1Z0-1067-25 Question 51
Single answerYour organization runs an HPC environment in Oracle Cloud Infrastructure (OCI) for a monthly simulation workload that peaks for only six hours. Currently, the HPC cluster is kept running 24/7, incurring significant costs during idle times. The finance team wants to reduce the monthly bill without compromising performance or availability for the monthly simulation. Which strategy best addresses this requirement?
- A
A. Permanently switch to smaller compute shapes and keep them running continuously throughout the month
- B
B. Use a capacity reservation for HPC shapes for the entire month to guarantee resources
- C
C. Schedule automatic stop and start of the HPC instances so that the cluster only runs during the monthly simulation window
- D
D. Migrate the workload to a single large bare metal instance and keep it powered on all month
Show answer and explanation
Correct answer: C
Explanation
The optimal cost optimization strategy is to run HPC compute resources only when they are actually needed. Leveraging OCI features such as instance stop/start scheduling allows you to pay primarily for storage during idle periods, drastically reducing monthly costs. According to Oracle Cloud documentation on cost management best practices, scheduling or automating resource lifecycles is an effective way to eliminate unnecessary running charges for HPC and similar workloads.
- A. Incorrect.
A. Incorrect. Smaller shapes running all day still incur costs around the clock. If peak performance is crucial for HPC workloads, this could degrade performance and still not solve idle-time costs.
- B. Incorrect.
B. Incorrect. Capacity reservations ensure resource availability but require paying for the reserved shape whether it's used or not, which doesn't reduce idle costs.
- C. Correct.
C. Correct. By stopping instances outside of the simulation window, you only pay for storage costs while the instances are stopped, significantly cutting down compute charges and keeping top performance for the HPC job when needed.
- D. Incorrect.
D. Incorrect. A single large instance running all month will continue to accumulate compute charges, defeating the goal of minimizing costs during idle periods.