Learn and Master C Programming - Bit-wise Left Shifting Operator (<

The video tutorial explains the concept of bit shifting, specifically left shifting, as a method of multiplying a number by two. It uses an example of shifting the number 4 left by two bits, demonstrating the process of inserting zeros and moving bits to the left. The tutorial also discusses the importance of bit size, using a 32-bit number to show how bits are shifted without falling off. The result of shifting 4 left by two bits is 16, equivalent to multiplying 4 by 2 twice.

What is the basic concept of bit shifting as introduced in the video?

• It is used to subtract numbers.

• It is similar to multiplying numbers by two.

• It is a way to add numbers.

• It is a method to divide numbers by two.

In the example provided, how many bits is the number 4 shifted to the left?

• One bit

• Two bits

• Three bits

• Four bits

What happens to the bits on the right when a number is shifted to the left?

• They are replaced with ones.

• They remain unchanged.

• They are replaced with zeros.

• They are doubled.

Why does the 'one' not fall off in the example when shifting the number 4?

• Because a 32-bit number is used.

• Because a 4-bit number is used.

• Because a 16-bit number is used.

• Because a 64-bit number is used.

What is the result of shifting the number 4 to the left by two bits?

• 20

• 16

• 12

• 8