Question

Q 13 Which of the following statements regarding Cyclic Redundancy Check (CRC) is correct?
1. The sender performs a division operation on the bits sent and calculates the remainder
2. This technique involves binary division of the data bits being sent
3. Before sending the actual bits, the sender adds the remainder at the end of the actual bits
Choose the correct answer from the options given below.
Ops: A.
Only 1
B.
All 1, 2 and 3
С.
Only 1 and 2
D.
O Only 2 and 3
कर
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Answer 1

C.only 1 and 2 no a b o ....

Answer 2

The correct answer to this question is option B. All 1, 2 and 3.

Explanation:

• CRC is an approach to identify if the received frame holds valid data.  

• This method engages the binary division of the data bits that are being sent.

• The divisor is created using polynomials. The sender executes a division action on the bits being sent and determines the remainder.  

• Prior to sending the authentic bits, the sender includes the remainder at the end of the real bits. Actual data bits combined with the remainder is termed a codeword.  

• At the other end, the receiver executes division operation on codewords through the same CRC divisor.