SAP-C02 exam dumps: questions 301 to 400 of 677

Correct answer: B

• A. Incorrect.

  Increasing the instance sizes may temporarily resolve the issue but does not provide elasticity or cost optimization for fluctuating traffic. This is not the best solution as it does not scale dynamically with demand.

• B. Correct.

  Configuring an Auto Scaling group with scaling policies allows the backend EC2 instances to scale out during traffic spikes and scale in during low traffic, ensuring high availability and cost efficiency. This is the most appropriate solution.

• C. Incorrect.

  Enabling HTTP/2 support on the ALB improves performance by reducing latency between the client and the load balancer, but it does not address the issue of backend EC2 instances being overwhelmed.

• D. Incorrect.

  AWS Global Accelerator improves global performance by routing traffic to the nearest region, but it does not solve the problem of backend EC2 instances being overwhelmed in a single region.

Correct answers: A, B, C, E

• A. Correct.

  Enabling ALB access logs provides detailed information about incoming requests, including latency data, which can help identify patterns and potential performance bottlenecks.

• B. Correct.

  AWS X-Ray is a distributed tracing tool that helps analyze and debug the performance of applications, making it a suitable choice for identifying specific bottlenecks in the application flow.

• C. Correct.

  Amazon CloudWatch Synthetics simulates user interactions with the application, enabling proactive monitoring and the detection of latency or availability issues from an end-user perspective.

• D. Incorrect.

  While launching EC2 instances in multiple Availability Zones improves fault tolerance and scalability, it does not directly address the monitoring or diagnosis of performance issues.

• E. Correct.

  Enhanced Monitoring on EC2 instances provides detailed metrics such as disk I/O, network, and CPU utilization, which are useful for diagnosing instance-level performance issues.

Correct answers: A, B, C

• A. Correct.

  Enabling ALB access logs and analyzing them using Amazon Athena allows you to track request patterns, response times, and errors, helping you identify latency issues related to the load balancer.

• B. Correct.

  Amazon CloudWatch metrics provide visibility into resource utilization, such as CPU usage, which can indicate whether the EC2 instances are under-provisioned during peak traffic.

• C. Correct.

  AWS X-Ray enables you to trace requests through your distributed application, helping to pinpoint latency bottlenecks in specific components of your architecture.

• D. Incorrect.

  Amazon Inspector is used to assess security vulnerabilities, not for performance monitoring or diagnosing latency issues.

• E. Incorrect.

  Amazon CloudTrail is primarily used for logging API activity and user actions for security and compliance purposes, not for performance troubleshooting.

Correct answers: A, B, C

• A. Correct.

  Amazon CloudWatch metrics can help monitor resource utilization, request count, and latency for both the ALB and EC2 instances, making it a key tool for diagnosing performance issues.

• B. Correct.

  VPC Flow Logs provide network-level insights such as traffic patterns, dropped packets, and unexpected network behavior, which could be contributing to latency issues.

• C. Correct.

  AWS X-Ray allows you to trace requests as they flow through your application, helping you identify bottlenecks and performance issues in the code or architecture.

• D. Incorrect.

  AWS Trusted Advisor is focused on best practices across cost, performance, and security, but it does not provide real-time performance monitoring or diagnostics for application latency issues.

• E. Incorrect.

  Amazon CloudTrail logs focus on auditing API activity for AWS resources, which is useful for security and compliance but not for diagnosing performance issues.

Correct answers: A, B, E

• A. Correct.

  Amazon CloudWatch is essential for monitoring application metrics, logs, and alarms to identify performance trends and issues.

• B. Correct.

  AWS X-Ray helps trace requests through your application, allowing you to pinpoint latency issues and bottlenecks in the architecture.

• C. Incorrect.

  Amazon Macie is focused on data classification and monitoring access to sensitive data, which is not directly related to application performance monitoring.

• D. Incorrect.

  AWS CloudTrail is useful for tracking API activity and security-related events but does not provide insights into application performance or bottlenecks.

• E. Correct.

  Amazon RDS Performance Insights is designed to help analyze and improve database performance, making it a key tool for addressing performance issues in database-driven applications.