CRC checking

Question

Let G(x) be the generator polynomial used for CRC checking. What is the condition that should be satisfied by G(x) to detect all isolated double errors?

• G(x) should have at least two terms.
• G(x) should have the factor x+1
• G(X) shouldn’t divide x^t+1 (for t less than frame length
• The coefficient of the term x⁰ should be 1.

Comments

Taken from forrozan 

Answer 1

ALL CONDITION SHOULD  REQUIRED A GOOD POLYNOMIAL NEEDS ALL THE FOLLOWING CHARACTERISTICS