Discover which AWS service—Amazon EC2 Auto Scaling—can automatically adjust the number of EC2 instances to handle workload changes. Essential for passing the AWS Certified Cloud Practitioner CLF-C02 exam. When a company launches an application on AWS using Amazon EC2 and anticipates fluctuating workloads, it needs a service that can dynamically scale the number of EC2 instances to maintain performance and availability.
Question
A company is launching a new application on the AWS cloud. The application will run on an Amazon EC2 instance. More EC2 instances will be needed when the workload increases. Which AWS service or tool can the company use to launch the number of EC2 instances required to handle the workload?
A. Elastic Load Balancing
B. Amazon EC2 Auto Scaling
C. AWS App2Container (A2C)
D. AWS Systems Manager
Answer
B. Amazon EC2 Auto Scaling
Explanation
Amazon EC2 Auto Scaling is the AWS service or tool that can help the company launch the number of EC2 instances required to handle the workload. Amazon EC2 Auto Scaling automatically adjusts the capacity of EC2 instances based on demand and predefined scaling policies. Amazon EC2 Auto Scaling also helps improve availability and reduce costs by scaling in and out as needed.
Amazon EC2 Auto Scaling is specifically designed to manage the scaling of EC2 instances automatically. Here’s why it is the right choice for this scenario:
- Dynamic Scaling: Amazon EC2 Auto Scaling adjusts the number of EC2 instances in response to real-time demand patterns. It ensures that the application has sufficient capacity during peak usage and reduces unused instances during low demand, optimizing costs and performance.
- Fault Tolerance: It continuously monitors the health of instances and replaces unhealthy ones automatically, ensuring high availability for the application.
- Scalability: You can define scaling policies (dynamic or predictive) to handle workload spikes without manual intervention, making it ideal for applications with variable traffic patterns.
- Cost Optimization: By scaling down during periods of low demand, Amazon EC2 Auto Scaling helps reduce operational costs while maintaining application performance.
- Integration with Other AWS Services: It integrates seamlessly with Elastic Load Balancing (ELB) to distribute traffic across healthy instances and Amazon CloudWatch for monitoring performance metrics.
Why Not the Other Options?
A. Elastic Load Balancing (ELB): ELB distributes incoming traffic across multiple instances but does not scale the number of instances. It works in conjunction with Auto Scaling to balance traffic among healthy instances.
C. AWS App2Container (A2C): This service is used for containerizing existing applications, not for scaling EC2 instances based on workload changes.
D. AWS Systems Manager: AWS Systems Manager is a management tool for operational tasks like patching and configuration management but does not handle automatic scaling of resources.
Key Takeaways for CLF-C02 Exam
- Understand that Amazon EC2 Auto Scaling is the go-to service for managing dynamic workloads by automatically adding or removing EC2 instances.
- Recognize how it integrates with other services like ELB and CloudWatch to ensure high availability, fault tolerance, and cost efficiency.
- Focus on distinguishing between services like ELB (traffic distribution) and Auto Scaling (instance management), as this is a common area tested in the AWS Certified Cloud Practitioner exam.
By mastering these concepts, you’ll be well-prepared to answer similar questions on the CLF-C02 certification exam!
Amazon AWS Certified Cloud Practitioner CLF-C02 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Amazon AWS Certified Cloud Practitioner CLF-C02 exam and earn Amazon AWS Certified Cloud Practitioner CLF-C02 certification.