Comp TIA Cloud + Certification Questions Part 2

An upgrade to a web application, which supports 400 users at four sites, is being tested. The application runs on four servers behind a load balancer. The following test plan is proposed:
● Have 50 users from site A connect to server 1
● Have 50 users from site B connect to server 2
● Have 50 users from site C connect to server 3
● Have 50 users from site D connect to server 4
Which of the following parameters is being properly tested by this plan?