1. Data in React flows one way (parent → child).

✔️ True
❌ False

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2. Why is one-way data flow important?

✔️ It ensures data flows from top to bottom in the component hierarchy.
❌ Bottom to top

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3. State data can be mutated by the component itself.

✔️ True
❌ False

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4. What is prop drilling?

✔️ Passing data parent → child → grandchild → deeper levels
❌ Passing child → parent → grandparent

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5. Stateless components don’t have their own state.

✔️ True
❌ False

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6. Correct statement about props:

✔️ Props are immutable — children must not change them.
❌ Props are mutable

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7. Is this React code valid (handler passed correctly)?

✔️ Yes
❌ No

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8. Is this code valid (inline arrow function)?

✔️ Yes
❌ No

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9. Select the correct statement about useState:

✔️ It lets you hook into React state and lifecycle features.
❌ Not part of React
❌ Must name updater counterFunction
❌ Should never be called at top level

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10. Context API allows you to…

✔️ Avoid passing state through multiple component levels (avoid prop drilling).
❌ Avoid return statement
❌ Avoid modular components

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📘 Summary Table

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