1Z0-1072-25 Question 134
Single answerYou have deployed a high-traffic web application behind an Oracle Cloud Infrastructure (OCI) public Load Balancer. During peak traffic, some users report intermittent connection timeouts even though the backend servers show no sign of overload. Logs indicate the Load Balancer is occasionally dropping connections. Which action should you take first to address this issue?
- A
Switch to a private Load Balancer for increased scalability.
- B
Increase the Load Balancer shape to a higher bandwidth setting.
- C
Use path-based routing to distribute requests more effectively.
- D
Configure advanced SSL termination for improved connection handling.
Show answer and explanation
Correct answer: B
Explanation
When an OCI Load Balancer faces intermittent connection drops during peak usage, one common cause is ephemeral port exhaustion. The Load Balancer� ability to handle concurrent connections (and by extension, ephemeral port usage) is coupled with its chosen shape. By selecting a larger shape (for example, moving from 100 Mbps to 400 Mbps), you increase the concurrent connection capacity. Refer to the official OCI documentation on Load Balancer shapes to understand concurrency limits and ephemeral port allocations (https://docs.oracle.com/en-us/iaas/Content/Balance/Concepts/balanceoverview.htm).
- A. Incorrect.
Option 1: Switching to a private Load Balancer does not inherently increase the number of available ephemeral ports or overall capacity. Private Load Balancers are typically used when you only need to serve requests within your VCN without exposing services directly to the public Internet, so this does not resolve the intermittent drops.
- B. Correct.
Option 2: Increasing the Load Balancer shape provides a larger pool of ephemeral ports and higher concurrency limits, which helps handle peak traffic without dropping connections. This is the preferred action when you suspect port exhaustion or concurrency limitations are causing intermittent timeouts.
- C. Incorrect.
Option 3: Path-based routing ensures that specific URL paths route to different backend sets but it does not directly address connection timeouts due to potential ephemeral port exhaustion. While path-based routing might optimize your application� flow, it won�t fix issues when the Load Balancer is running out of ports during traffic spikes.
- D. Incorrect.
Option 4: Configuring advanced SSL termination can optimize certain SSL processes on the Load Balancer side, but it does not solve the root cause of dropped connections if ephemeral port limits are reached. SSL termination is more about how traffic is decrypted or re-encrypted, not about increasing concurrency limits.