Which Amazon Elastic Compute Cloud (Amazon EC2) Auto Scaling feature can help with fault tolerance?Question 24Answera.Replacing unhealthy Amazon EC2 instancesb.Having the right amount of computing capacityc.Distributing load to Amazon EC2 instancesd.Lower cost by adjusting the number of Amazon EC2 instances
Question
Which Amazon Elastic Compute Cloud (Amazon EC2) Auto Scaling feature can help with fault tolerance?Question 24Answera.Replacing unhealthy Amazon EC2 instancesb.Having the right amount of computing capacityc.Distributing load to Amazon EC2 instancesd.Lower cost by adjusting the number of Amazon EC2 instances
Solution
The Amazon Elastic Compute Cloud (Amazon EC2) Auto Scaling feature that can help with fault tolerance is "Replacing unhealthy Amazon EC2 instances".
Here's a step-by-step explanation:
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Amazon EC2 Auto Scaling monitors the health of the instances in your environment.
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If it detects an unhealthy instance, it terminates that instance. This is because an unhealthy instance may not be able to handle the application load or may not respond to the application health checks.
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After terminating the unhealthy instance, Amazon EC2 Auto Scaling launches a new instance to replace it.
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This ensures that your application is running on healthy instances, which improves the fault tolerance of your application.
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Therefore, by automatically replacing unhealthy instances, Amazon EC2 Auto Scaling helps to maintain the performance and availability of your application.
The other options mentioned - having the right amount of computing capacity, distributing load to Amazon EC2 instances, and lowering cost by adjusting the number of Amazon EC2 instances - are also features of Amazon EC2 Auto Scaling, but they are more related to scalability and cost optimization rather than fault tolerance.
Similar Questions
Which of the following is a way to use Amazon EC2 Auto Scaling groups to scale capacity in the AWS Cloud?a.Scale the size of EC2 instances up or down automatically, based on demand.b.Scale the number of EC2 instances in or out automatically, based on demand.c.Transfer unused CPU resources between EC2 instances.d.Use serverless EC2 instances.
Which of the following is an INCORRECT statement about Scaling, a design principle of Reliability pillar of the AWS Well-Architected Framework?Question 11Answera.A scale out operation implies you scale by adding more instances to your existing pool of resourcesb.A scale up operation implies you scale by adding more power (CPU, RAM) to your existing machine/nodec.Fault tolerance is achieved by a scale out operationd.Fault tolerance is achieved by a scale up operation
A solutions architect needs to maintain a fleet of Amazon EC2 instances so that any impaired instances are replaced with new ones. Which AWS service should the solutions architect use?a.AWS Auto Scalingb.Amazon GuardDutyc.AWS Shieldd.Amazon Elastic Container Service (Amazon ECS)
A company would like to optimize Amazon Elastic Compute Cloud (Amazon EC2) costs. Which of the following actions can help with this task? (Select TWO)Question 26AnswerA.Set up Auto Scaling groups to align the number of instances with the demandB.Vertically scale the EC2 instancesC.Build its own serversD.Opt for a higher AWS Support planE.Purchase Amazon EC2 Reserved instances (RIs)
Which of the following are benefits of Amazon EC2 Auto Scaling? (Choose two.)
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