Round 1 : HLD

• Exp:11-12 years Role: backend-EM Infra/Core team member: Q: Design a scalable and fault-tolerant distributed system where any node could be required to upgrade. System would have multiple clusters with multiple nodes and at any time if any node needs to be upgraded/ requires modification. Availability should not be impacted. Cross questions: Achieve on Availability and how will you handle it internally without impacting user experience of the service. N nodes are present support two nodes is upgrading how will you decide on which node will serve the request.
• Behavioral questions/ experience discussion 1. What have you worked on 2. Expert areas 3. Experience on distributed systems.