Reducing Cloud Costs with Spot Instances for Your Cloud Infrastructure

Addressing Conditions for Running Applications on Spot Instances

Question

A cloud administrator suggested using spot instances to reduce cloud costs for part of a new cloud infrastructure.

Which of the following conditions must be addressed by the application that will run on these instances?

Answers

Explanations

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A. B. C. D.

C.

Spot instances are a type of compute resource that can be purchased from a cloud provider at a significantly lower cost than on-demand instances, but with the caveat that the instance may be terminated at any time if the spot price goes above the bid price of the instance. In this scenario, the cloud administrator has suggested using spot instances to reduce the costs of a new cloud infrastructure.

Given that spot instances can be terminated at any time, the application that will run on these instances must be designed to handle this situation. Specifically, it must be able to handle unpredictable instance termination. This means that the application must be able to save its state and data to a persistent storage location before the instance is terminated. If the application is unable to save its state and data, this could result in data loss or other serious problems.

Option A, which suggests that the application needs to store data in a database, is not directly related to the use of spot instances. It is possible to use a database to store data on spot instances, but this is not a specific requirement.

Option B, which suggests a restriction for distributed network communications, is not directly related to the use of spot instances either. However, it is worth noting that network communication can be affected by the use of spot instances, since instances can be terminated at any time and new instances may be started up in different locations.

Option D, which suggests that resource-intensive compute loads will be forbidden, is not accurate. Spot instances can be used for resource-intensive compute loads, but the application must be designed to handle the possibility of instance termination.

In conclusion, option C, which suggests that the application needs to handle unpredictable instance termination, is the correct answer.