Explanation:Autoscaling is part of Amazon Cloudwatch and available at no additional charge. 8. Which of the following is a Web service that can publish messages from an application and deliver them to other applications or to subscribers ?
A. Amazon Elastic Compute Cloud
B. Amazon Simple Queue Service
C. Amazon Simple Notification Service
D. Amazon Simple Storage System
Answer:A
Explanation:Autoscaling is part of Amazon Cloudwatch and available at no additional charge. 8. Which of the following is a Web service that can publish messages from an application and deliver them to other applications or to subscribers ?
A. Amazon Elastic Compute Cloud B. Amazon Simple Queue Service C. Amazon Simple Notification Service D. Amazon Simple Storage System
Explanation:SNS provides a method for triggering actions, allowing clients or applications to subscribe to information (like RSS), or polling for new or changed information or perform updates. 9. Which of the following metrics are used to support Elastic Load Balancing ?