Q35 — AWS SAA-C03 Ch.10

Question 35 of 100 | ← Chapter 10

Q635. A solutions architect is designing a disaster recovery (DR) strategy to provide Amazon EC2 capacity in a failover AWS Region. Business requirements state that the DR strategy must meet capacity in the failover Region.Which solution will meet these requirements?

Correct Answer: C. Purchase regional Reserved Instances in the failover Region

Explanation

To meet the business requirements of providing Amazon EC2 capacity in a failover AWS Region for a disaster recovery (DR) strategy, the most suitable solution would be:C. Purchase regional Reserved Instances in the failover Region. Reserved Instances (RIs) allow you to reserve capacity in advance for EC2 instances in a specific AWS Region. By purchasing regional Reserved Instances in the failover Region, you ensure that the capacity is available and reserved for your use in case of a disaster or failover event. Regional Reserved Instances provide flexibility and can be used across Availability Zones within the same Region. Options A and B are not the best choices for this scenario. A. Purchasing On-Demand Instances in the failover Region does not guarantee capacity in advance, and it may result in delays during a failover event if the required capacity is not available immediately. B. Purchasing an EC2 Savings Plan is a billing discount plan rather than a capacity reservation mechanism. While it can provide cost savings, it does not guarantee the availability of capacity during a failover.Option D is not the best choice either:D. Purchasing a Capacity Reservation allows you to reserve capacity within an Availability Zone, but it does not guarantee the availability of capacity across Availability Zones or the entire Region. It may not be sufficient if the failover event affects multiple Availability Zones within the failover Region.Therefore, option C is the most appropriate choice for meeting the capacity requirements in the failover Region.