cvv is not random its calculated.
each bin has thier own algo with a pair or triple keys value 16 bit typically well each pan (personal account number aka 15-16 card number) gets formulated with the cvk pair des/3des pin blockk or what have you with the experation date and service code if this was caulcuating the cvv in the dump which yes theres a cvv on the back of the card and there is a cvv in the actual tracks of the card which will be in discretionary data in the end . and NO theyre not the same either.