Binary and Number Systems Quiz

What is the basic building block in all computers?

• Octal number system

• Hexadecimal number system

• Decimal number system

• Binary number system

How many digits does the denary number system use?

• 16

• 10

• 8

• 2

What does a binary switch in the ON position represent?

• 3

• 2

• 1

• 0

Which of the following is a base 16 number system?

• Denary

• Binary

• Octal

• Hexadecimal

What is the equivalent denary number for the binary number 11101110?

• 240

• 238

• 250

• 255

In the binary number system, how many values can be represented?

• 10

• 16

• 1

• 2

What is the first step in converting a denary number to binary using successive division?

• Subtract the largest power of 2

• Divide by 2

• Add the remainders

• Count the digits

Which of the following represents the binary number 1001 in denary?

• 11

• 10

• 9

• 8

What is the hexadecimal equivalent of the binary number 1010?

• D

• A

• B

• C

How do you convert from binary to hexadecimal?

• Add binary digits

• Group binary digits in fours

• Group binary digits in pairs

• Subtract binary digits