Which of the following is true for the Datadog Lambda Extension?

The Datadog Lambda Extension is a mechanism for collecting comprehensive telemetry from AWS Lambda functions without adding performance overhead to the function's execution. It runs in the Lambda execution environment alongside the function code. The extension is responsible for gathering traces from instrumented functions, collecting and forwarding logs directly from the Lambda Logs API, and submitting custom metrics asynchronously. This allows for a complete observability solution for serverless applications, encompassing all three pillars of observability: logs, metrics, and traces.

A. This is incomplete. The extension supports more than just custom metrics; it also handles logs and traces.

B. This is incomplete. While it supports logs, it also supports traces and custom metrics, which are crucial for full observability.

C. This is incomplete. The extension's capabilities include collecting logs and custom metrics in addition to traces.

1. Datadog Documentation, "AWS Lambda for Serverless Monitoring". The overview section states, "The Datadog Lambda Extension... sends telemetry (metrics, traces, and logs) to Datadog asynchronously after the Lambda function has completed its execution."

2. Datadog Documentation, "Collect Telemetry for AWS Lambda functions". This page details the collection of traces, metrics, and logs, stating the extension "forwards logs, custom metrics, and traces from your Lambda functions to Datadog."