Amazon Web Services DVA-C02 Exam With Confidence Using Practice Dumps

CloudWatch for Log Analysis: CloudWatch is the best fit here because logs are already centralized. Here ' s the process:

Metric Filter: Create a metric filter on the CloudWatch Logs log group. Design a pattern to specifically identify application error messages.

Custom Metric: This filter generates a new custom CloudWatch metric (e.g., ApplicationErrors). This metric tracks the error count.

CloudWatch Alarm: Create an alarm on the ApplicationErrors metric. Configure the alarm with your desired threshold and a 5-minute evaluation period.

SNS Action: Set the alarm to trigger an SNS notification when it enters the alarm state.

To create a central logging solution for microservices, using Amazon CloudWatch Logs is a recommended and effective approach. Here ' s why:

Amazon CloudWatch Logs Streams allow you to centralize logs from different services, which is crucial as the number of microservices increases.

Each microservice can have its own dedicated log stream within Amazon CloudWatch Logs, providing clear segregation of logs while still allowing centralized management.

This setup enables developers to monitor, search, and analyze logs efficiently using tools like CloudWatch Insights.

Other options like CloudTrail (B) are designed for API activity monitoring, not application logs. VPC Flow Logs (C) focus on network traffic rather than application behavior. AWS Cloud Map (D) is for service discovery and routing, not logging.

Requirement Summary:

Multi-tier app on EC2 + Aurora PostgreSQL

Must comply with least privilege and security policies

Need to manage credentials and API keys securely

Must support key rotation on demand

Evaluate Options:

A. Secrets Manager + AWS managed KMS keys

Best practice for secure secret storage

Supports auto rotation

Uses AWS SDK to fetch at runtime (secure, avoids hardcoding)

AWS managed keys are rotated automatically and easier to manage

B. Secrets Manager + customer managed keys

Also valid, but adds complexity

Since the question asks for LEAST development effort, AWS-managed keys are preferred

C. Store secrets in code

Violates all security best practices

D. Use SSM Parameter Store + AWS managed keys

Possible, but Secrets Manager is preferred when rotation is needed

Parameter Store does not natively rotate secrets

Secrets Manager:

Automatic key rotation:

Best practices for secret management: