This was the first round, and the interviewer asked questions based on the skills mentioned in my profile. Overall, it was a good experience.

Most questions were from Java and design patterns, with a few from Kubernetes.

1. Design a YouTube channel, including subscription, upload, and notification strategies.

2. Explain the Observer design pattern.

3. Find duplicates in a list using Java 8 (e.g., {1,2,3,4,4,5,1}) and execute test cases.

4. What needs to be considered when containerizing an application, especially a stateful application?

5. Explain the Factory design pattern.

6. Describe liveness and readiness probes in Kubernetes.

7. Discuss Kafka consumer groups, their benefits, partitions, offsets, and related concepts.

8. How do you deploy an application in Kubernetes?

9. Explain Ingress in Kubernetes.

10. How do you create authorization keys in Kubernetes and how do they work?

11. Provide an example of the Decorator design pattern in Java.

12. How do you scale a deployment in Kubernetes?