CompTIA Cloud+ (CV0-003) — Question 131

A company is currently running a website on site. However, because of a business requirement to reduce current RTO from 12 hours to one hour, and the RPO from one day to eight hours, the company is considering operating in a hybrid environment. The website uses mostly static files and a small relational database.
Which of the following should the cloud architect implement to achieve the objective at the LOWEST cost possible?

Answer options

• A. Implement a load-balanced environment in the cloud that is equivalent to the current on-premises setup and use DNS to shift the load from on premises to cloud.
• B. Implement backups to cloud storage and infrastructure as code to provision the environment automatically when the on-premises site is down. Restore the data from the backups.
• C. Implement a website replica in the cloud with auto-scaling using the smallest possible footprint. Use DNS to shift the load from on premises to the cloud.
• D. Implement a CDN that caches all requests with a higher TTL and deploy the IaaS instances manually in case of disaster. Upload the backup on demand to the cloud to restore on the new instances.

Correct answer: B

Explanation

Option B is the best choice as it allows for automated recovery using backups, which meets the RTO and RPO requirements effectively and at a low cost. Option A involves creating a load-balanced environment that might be more expensive and does not address the backup needs. Option C suggests a replica that may incur higher costs without guaranteeing the required recovery objectives. Option D relies on manual processes and does not efficiently meet the recovery time and point objectives.