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Frontend Performance Quiz Practice
Active Recall Drill Session
← Exit Session
Question 1 of 1
medium
Frontend Performance
Demonstrated live in the parent-cascade demo, what is React's DEFAULT behavior when a component's state changes?
A
Only that specific component re-renders, never its children
B
The component AND its entire subtree re-render by default — nothing opts a child out automatically
C
Only components with changed props ever re-render, by default
D
React never re-renders anything without explicit instruction
Check Answer