Exam AWS Certified Cloud Practitioner topic 1 question 812 discussion

Exam question from Amazon's AWS Certified Cloud Practitioner

Question #: 812
Topic #: 1

[All AWS Certified Cloud Practitioner Questions]

A company has developed a distributed application that recovers gracefully from Interruptions. The application periodically processes large volumes of data by using multiple Amazon EC2 Instances. The application is sometimes idle for months.

Which EC2 instance purchasing option is MOST cost-effective for this use case?

A. Reserved Instances
B. Spot Instances
C. Dedicated Instances
D. On-Demand Instances

Show Suggested Answer

Suggested Answer: B 🗳️

by Guru4Cloud at April 24, 2023, 12:25 p.m.

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Pranava_GCP

1 year, 9 months ago

Selected Answer: B

B. Spot Instances "Amazon EC2 Spot Instances let you take advantage of unused EC2 capacity in the AWS cloud. Spot Instances are available at up to a 90% discount compared to On-Demand prices. You can use Spot Instances for various stateless, fault-tolerant, or flexible applications such as big data, containerized workloads, CI/CD, web servers, high-performance computing (HPC), and test & development workloads. Because Spot Instances are tightly integrated with AWS services such as Auto Scaling, EMR, ECS, CloudFormation, Data Pipeline and AWS Batch, you can choose how to launch and maintain your applications running on Spot Instances." https://aws.amazon.com/ec2/spot/

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beastdabest

1 year, 11 months ago

Selected Answer: B

B. Spot Instances

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grzeev

1 year, 11 months ago

Selected Answer: B

recovers gracefully from Interruptions

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Zonci

1 year, 11 months ago

Selected Answer: B

B. Spot Instances

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Madbo

2 years ago

B. Spot instances. Since the application is sometimes idle for months, spot instances are the most cost-effective option for this use case. Spot instances allow users to bid on unused EC2 capacity, and the price is determined by supply and demand. When demand for EC2 capacity increases, the spot instance price goes up, and when demand decreases, the spot instance price goes down. This makes spot instances ideal for workloads that are flexible and can be interrupted, such as batch processing jobs, data analysis, and testing environments. Since the application can recover gracefully from interruptions, spot instances are a cost-effective option that can save the company money when the instances are available.

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Odba19c2021

2 years, 1 month ago

Selected Answer: B

Spot Instances is the correct choice

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Guru4Cloud

2 years, 1 month ago

Selected Answer: B

For this use case, the most cost-effective EC2 instance purchasing option is Spot Instances. Spot Instances are spare EC2 instances that AWS offers at a discount of up to 90% compared to On-Demand pricing. Spot Instances are a good fit for this use case because the application is sometimes idle for months, and the company can afford to have the instances terminated with two minutes' notice. Spot Instances can be terminated at any time when the spot price exceeds the maximum price specified by the company. However, the company has developed a distributed application that recovers gracefully from interruptions, which means that it can handle the sudden termination of EC2 instances without any significant impact on its operations.

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