LinearLayout vs. RelativeLayout vs. FrameLayout

This tests your knowledge of fundamental Android View layouts, performance implications (nesting vs. flat hierarchies), and modern best practices. A strong answer defines LinearLayout for single-axis lists, RelativeLayout for complex relative positioning, and FrameLayout for stacking views. A major red flag is failing to mention that ConstraintLayout is now the preferred tool for complex UIs, as it creates flatter, more performant view hierarchies than nested alternatives.