System Upgrades Migrations and Change Management Questions

This topic assesses the candidate's capability to plan and execute major infrastructure changes with minimal disruption. It includes inventory and impact analysis, compatibility and regression testing, database schema and data migration strategies, rollout strategies such as blue green and canary deployments, rollback and contingency planning, automation and runbook development, stakeholder coordination and communication, maintenance windows and scheduling, verification and validation after cutover, and post migration remediation and learning.