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Question 112 - Professional Cloud DevOps Engineer discussion

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You are configuring connectivity across Google Kubernetes Engine (GKE) clusters in different VPCs You notice that the nodes in Cluster A are unable to access the nodes in Cluster B You suspect that the workload access issue is due to the network configuration You need to troubleshoot the issue but do not have execute access to workloads and nodes You want to identify the layer at which the network connectivity is broken What should you do?

A.
Install a toolbox container on the node in Cluster A Confirm that the routes to Cluster B are configured appropriately
Answers
A.
Install a toolbox container on the node in Cluster A Confirm that the routes to Cluster B are configured appropriately
B.
Use Network Connectivity Center to perform a Connectivity Test from Cluster A to Cluster
Answers
B.
Use Network Connectivity Center to perform a Connectivity Test from Cluster A to Cluster
C.
Use a debug container to run the traceroute command from Cluster A to Cluster B and from Cluster B to Cluster A Identify the common failure point
Answers
C.
Use a debug container to run the traceroute command from Cluster A to Cluster B and from Cluster B to Cluster A Identify the common failure point
D.
Enable VPC Flow Logs in both VPCs and monitor packet drops
Answers
D.
Enable VPC Flow Logs in both VPCs and monitor packet drops
Suggested answer: B

Explanation:

The best option for troubleshooting the issue without having execute access to workloads and nodes is to use Network Connectivity Center to perform a Connectivity Test from Cluster A to Cluster B. Network Connectivity Center is a service that allows you to create, manage, and monitor network connectivity across Google Cloud, hybrid, and multi-cloud environments. You can use Network Connectivity Center to perform a Connectivity Test, which is a feature that allows you to test the reachability and latency between two endpoints, such as GKE clusters, VM instances, or IP addresses. By using Network Connectivity Center to perform a Connectivity Test from Cluster A to Cluster B, you can identify the layer at which the network connectivity is broken, such as the firewall, routing, or load balancing.

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asked 18/09/2024
Rickey Dickens
38 questions
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