Message Delivery Status

5 minutes 5 Questions

Message Delivery Status is a feature that allows you to monitor and troubleshoot delivery issues. This can be useful to verify the delivery of messages to specific endpoints and to help diagnose issues related to message deliveries. With this feature enabled, SNS will write logs to Amazon CloudWatch Logs to provide detailed information about the success or failure of a message delivery attempt. You can set up CloudWatch metrics and alarms to monitor the status of your message deliveries and receive notifications if there are any delivery failures or performance issues.

AWS SNS: Message Delivery Status Guide

What is Message Delivery Status?
Message Delivery Status is a feature of AWS Simple Notification Service (SNS) that gives you the power to track the delivery status of both SMS and PUSH notification messages.

Why is it important?
Knowing the delivery status of your messages is critical to understanding if your messages are reaching their intended recipients. If they are not, you can use this data to troubleshoot and rectify any issues, which is key to maintaining a reliable communication system.

How it works?
When a message is sent via AWS SNS, a delivery status will be generated which tracks whether the message was successfully delivered, or if it failed, the reason for failure. This status will be stored in CloudWatch Logs, and available for future reference and troubleshooting purposes.

Exam Tips: Answering Questions on Message Delivery Status
Suggestions for exam success include understanding the main concepts around AWS SNS, its applications and particularly the Message Delivery Status. Study how the delivery status system works, including where the data is stored (CloudWatch Logs) and how it could be used for troubleshooting. Practice problem scenarios where message delivery problems need to be addressed using the AWS SNS service.

Good luck and happy studying!

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Question 1

A solution architect needs to monitor the delivery status of messages from an SNS Topic to SQS subscribers. What should be done to monitor the message delivery status?

Enable X-Ray tracing Create an Amazon CloudTrail trail Monitor the SNS topic with Amazon GuardDuty Enable CloudWatch Metrics for SNS

Correct Answer: Enable CloudWatch Metrics for SNS

CloudWatch Metrics for SNS can be used to monitor the delivery status of messages sent to subscribers. Other options either don't provide the required data or introduce unnecessary complications.

Question 2

A company is using Amazon SNS to send notifications of messages in the system. A message delivery status of '500 Internal Server Error' is being received. What should be done to fix the issue?

Create a new SNS topic Check internet connection Change the message format Retry sending the message later after checking the endpoint

Correct Answer: Retry sending the message later after checking the endpoint

A 500 Internal Server Error indicates an issue with the endpoint, not with SNS or the message itself. There is no need to change the topic, region, or message format. The best solution in this case is to retry sending the message after verifying the health of the endpoint.

Question 3

An application is sending messages to an SQS queue, but some messages are being marked as 'Message too large'. What should be done to handle this issue?

Configure Amazon S3 to store large message payloads Increase the SQS message size limit Send messages individually Use Amazon SNS instead

Correct Answer: Configure Amazon S3 to store large message payloads

The SQS message size limit cannot be increased. Storing message payloads on Amazon S3 avoids this limitation, as only metadata is sent in the SQS message while the payload is stored in S3. Other options either don't solve the problem or introduce unrelated changes.

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