Staff hear that serverless functions are often discussed near Platform as a Service and ask what PaaS means at a fundamentals level. Which definition is best?
Select an answer to reveal the explanation.
Short Explanation
PaaS in plain talk: a platform for your app so you are not raising the servers and OS underneath. Serverless often sits in that neighborhood of 'less server babysitting,' but the definition to memorize is the platform abstraction. Leave SDK deep-dives for other exams.
Full Explanation
At AZ-900 depth, Platform as a Service is a cloud service type that provides a platform for applications so customers avoid managing the underlying servers and OS for the app host. Serverless functions are often discussed near that managed-platform idea because they also reduce server babysitting, but the definition to retain is the platform abstraction itself rather than a coding lab. Staff hearing “serverless near PaaS” should still answer with the service-type definition. PaaS is not purchasing bare-metal servers with customer-owned hypervisors—that describes owning infrastructure, not consuming a platform service. PaaS is not exclusively Microsoft 365 mailboxes—that example is SaaS productivity, a different service type. PaaS does not require writing custom SDK bindings and Application Insights instrumentation as the fundamentals focus; those tasks belong to deeper developer exams. Exam caveat: serverless may be associated with PaaS-style management, yet the scored skill is still recognizing PaaS as the platform service type at describe depth. Operational check: when staff ask “is this PaaS?”, answer by whether they manage the app host OS and servers or only the application layer—and keep SDK deep-dives out of the AZ-900 briefing.