AWS App Integration Services

Question 1

What is Amazon SNS?

Answer 1

Simple Notification Service
A managed pub/sub messaging service
Allows you to send emails and texts and push notifications from apps
Organized by topics
If you aren’t subscribed, you won’t get the message - it’s not saved

Question 2

What is Amazon SQS?

Answer 2

Simple queue service
A managed message queue service
Allows you to build loosely coupled systems
Messages are stored for 14 days or until you get them
Like a mailbox
Can prevent data loss, if a server goes down, the messages stay in the queue and can get processed when it comes back up

Question 3

What is AWS Step Functions?

Answer 3

Serverless workflow management service
Supports serverless architecture
Charged per state transition (for each step)
Defined by Amazon States Language
There is a flow diagram

Question 4

What is SES?

Answer 4

Simple Email Service
Send richly formatted HTML emails from your apps

Question 5

What types of queues are supported by SQS?

Answer 5

Standard queue - no guarantee of order
FIFO - guaranteed to process messages in order

Question 6

What services can Step Functions integrate with?

Answer 6

Compute
Database
Messaging
Data processing
Machine Learning