How do you ensure data integrity across multiple systems and domains?
There are many influences that might impact data integrity, such as changes to data due to storage, an error in processing or retrieving, hardware failure, human error, or even hacking. The interviewers want to ensure that you are aware of the various factors that might impact data integrity as well as how thoroughly you attempt to address it.
"There are many factors that might impact data integrity, from something as simple as human error to something a bit more complex like hardware failure. To stay on top of it all, I maintain a few key touchpoints. I maintain a log of everyone that has access to the data including their titles and access levels. I run bi-weekly audits to verify the integrity of our most up-to-date data and help resolve any human error. I also follow the status sites of all relevant systems and domains to stay current on any potential outages or failures. I have found that this comprehensive approach resolves most errors and maintains data integrity."