1Z0-1072-25 Question 168
Select 2You are managing a multi-subnet VCN environment in Oracle Cloud Infrastructure (OCI). One of your private compute instances cannot reach the Internet, and you suspect a routing issue. You decide to check the environment's topology using the Network Visualizer. Which two actions should you take in the Network Visualizer to confirm the connectivity path is configured correctly?
- A
Filter the diagram to the relevant VCN and subnets, then examine the displayed route table and gateway attachments.
- B
Select 'Analyze path' from the instance to the Internet Gateway, observing any blocked paths or missing route rules.
- C
Generate a system log summary of the instance's OS-level networking events from the Network Visualizer console.
- D
Use the Network Visualizer's auto-remediation feature to automatically correct route table errors in the associated subnet.
Show answer and explanation
Correct answers: A, B
Explanation
To diagnose network connectivity issues using the Network Visualizer, you typically filter the view to focus on specific VCNs or subnets and then use the Analyze Path feature to check for route or security rule obstacles. These steps align with Oracle best practices for troubleshooting VCN configurations. Refer to the official Oracle Cloud Infrastructure documentation for more guidance on using the Network Visualizer effectively.
- A. Correct.
Correct. By filtering to the appropriate VCN and subnets, you can see the visual layout of route tables and gateway connections. This helps identify potential misconfigurations or missing routes.
- B. Correct.
Correct. The Network Visualizer� 'Analyze path' feature lets you select a source and a destination (such as an Internet Gateway) to verify if traffic can flow properly and to detect any missing route or security configurations.
- C. Incorrect.
Incorrect. While the Network Visualizer shows network paths and configurations, it does not provide OS-level system logs or summaries. You would need to access the instance directly or use other OCI services (e.g., Logging) for that data.
- D. Incorrect.
Incorrect. The Network Visualizer does not automatically remediate or correct route table entries. It only provides visual representations and insights into network misconfigurations so you can make manual changes.