Oracle Cloud Infrastructure 2020 Architect Professional — Question 14

An online stock trading application is deployed to multiple Availability Domains in the us-phoenix-1 region. Considering the high volume of financial transactions that the trading application handles, the company has hired you to ensure that the data stored by the application is scalable, highly-available, and disaster resilient.
In the event of failure, the Recovery Time Objective (RTO) must be less than 2 hours to meet regulatory compliance requirements.
Which Disaster Recovery strategy should be used to achieve the RTO requirement in the event of system failure? (Choose the best answer.)

Answer options

• A. Configure your application to use synchronous master-slave data replication between Availability Domains.
• B. Configure hourly block volumes backups through the Storage Gateway service.
• C. Store hourly block volumes backup to NVME device under a compute instance and generate a custom image every 5 minutes.
• D. Configure hourly block volumes backups using the Oracle Cloud Infrastructure (OCI) Command Line Interface (CLI).

Correct answer: D

Explanation

Option D is correct because using the Oracle Cloud Infrastructure (OCI) CLI for hourly block volume backups ensures that data is consistently backed up and can be restored quickly, meeting the RTO requirement. Option A, while providing replication, may not guarantee the RTO. Option B does not offer the necessary speed for recovery, and Option C's complexity and reliance on custom images may hinder quick recovery times.