SNS Flashcards
1
Q
Which three out-of-the-box publish targets does SNS support?
A
- Lambdas
- SQS queues
- HTTP/S Endpoints
2
Q
Is message delivery guaranteed in SNS?
A
No - if there are no subscribers the message will eventually be lost
3
Q
What are the three phases of “retry” for an SNS topic?
A
- Immediate retry
- Pre-backoff
- Backoff
- Post-backoff
4
Q
What do the “minimum” and “maximum” delay values when setting up an SNS topic mean?
A
In the pre-backoff and backoff phase, the time between retries ramps up from the minimum to the maximum value, and then remains at the maximum value
5
Q
Can subscriptions to an SNS topic always override the topic’s own settings?
A
Only if “Override subscription policy” is not set on the SNS topic
