Remedial Class Test 1 on DCF

Which of the following is a base-10 number system?

• Binary

• Octal

• Decimal

• Hexadecimal

What is the base of the binary number system?

• 2

• 8

• 10

• 16

In the hexadecimal system, what value does the letter 'A' represent?

• 10

• 11

• 12

• 15

Which of the following is not a positional number system?

• Binary

• Decimal

• Roman

• Hexadecimal

How many bits are there in a byte?

• 4

• 8

• 16

• 32

Which code is used to represent alphanumeric characters in computers?

• ASCII

• BCD

• EBCDIC

• Unicode

What is the main advantage of using hexadecimal numbers over binary numbers?

• Easier to understand

• More compact representation

• Compatibility with decimal numbers

• Less prone to errors

Which code is used for decimal digit representation in computers?

• BCD

• ASCII

• Unicode

• Gray code

Which number system uses the digits 0 and 1 exclusively?

• Decimal

• Octal

• Binary

• Hexadecimal

Which of the following is NOT a type of complement in number systems?

• 2’s complement

• 9’s complement

• 16’s complement

• 10’s complement