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CV0-004 · Question #271

A cloud administrator is provisioning infrastructure to run an application with the following requirements: - Ten midsize instances need to run as a cluster most of the day. - Sixteen midsize…

The correct answer is C. Deploy reserved instances for normal operation and add pay-as-you-go instances during peak. This solution provides a cost-effective and highly available approach to meet the application’s Reserved instances are a good fit for the ten midsize instances that run most of the day, as they are typically offered at a discounted rate and are guaranteed. During peak hours…

Cloud architecture

Question

A cloud administrator is provisioning infrastructure to run an application with the following requirements:

  • Ten midsize instances need to run as a cluster most of the day.
  • Sixteen midsize instances are required during peak hours.
  • Costs must be kept low.
  • The instances must be deployed in an IaaS model.
  • The application has no tolerance for service disruptions.

Which of the following steps should the cloud architect take to host the application?

Options

  • AReserve 16 instances but turn off the unused instances outside of peak hours.
  • BUse ten pay-as-you-go instances and add six spot instances during peak hours.
  • CDeploy reserved instances for normal operation and add pay-as-you-go instances during peak
  • DConfigure the workload to use spot instances with scheduled scaling for normal operation,

How the community answered

(44 responses)
  • A
    5% (2)
  • B
    20% (9)
  • C
    61% (27)
  • D
    14% (6)

Explanation

This solution provides a cost-effective and highly available approach to meet the application’s Reserved instances are a good fit for the ten midsize instances that run most of the day, as they are typically offered at a discounted rate and are guaranteed. During peak hours, pay-as-you-go instances can be added to handle the additional six instances required. This ensures scalability without committing to additional reserved capacity for off-peak times, which helps in reducing costs.

Topics

#Cloud instance types#Cost optimization#Resource provisioning#Scalability

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