What is one feature of Amazon CloudWatch?

Amazon CloudWatch is a powerful monitoring and observability service provided by AWS that enables users to monitor their cloud resources and applications in real-time. One of its primary features is the ability to collect and track metrics, log files, and set alarms to notify users about system performance and operational health.

The real-time monitoring capability allows users to gain insights into their cloud infrastructure and applications, helping them to ensure optimal performance and quickly respond to issues as they arise. This is crucial for maintaining application availability and performance, as it enables proactive management of resources and alerts for operational problems.

In contrast, the other options refer to various functionalities that do not pertain to CloudWatch. Data archiving involves storing data for long-term retention, which is a feature supported by services like Amazon S3, but not by CloudWatch. Transcoding media files is related to processing media formats and would be managed by AWS Elemental MediaConvert or similar services. A content delivery network, such as Amazon CloudFront, is designed to deliver content with low latency and high transfer speeds, rather than monitoring and observability functions that define CloudWatch.