1Z0-1072-25 Question 37
Select 2You are running a mission-critical e-commerce application on Oracle Cloud Infrastructure (OCI) using Compute instances. OCI has notified you of a scheduled maintenance event affecting the physical hosts in your Availability Domain next week. Your application must remain highly available and tolerate zero or minimal downtime. Which TWO actions should you take to minimize potential service disruption?
- A
Configure a custom maintenance window and use notifications to plan for controlled failover or reboots if needed.
- B
Rely on live migration for any shape, as it is automatically enabled for all OCI Compute instances.
- C
Dismiss the maintenance notice because Oracle Cloud automatically ensures no outage will occur during maintenance windows.
- D
Provision backup instances in a different Availability Domain or region and attach them to your load balancer before the maintenance begins.
Show answer and explanation
Correct answers: A, D
Explanation
When OCI schedules maintenance, you should proactively plan for potential disruption, especially if your shapes do not support automatic live migration. Best practices include configuring a custom maintenance window, reviewing Oracle notifications, and maintaining redundancy across Availability Domains or regions. Refer to Oracle Cloud Infrastructure documentation on �Planned Maintenance� for detailed steps on scheduling, receiving notifications, and ensuring high availability.
- A. Correct.
Correct. Many OCI shapes allow you to schedule or customize maintenance operations, and receiving notifications gives you time to plan a failover or coordinated reboot. By proactively acknowledging and scheduling the maintenance, you can minimize unplanned downtime.
- B. Incorrect.
Incorrect. While Oracle Cloud supports live migration on certain shapes, it is not enabled across all instance types. Relying on it universally without confirming shape support could result in unplanned downtime. Always verify if your shape is eligible for live migration.
- C. Incorrect.
Incorrect. It is a common misconception that you can simply ignore scheduled maintenance. In reality, you must plan for the possibility of instance reboots or temporary unavailability. Oracle sends notifications specifically so that you can take precautions.
- D. Correct.
Correct. Launching additional instances in a different Availability Domain or region and adding them to your load balancer ensures redundancy. If one set of instances is impacted by the maintenance event, traffic can be routed to the unaffected domain or region.