Computer Science Fundamentals

What does the binary digit '1' represent?

• OFF

• ON

• ERROR

• NULL

What is the base value of the denary system?

• 16

• 8

• 2

• 10

How many bits are in a byte?

• 4

• 16

• 8

• 32

What is the binary equivalent of the denary number 24?

• 11000

• 11011

• 11001

• 11010

What is a nibble?

• 8 bits

• 1 bit

• 2 bits

• 4 bits

What happens when a CPU exceeds its word size?

• Data Loss

• Memory Leak

• Overflow Error

• Underflow Error

Which of the following is a hexadecimal number?

• 1010

• 1100

• 2A

• 1F

How is the hexadecimal number 7AF converted to denary?

• 7*10^2 + 10*10^1 + 15*10^0

• 7*2^2 + 10*2^1 + 15*2^0

• 7*8^2 + 10*8^1 + 15*8^0

• 7*16^2 + 10*16^1 + 15*16^0

What is the purpose of a MAC address?

• To store data

• To connect to Wi-Fi

• To identify a device on the Internet

• To encrypt information

What is the smallest unit of memory in a computer system?

• Byte

• Bit

• Nibble

• Word