Binary Representation: A Comprehensive Guide for Year 11 Computing Students

Question 1

Which of the following data types is stored using 8 bits?

Accepted Answer

Character

Answer

Integer

Answer

Float

Answer

Double

Question 2

What is the fundamental unit of data in a computer system?

Accepted Answer

Bit

Answer

Byte

Answer

Word

Answer

Double Word

Question 3

Identify the hexadecimal number.

Accepted Answer

A2

Answer

1010

Answer

1111

Answer

0000

Question 4

What is the result of the binary subtraction operation 1101 - 1011?

Accepted Answer

0010

Answer

0100

Answer

1000

Answer

1100

Question 5

What is the primary purpose of using bitwise operators in binary representation?

Accepted Answer

To manipulate individual bits

Answer

To perform arithmetic operations

Answer

To compare binary numbers

Answer

To convert between binary and decimal

Question 6

How do the algorithms for performing basic mathematical operations (addition, subtraction, multiplication, and division) differ between binary and decimal arithmetic?

Accepted Answer

All basic mathematical operations (addition, subtraction, multiplication, and division) have different algorithms in binary arithmetic compared to decimal arithmetic.

Answer

Only addition and subtraction have different algorithms in binary arithmetic.

Answer

Only multiplication and division have different algorithms in binary arithmetic.

Question 7

Which logical gate implements the 'AND' operation, where the output is 1 only if both inputs are 1?

Accepted Answer

AND

Answer

OR

Answer

NOT

Answer

XOR

Question 8

What is the result of performing a NOT operation on the binary number 1101?

Accepted Answer

0010

Answer

1010

Answer

1100

Answer

1110

Question 9

What is the significance of the '0' bit in a binary representation?

Accepted Answer

It represents the absence of a value

Answer

It represents a positive value

Answer

It represents a negative value

Answer

It has no significance

Question 10

What is the primary purpose of a parity bit?

Accepted Answer

To detect errors during data transmission

Answer

To store additional data

Answer

To enhance processing speed

Answer

To represent negative numbers

Question 11

Which data type is suitable for storing the binary representation of an integer?

Accepted Answer

Integer

Answer

String

Answer

Boolean

Answer

Float

Question 12

In the context of binary subtraction, which operation is employed?

Accepted Answer

Borrowing

Answer

Inverting

Answer

Complementing

Answer

Shifting

Question 13

Which of the following binary numbers represents the decimal number 25?

Accepted Answer

11001

Answer

10101

Answer

11101

Answer

10011

Question 14

How many bits are required to represent a decimal number from 0 to 15?

Accepted Answer

4

Answer

3

Answer

6

Answer

5

Question 15

What is the binary representation of the decimal number 10?

Accepted Answer

1010

Answer

1001

Answer

1100

Answer

1000

Question 16

What is the binary equivalent of the decimal number 7?

Accepted Answer

111

Answer

1010

Answer

1100

Answer

1001

Question 17

In a computer, what is the smallest unit of data?

Accepted Answer

Bit

Answer

Nibble

Answer

Word

Answer

Byte

Question 18

Which of the following binary numbers represents the decimal number 20?

Accepted Answer

10100

Answer

11100

Answer

11000

Answer

10010

Question 19

What is the result of the binary addition: 101 + 110?

Accepted Answer

1011

Answer

1111

Answer

1101

Answer

1001

Question 20

How many bits are required to represent the decimal number 100 in binary?

Accepted Answer

7

Answer

8

Answer

5

Answer

6

Question 21

Which of the following statements is TRUE about the binary number system?

Accepted Answer

It uses only two digits, 0 and 1.

Answer

It has a larger base than the decimal system.

Answer

It is commonly used in everyday life.

Answer

It is based on powers of 10.

Question 22

Which of the following binary numbers is equivalent to the decimal number 5?

Accepted Answer

101

Answer

100

Answer

110

Answer

111

Question 23

What is the decimal equivalent of the binary number 1100?

Accepted Answer

12

Answer

14

Answer

16

Answer

10

Question 24

In binary representation, what is the value of the leftmost bit?

Accepted Answer

The most significant bit (MSB)

Answer

The sign bit

Answer

The least significant bit (LSB)

Answer

The middle bit

Question 25

What is the binary representation of the decimal number 25?

Accepted Answer

11001

Answer

10101

Answer

11101