Messaging and Integration Services Flashcards
1
Q
What are queues used for?
A
To implement loosely coupled systems
FIFO
2
Q
What is SQS
A
Simple Queue Service = a message queuing service
Messages processed asynchronously
supports loose coupling
3
Q
How could SQS be used?
A
Money transfer app
4
Q
What are the benefits of using a messaging queue?
A
Improves performance and scalability
5
Q
What is SNS?
A
Simple Notification Service = send emails and texts from apps
can publish to a topic
subscribers can receive messages
6
Q
Real world use case
A
Want to send an email when CPU utilization of an EC2 instance goes above 80%
SNS works with CloudWatch to monitor threshold
7
Q
What is SES?
A
Simple Email Service = send richly formatted HTML emails from your apps
Ideal for marketing
track open and click-through rates
8
Q
A
