Titan Tyres Co

Sir, For PYQ Sep/Dec 2015 Q3(b)(i)(ii)

(b)(i)Customer Database
1.Why the answer is more focus on the computer software system rather than the customer database?

(b)(ii)Contingent liabities

1.For 5th point,what mean of what portion of this time period the known claims relate to?
Is it mean that the contingent liabilities may be understated as the claims may not reflect the time period that the company use the faulty part?

Thank you.