1Z0-1067-25 Question 55
Select 2You manage a multi-tier e-commerce application on Oracle Cloud Infrastructure (OCI) using a group of flexible compute instances behind a load balancer, connected to an Autonomous Transaction Processing (ATP) database. During high-traffic promotional events, response times spike and users experience delays. Which TWO actions can best help improve performance during peak loads?
- A
Implement an OCI instance pool with autoscaling for the compute tier to dynamically provision more compute capacity during peak loads.
- B
Enable auto scaling on your Autonomous Transaction Processing database so it can increase CPU capacity when thresholds are exceeded.
- C
Reduce block volume size to minimize storage overhead, thereby decreasing latency.
- D
Switch from flexible compute shapes to HPC shapes for guaranteed cost savings and maximum performance for general e-commerce workloads.
- E
Deploy an additional load balancer in another availability domain to distribute traffic more evenly across the region.
Show answer and explanation
Correct answers: A, B
Explanation
During peak workloads, performance optimization often involves ensuring sufficient compute resources and enabling the Autonomous Database to scale when demand increases. Oracle� best practices recommend using instance pools with autoscaling for seamless elasticity and enabling ATP auto scaling for database tier scalability. Refer to OCI documentation on 'Autoscaling for Compute Instances' and 'Autonomous Database Auto Scaling' for detailed guidance.
- A. Correct.
Option 1 is correct. Using an OCI instance pool with autoscaling lets you dynamically add more compute instances during heavy loads, helping you handle spikes in traffic. This ensures that you pay only for extra resources when needed and maintain optimal performance.
- B. Correct.
Option 2 is correct. Enabling auto scaling on ATP allows your database service to automatically add more CPU resources when utilization increases. This improves performance during peak workloads and is an officially supported best practice in OCI.
- C. Incorrect.
Option 3 is incorrect. Reducing block volume size may reduce costs but can actually reduce your available IOPS and throughput, leading to worse performance. In most cases, increasing block volume size or selecting a higher performance tier can improve I/O performance.
- D. Incorrect.
Option 4 is incorrect. HPC shapes are specialized for high-performance computing workloads, such as complex simulations or AI/ML tasks, and are not necessarily cost-effective or optimized for typical e-commerce applications. They do not guarantee cost savings across all scenarios.
- E. Incorrect.
Option 5 is incorrect. While adding an additional load balancer in another availability domain can improve high availability and help distribute traffic region-wide, it does not directly address the root causes of compute or database resource saturation. Autoscaling strategies at the compute and database layers are more effective for handling performance bottlenecks.