Vendor Crossover Illusion: The Real Price of Switching Certification Ecosystems
Switching from one vendor ecosystem to another — whether from AWS to Azure, Cisco to Juniper, or VMware to Nutanix — carries hidden costs that go far beyond purchasing a new set of study materials. Prior certifications create false confidence, conceptual baggage, and knowledge gaps that can be more dangerous than starting from zero. This guide examines what actually transfers between ecosystems and how to sequence multi-vendor credentials without paying for the same mistakes twice.