Which solution will meet these requirements?
Create a log group in Amazon CloudWatch Logs. Configure VPC Flow Logs to send the log data to the log group. Use Amazon Kinesis Data Streams to stream the logs from the log group to OpenSearch Service.
Create a log group in Amazon CloudWatch Logs. Configure VPC Flow Logs to send the log data to the log group. Use Amazon Kinesis Data Firehose to stream the logs from the log group to OpenSearch Service.
Create a trail in AWS CloudTrail. Configure VPC Flow Logs to send the log data to the trail. Use Amazon Kinesis Data Streams to stream the logs from the trail to OpenSearch Service.
Create a trail in AWS CloudTrail. Configure VPC Flow Logs to send the log data to the trail. Use Amazon Kinesis Data Firehose to stream the logs from the trail to OpenSearch Service.
Explanations:
This option suggests using Amazon Kinesis Data Streams to stream logs from CloudWatch Logs to OpenSearch Service. While this method is valid, it does not leverage the built-in integration of Kinesis Data Firehose for direct streaming from CloudWatch Logs, making it less efficient for this scenario.
This option is the best solution as it configures VPC Flow Logs to send log data to a CloudWatch Logs group and then utilizes Amazon Kinesis Data Firehose to stream the logs directly to Amazon OpenSearch Service. This method allows for efficient and scalable log ingestion, meeting the real-time analysis requirement.
This option incorrectly suggests using AWS CloudTrail for capturing VPC Flow Logs. CloudTrail is designed for API call logging and does not log network traffic data. Therefore, it cannot be used to capture information about traffic to and from the network interfaces.
Similar to option C, this option also uses AWS CloudTrail, which is not appropriate for logging VPC Flow data. Although it mentions using Kinesis Data Firehose to stream logs to OpenSearch Service, the initial step of using CloudTrail for VPC Flow Logs is incorrect and invalidates the entire solution.
In my experience, the answer is:
Create a log group in Amazon CloudWatch Logs. Configure VPC Flow Logs to send the log data to the log group. Use Amazon Kinesis Data Firehose to stream the logs from the log group to OpenSearch Service.