A code should be selected such that it should(a) Not have catastrophic error propagation(b) Have minimum free distance(c) All of the mentioned(d) None of the mentionedThe question was posed to me in an online quiz.My enquiry is from Properties of Convolution Codes and Reed-Solomon Codes topic in portion Channel Coding of Digital Communications

A code should be selected such that it should(a) Not have catastrophic

1.	A code should be selected such that it should(a) Not have catastrophic error propagation(b) Have minimum free distance(c) All of the mentioned(d) None of the mentionedThe question was posed to me in an online quiz.My enquiry is from Properties of Convolution Codes and Reed-Solomon Codes topic in portion Channel Coding of Digital Communications
Answer» Correct choice is (a) Not have catastrophic ERROR PROPAGATION The explanation: Generally code’s are selected BASED on the free distance property. The CRITERIA for selecting code is that it should not have catastrophic error propagation and it should have maximum free distance.

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