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Infrastructure as a Service (IaaS)

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Infrastructure as a Service (IaaS) is a cloud computing model that offers virtualized computing resources, such as virtual machines, storage, and networking, over the internet. Businesses can rent these resources on a pay-as-you-go basis, rather than investing in physical hardware. This model enabl…

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CompTIA A+ - Infrastructure as a Service (IaaS) Example Questions

Test your knowledge of Infrastructure as a Service (IaaS)

Question 1

A company uses an IaaS provider for data storage. The company has some confidential data that needs to be protected. What is the best method to ensure data security while using cloud storage?

Correct Answer: Encrypt data before uploading it to the cloud

Encrypting data before uploading it to the cloud ensures that the data is secured and protected from unauthorized access. Password protection alone is not enough, and trusting solely on the provider's security measures may not guarantee protection. Storing data on local servers and avoiding uploading to the cloud do not make use of IaaS.

Question 2

A company using IaaS encounters an issue with their website crashing during peak hours. What is the best solution to prevent this from happening?

Correct Answer: Enable auto-scaling of resources during peak hours

The best solution to prevent a company's website from crashing during peak hours when using IaaS is to enable auto-scaling of resources. Auto-scaling allows the infrastructure to automatically adjust the allocated resources based on demand. When the website experiences high traffic during peak hours, auto-scaling will provision additional resources to handle the increased load, preventing the website from crashing. This ensures optimal performance and availability of the website during busy periods. The other options, such as disabling the website, allocating fewer resources, or switching to maintenance mode, would not address the underlying issue of handling the increased traffic and would result in downtime or poor performance for users.

Question 3

A user is experiencing slow performance when accessing their company's web application hosted on an IaaS provider. What should the technician do first?

Correct Answer: Check the application's server resource usage

The first step when troubleshooting slow performance of a web application hosted on an IaaS provider should be to check the application server's resource usage. This will help identify if the server is running low on critical resources like CPU, memory, or disk I/O, which could be causing the performance issues. Increasing RAM, decreasing hard drive space, or adding another server should only be considered after determining the root cause of the performance problem through monitoring and analysis of the current server's resource utilization.

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