Ultimate access to all questions.
Upgrade Now 🚀
Sign in to unlock AI tutor
A consultant suggests replacing your current messaging system with Cloud Pub/Sub. However, you're worried about the differences in delivery guarantees between the two systems. What delivery semantics does Cloud Pub/Sub ensure?
A
Best effort but no guarantee
B
Deliver at least once
C
Deliver at most once
D
Deliver at most or deliver at least depending on configuration of the subscription