1Z0-997-25 Question 49
Select 2Your organization plans to deploy a new e-commerce platform on Oracle Cloud Infrastructure (OCI). The platform must maintain near-zero RPO (Recovery Point Objective) and minimal RTO (Recovery Time Objective) for the database to ensure data availability, while also staying cost-effective. In addition, web traffic is expected to be highly variable, requiring automated scaling of application servers. Which two design decisions would best satisfy these requirements?
- A
Use Autonomous Database with cross-region Data Guard replication to achieve near-zero RPO and minimal RTO.
- B
Configure a single standalone Compute instance for the application layer, and scale by manually provisioning additional instances when traffic increases.
- C
Implement a dynamic instance pool of VM Standard shapes fronted by an OCI load balancer to handle variable traffic demands.
- D
Rely on daily manual backups to Object Storage for database high availability and minimal RPO.
Show answer and explanation
Correct answers: A, C
Explanation
To design an OCI solution that meets near-zero RPO and minimal RTO for the database, continuous replication (such as Data Guard) or Autonomous Data Guard-capable architectures are essential. Additionally, enabling an instance pool with an OCI load balancer supports automatic, cost-effective scaling for fluctuating web traffic. Refer to Oracle Cloud Infrastructure documentation on Disaster Recovery (using Data Guard) and Compute Autoscaling (using instance pools) for alignment with these best practices.
- A. Correct.
Option 1 is CORRECT. Using an Autonomous Database with cross-region Data Guard replication provides near-zero RPO and minimal RTO. Cross-region Data Guard means that failover can happen quickly if there is a regional outage, fulfilling strict business continuity requirements.
- B. Incorrect.
Option 2 is INCORRECT. A single standalone instance increases the risk of downtime and does not support quick automated scaling. Relying on manual provisioning for additional instances leads to potential delays in responding to traffic spikes.
- C. Correct.
Option 3 is CORRECT. An instance pool integrated with an OCI load balancer can automatically scale application servers in or out based on changing traffic demands, ensuring cost-effectiveness when the load is low and performance when the load is high.
- D. Incorrect.
Option 4 is INCORRECT. While daily backups to Object Storage are a good practice for data durability, they do not provide the near-zero RPO or minimal RTO required by the scenario. Restoring from backups is slower and risks data loss since the backup might not be current.