Exam AWS Certified Cloud Practitioner CLF-C02 topic 1 question 429 discussion

Exam question from Amazon's AWS Certified Cloud Practitioner CLF-C02

Question #: 429
Topic #: 1

[All AWS Certified Cloud Practitioner CLF-C02 Questions]

A company is running a reporting web server application on Amazon EC2 instances. The application runs once every week and once again at the end of the month. The EC2 instances can be shut down when they are not in use.

What is the MOST cost-effective billing model for this use case?

A. Standard Reserved Instances
B. Convertible Reserved Instances
C. On-Demand Capacity Reservations
D. On-Demand Instances

Show Suggested Answer

Suggested Answer: D 🗳️

by d00b229 at Sept. 13, 2024, 8:52 p.m.

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Yak_Yeti

4 months, 1 week ago

Selected Answer: C

AWS On-Demand Capacity Reservations and On-Demand Instances serve different purposes: 1. On-Demand Capacity Reservations: -Purpose: Reserve compute capacity in a specific Availability Zone for any duration. -Flexibility: Can be created, modified, or canceled at any time. -Use Cases: Ideal for ensuring capacity for business-critical workloads, regulatory requirements, and disaster recovery. 2. On-Demand Instances: - Purpose: Provide compute capacity without any upfront commitment. - Flexibility: Pay for compute capacity by the hour or second, depending on the instance type. - Use Cases: Suitable for applications with unpredictable workloads or short-term requirements(1). (1) https://aws.amazon.com/compare/the-difference-between-on-demand-instances-and-reserved-instances/.

upvoted 1 times

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ShaiTay

5 months, 1 week ago

Selected Answer: D

D. On-Demand Instances

upvoted 2 times

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Yomijohnson

5 months, 2 weeks ago

In this scenario, the application only runs periodically—once every week and at the end of the month. Since the EC2 instances can be shut down when not in use, On-Demand Instances are the most cost-effective option. On-Demand Instances are ideal for intermittent workloads that do not require long-term or consistent usage commitments, allowing the company to pay only for the compute time they use.

upvoted 2 times

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d00b229

7 months, 1 week ago