Sanitation wants residents’ phones to receive a push or SMS alert whenever a trash route changes for the week. Which AWS service is designed to publish notifications to many subscribers?
Select an answer to reveal the explanation.
Short Explanation
SNS is the town loudspeaker — one announcement, many listeners on phone, SMS, or email. SQS is a quiet inbox for workers to pull jobs one at a time, EBS is a hard drive for a server, and Snowball is a freight truck for bulk data, not weekly route pings.
Full Explanation
Amazon Simple Notification Service (SNS) is a pub/sub messaging service that fans out notifications to many subscribers across channels such as mobile push, SMS, and email. Route-change alerts are a natural SNS use. SQS queues work for competing consumers, EBS provides block storage for instances, and Snowball moves large datasets physically — none are the primary multi-subscriber alert bus.