Dynamic Scaling is an Auto Scaling feature that automatically adjusts the number of instances in an Auto Scaling group based on the real-time demand of your application. It works by monitoring the CloudWatch alarms associated with the specific metrics such as CPU utilization, network traffic, or re…Dynamic Scaling is an Auto Scaling feature that automatically adjusts the number of instances in an Auto Scaling group based on the real-time demand of your application. It works by monitoring the CloudWatch alarms associated with the specific metrics such as CPU utilization, network traffic, or request latency, and then adds or removes instances accordingly to maintain an optimal balance between the demand and available resources. This ensures that your application has sufficient resources to handle the current load, while minimizing the cost and optimizing resource utilization.
AWS Solution Architect: Dynamic Scaling Guide
What is Dynamic Scaling? Dynamic Scaling is a feature of AWS services, such as AWS Auto Scaling, that adjusts the capacity of your applications in response to workload changes. This ensures that your application can scale out to handle load spikes and scale in to reduce cost when demand decreases.
Why is it Important? Understanding Dynamic Scaling is crucial for an AWS Solution Architect as it helps to optimize resource usage, improve application performance, and manage costs effectively.
How does it work? Dynamic Scaling works on the principles of scaling policies which are rules that define when to scale out (add resources) or scale in (remove resources) based on metrics like CPU usage, request counts etc.
Exam Tips: Answering Questions on Dynamic Scaling When answering questions on Dynamic Scaling:
Highlight the importance of dynamic scaling in cost-management and resource optimization.
Explain how scaling policies and alarms trigger the scaling process.
Mention the metrics which can be monitored to initiate scaling processes.
Remember: While it's important to add resources to manage increased demand, proper configuration of scale-in policies is also critical to avoid excessive cost.
AWS Certified Solutions Architect - Dynamic Scaling Example Questions
Test your knowledge of Dynamic Scaling
Question 1
A gaming company wants to ensure its application can handle a sudden increase in users during a new game launch. How can they achieve this using Dynamic Scaling?
Question 2
A mobile application backend uses auto scaling to handle varying loads. It must handle occasional short periods of high load. Which EC2 Auto Scaling policy is best suited for this scenario?
Question 3
A company needs to control costs for its dynamic scale-out process in response to unexpected high traffic. What should they use to optimize the cost during dynamic scaling?
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