View All num of num See all Photos Amazon.com www.amazon.com Engaged Employer Overview Reviews Salaries Interviews Jobs Photos Benefits 4.5k Reviews 11k Salaries 5.9k Interviews 11k Jobs Follow Add Review or Salary Follow Add Review or Salary Interview Question Software Design Engineer Interview Seattle, WA Amazon.com Design counters system for online services. Tags: See more , See less 8 Answer Add Tags Answer Interview Answer 1 Answer ▲ 0 ▼ This is a pretty vague question but here goes. I would store the ip address, date, time and reference a foreign key of the product or service in a database table. Then some simple aggregate queries to pull the total. I would use the IP address to guarantee that the visits were unique. Jason on Dec 8, 2011 Interviews > Software Design Engineer > Amazon.com Add Answers or Comments To comment on this, Sign In or Sign Up.