Skip to content
Skills
Problems
Questions
Roles
Skills
Interview
Contest
Leaderboard
More
Problems
Questions
Roles
Skills
Interview
Contest
Leaderboard
More
Home
/
QA Engineer
/
Questions
/
System design
QA Engineer
System design questions
9 questions on System design for qa engineers, easiest first.
Medium
1
Stopping a lost update
medium
Hard
8
One coupon used twice
hard
One page, ten backend calls
hard
Testing with a payment gateway
hard
More users, less throughput
hard
Fast 202 responses, slow orders
hard
Scaling efficiency from 2 to 4 servers
hard
Testing a circuit breaker
hard
Two people book the last seat
hard
