ISRO2015-52

Question

In CRC if the data unit is $100111001$ and the divisor is $1011$ then what is dividend at the receiver?

• A. $100111001101$
• B. $100111001011$
• C. $100111001$
• D. $100111001110$

Answer 1

Given $CRC$ of the data unit is $100111001$ and divisor is $1011$.

So dividend at the receiver=100111001011

Option B is correct.

Comments

How did you subtracted 1011 from 1001 a ?  1011>1001... and what happened with the carry?

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Operation is xor not subtraction.