SNS

Question 1

Which AWS service facilitates message delivery from publishers to subscribers, often referred to as producers and consumers?

Answer 1

Amazon Simple Notification Service (SNS)

Question 2

What is the maximum message size that SNS can handle?

Answer 2

256 KB

Question 2

What is the resiliency posture of the SNS service?

Answer 2

SNS is a region-resilient public AWS service

Question 3

Which service is commonly used across AWS for notifications?

Answer 3

Amazon Simple Notification Service (SNS)

Question 4

How can SNS be used in a cross-account environment?

Answer 4

By using a resource-based policy on the SNS topic

Question 5

What are the primary features of Amazon SNS?

Answer 5

• Delivery status logs (for HTTP, Lambda, SQS)
• Delivery retries
• Server-side encryption (SSE)

Question 6

What SNS component represents a logical access point and acts as a communication channel?

Answer 6

Topic, controls permissions and defines configurations

Question 7

Which SNS component is responsible for sending messages to topics?

Answer 7

Publisher

Question 8

What architecture involving AWS SNS and AWS SES is commonly referred to as a fanout?

Answer 8

A single SNS topic with multiple SQS queues as subscribers

Question 8

Which SNS component subscribes to a topic to receive messages sent by the publisher?

Answer 8

Subscriber

HTTP(S), Email (JSON), SQS, Mobile Push, SMS Message, Lambda

Question 9

What policy can be applied to an SNS subscriber to ensure they only receive relevant messages?

Answer 9

Filter policy