Advanced
Web & Software Development
Q95 / 100
What is the difference between stateful and stateless microservices?
Correct! Well done.
Incorrect.
The correct answer is B) Stateless services store no session data locally (can be scaled/replaced freely); stateful services maintain state (harder to scale, require sticky sessions or distributed state management)
B
Correct Answer
Stateless services store no session data locally (can be scaled/replaced freely); stateful services maintain state (harder to scale, require sticky sessions or distributed state management)
Explanation
Stateless (ideal): any instance handles any request. Scale horizontally, restart freely. Stateful: session/cart data must go to the same instance or external state store (Redis). 12-factor mandates stateless processes.
Progress
95/100