depth

• Using binary multiples

• Using lossless and lossy compression

How is analogue sound represented in binary?

• Using pixels, resolution, and color depth

• Using amplitude, sample rate, and bit depth

• Using binary multiples

• Using lossless and lossy compression

What are the limitations of binary representation of data when constrained by the number of available bits?

• Limited range of values that can be represented

• Limited precision in representing decimal numbers

• Limited storage capacity

• Limited color depth in images