1Z0-997-25 Question 45
Select 2You are designing a critical e-commerce application on Oracle Cloud Infrastructure (OCI) that must handle thousands of transactions per hour. The business requires minimal downtime (RTO < 15 minutes) and minimal data loss (RPO < 5 minutes) in case of a regional outage. Additionally, the application experiences significant seasonal traffic spikes throughout the year. Which two approaches should you include in your architecture to meet these business and technical requirements?
- A
Deploy all compute instances in a single Availability Domain with local ephemeral storage, relying on Object Storage backups for recovery.
- B
Implement Oracle Data Guard to asynchronously replicate the primary database to a standby database in a second region.
- C
Configure Autoscaling on the application� compute instances to handle sudden increases in traffic load.
- D
Limit your deployment to a single region because cross-region replication is unnecessary given the existing RTO and RPO requirements.
Show answer and explanation
Correct answers: B, C
Explanation
By replicating your database across regions using Oracle Data Guard, you ensure near real-time data protection and minimize downtime. Coupled with Autoscaling for the application layer, you can handle rapid traffic fluctuations. Oracle� best practices encourage multi-AD or multi-region setups to avoid single-region risk, ensuring that stringent RTO/RPO requirements are met. Refer to Oracle� High Availability and Disaster Recovery documentation for further guidance.
- A. Incorrect.
Option 1: Incorrect. Using a single Availability Domain and local ephemeral storage introduces a significant single point of failure. Object Storage backups alone are insufficient for meeting tight RTO and RPO requirements, especially in a regional outage scenario.
- B. Correct.
Option 2: Correct. Oracle Data Guard with asynchronous replication is a recommended solution for near-zero data loss (low RPO) and quick failover (low RTO) in the event of a regional failure, fulfilling business continuity requirements.
- C. Correct.
Option 3: Correct. Autoscaling enables the application to handle seasonal or sudden spikes in load by dynamically adjusting the compute capacity. This ensures performance and availability during peak demand periods.
- D. Incorrect.
Option 4: Incorrect. Limiting the deployment to a single region fails to meet the stated requirement of regional disaster recovery. A cross-region design is necessary to achieve the required RTO and RPO in the event of a full regional outage.