Question

If an existing customer number is taken from a former customer that no longer does business with the company and is assigned to a new customer, _______.

		A. this may cause problems with the underlying data analysis
		B. then no problems should occur and the testing should be straightforward
		C. this should not complicate or cause issues with the data analysis
		D. the auditors should generate a new customer number and assign it to the old customer

Answer 1

Answer is option A

A. this may cause problems with the underlying data analysis

Because,

It may not be related to older number but according to entity relations, old number is already used for one customer and it might be used in another analysis records which are already stored as an official records to various places. For example: some reports are forwarded to auditors, some to accountants or some to governmental reports. So, old number is already consumed for the data presentation and other entity relationships.

Because of these technical and analytical reasons, old numbers should not be used.