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Mastering Service Issues in Kubernetes: Interview Questions and Expert Answers
Kubernetes is the cornerstone of modern application deployments, and understanding service-related issues is crucial for DevOps engineers. In interviews, questions about Kubernetes services often assess a candidate’s practical troubleshooting skills and deep understanding of the system. This blog will break down four common Kubernetes service issues, the intent behind these interview questions, and structured answers to help you shine in interviews.
1. A service is not reachable from another namespace within the cluster. What could be causing this issue?
What is the interviewer looking for?
The interviewer wants to assess your understanding of Kubernetes networking, inter-namespace communication, and potential misconfigurations that could block connectivity. They’re also checking if you’re familiar with diagnosing common issues like DNS resolution, network policies, or service misconfigurations.
Answer:
- Check the Service Name and Namespace:
Services in Kubernetes are accessible by<service-name>.<namespace>.svc.cluster.local.
Ensure you’re using the correct service name and namespace in your application or while…
