AWS CloudTrail: 10 Essential Interview Questions with Answers
I can provide you with a list of top 10 AWS CloudTrail interview questions and answers that a professional cloud developer might be asked during an interview:
- What is AWS CloudTrail and what are its key features?
AWS CloudTrail is a service that enables governance, compliance, operational auditing, and risk auditing of your AWS account. Key features include event history tracking, security analysis, resource tracking, and integration with other AWS services like Amazon S3, Amazon CloudWatch, and AWS Lambda.
- How does CloudTrail differ from Amazon CloudWatch?
While both services are used for monitoring AWS resources, CloudTrail focuses on recording API calls and resource changes, while CloudWatch focuses on monitoring performance metrics and setting alarms for specific thresholds.
- What are the main components of an AWS CloudTrail event?
A CloudTrail event consists of four main components: the event metadata, the AWS service, the event name, and the event source.
- Can you explain the difference between management events and data events in AWS CloudTrail?
Management events are related to control plane operations, such as creating or modifying AWS resources. Data events are related to data plane operations, such as object-level API activity on Amazon S3 or Lambda function execution.
- How can you secure AWS CloudTrail logs?
You can secure CloudTrail logs by enabling encryption using AWS Key Management Service (KMS) and storing logs in a private Amazon S3 bucket with access control policies, versioning, and lifecycle policies.
- What are the key considerations for monitoring multiple AWS accounts using CloudTrail?
You can use an organization trail to centrally monitor multiple AWS accounts. Ensure that the trail is applied to all accounts, and new accounts are automatically added. Store logs in a central S3 bucket with appropriate access control.
- How can you integrate AWS Lambda with CloudTrail?
You can use Amazon CloudWatch Events to trigger a Lambda function whenever a specific CloudTrail event occurs. This allows for real-time processing and analysis of the events.
- What is the default retention period for CloudTrail logs?
By default, CloudTrail logs are stored indefinitely in the designated S3 bucket. You can configure a lifecycle policy on the S3 bucket to automatically delete or transition logs to a different storage class after a specific period.
- How do you enable CloudTrail for all AWS regions?
To enable CloudTrail for all regions, create a new trail and select the “Apply trail to all regions” option. This ensures that any activity in any region is recorded in the trail.
- Can you explain how to filter CloudTrail events using Amazon Athena?
You can use Amazon Athena to query and filter CloudTrail logs stored in an S3 bucket. To do this, create a table schema in Athena that matches the CloudTrail log structure, and then run SQL queries to filter and analyze the events.
Keep in mind that these are just sample questions and answers that can be customized based on the specific job requirements and the interviewer’s preferences.