Q1. How does Kotlin handle null safety?
Kotlin's type system distinguishes nullable from non-nullable types. `String` cannot hold null; `String?` can. This moves null checks to compile time and largely eliminat...
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Q2. What are unknown, any and never?
- any disables type checking. It is contagious and should be avoided; use it only as an escape hatch. - unknown is the type-safe counterpart of any: you can assign anythi...
Q3. Why do dynamically constructed Tailwind class names fail to render?
Tailwind's JIT scans the files listed in content and generates only classes it finds as literal strings. Class names built dynamically are invisible to the scanner. ```js...
Q4. Explain Terraform lifecycle meta-arguments.
The lifecycle block controls how Terraform creates, updates, and destroys a resource. - create_before_destroy: create the replacement before destroying the old one, reduc...
Q5. How would you scale Scrum across multiple teams?
Scaling Scrum is a problem of coordination, not of adding more Scrum. The first question is whether scaling is needed, because more layers often slow delivery. I keep tea...