15 Lists & Touch questions from the React Native bank, written for Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd.
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A.the older wrapper that dims its child by reducing opacity while the finger is held down to signal a tap
B.the recommendation for long or unbounded data because only visible rows are mounted instead of every child at once
C.the list prop returning a unique, stable string id per row so the renderer can track, reorder, and recycle items correctly
D.the component for rendering grouped rows under headers, like a contacts directory split alphabetically
Answer + AI explanation with Pro
2. Which term means: "the recommendation for long or unbounded data because only visible rows are mounted instead of every child at once"?
Mid
A.FlatList over ScrollView
B.Pressable
C.TouchableOpacity
D.keyExtractor
Answer + AI explanation with Pro
3. Which statement is correct?
Mid
A.FlatList over ScrollView — the recommendation for long or unbounded data because only visible rows are mounted instead of every child at once
B.FlatList over ScrollView — the older wrapper that dims its child by reducing opacity while the finger is held down to signal a tap
C.FlatList over ScrollView — the component for rendering grouped rows under headers, like a contacts directory split alphabetically
D.FlatList over ScrollView — the list prop returning a unique, stable string id per row so the renderer can track, reorder, and recycle items correctly
Answer + AI explanation with Pro
4. What is keyExtractor?
Junior
A.the recommendation for long or unbounded data because only visible rows are mounted instead of every child at once
B.the modern, flexible wrapper that detects various press stages and exposes a pressed state for custom feedback styling
C.the older wrapper that dims its child by reducing opacity while the finger is held down to signal a tap
D.the list prop returning a unique, stable string id per row so the renderer can track, reorder, and recycle items correctly
Answer + AI explanation with Pro
5. Which term means: "the list prop returning a unique, stable string id per row so the renderer can track, reorder, and recycle items correctly"?
Junior
A.FlatList over ScrollView
B.keyExtractor
C.Pressable
D.SectionList
Answer + AI explanation with Pro
6. Which statement is correct?
Junior
A.keyExtractor — the recommendation for long or unbounded data because only visible rows are mounted instead of every child at once
B.keyExtractor — the list prop returning a unique, stable string id per row so the renderer can track, reorder, and recycle items correctly
C.keyExtractor — the older wrapper that dims its child by reducing opacity while the finger is held down to signal a tap
D.keyExtractor — the component for rendering grouped rows under headers, like a contacts directory split alphabetically
Answer + AI explanation with Pro
7. What is Pressable?
Junior
A.the modern, flexible wrapper that detects various press stages and exposes a pressed state for custom feedback styling
B.the older wrapper that dims its child by reducing opacity while the finger is held down to signal a tap
C.the recommendation for long or unbounded data because only visible rows are mounted instead of every child at once
D.the component for rendering grouped rows under headers, like a contacts directory split alphabetically
Answer + AI explanation with Pro
8. Which term means: "the modern, flexible wrapper that detects various press stages and exposes a pressed state for custom feedback styling"?
Junior
A.keyExtractor
B.Pressable
C.TouchableOpacity
D.FlatList over ScrollView
Answer + AI explanation with Pro
9. Which statement is correct?
Junior
A.Pressable — the recommendation for long or unbounded data because only visible rows are mounted instead of every child at once
B.Pressable — the component for rendering grouped rows under headers, like a contacts directory split alphabetically
C.Pressable — the modern, flexible wrapper that detects various press stages and exposes a pressed state for custom feedback styling
D.Pressable — the older wrapper that dims its child by reducing opacity while the finger is held down to signal a tap
Answer + AI explanation with Pro
10. What is SectionList?
Mid
A.the older wrapper that dims its child by reducing opacity while the finger is held down to signal a tap
B.the modern, flexible wrapper that detects various press stages and exposes a pressed state for custom feedback styling
C.the list prop returning a unique, stable string id per row so the renderer can track, reorder, and recycle items correctly
D.the component for rendering grouped rows under headers, like a contacts directory split alphabetically
Answer + AI explanation with Pro
11. Which term means: "the component for rendering grouped rows under headers, like a contacts directory split alphabetically"?
Mid
A.keyExtractor
B.SectionList
C.Pressable
D.TouchableOpacity
Answer + AI explanation with Pro
12. Which statement is correct?
Mid
A.SectionList — the list prop returning a unique, stable string id per row so the renderer can track, reorder, and recycle items correctly
B.SectionList — the modern, flexible wrapper that detects various press stages and exposes a pressed state for custom feedback styling
C.SectionList — the component for rendering grouped rows under headers, like a contacts directory split alphabetically
D.SectionList — the older wrapper that dims its child by reducing opacity while the finger is held down to signal a tap
Answer + AI explanation with Pro
13. What is TouchableOpacity?
Mid
A.the component for rendering grouped rows under headers, like a contacts directory split alphabetically
B.the older wrapper that dims its child by reducing opacity while the finger is held down to signal a tap
C.the list prop returning a unique, stable string id per row so the renderer can track, reorder, and recycle items correctly
D.the recommendation for long or unbounded data because only visible rows are mounted instead of every child at once
Answer + AI explanation with Pro
14. Which term means: "the older wrapper that dims its child by reducing opacity while the finger is held down to signal a tap"?
Mid
A.TouchableOpacity
B.keyExtractor
C.FlatList over ScrollView
D.Pressable
Answer + AI explanation with Pro
15. Which statement is correct?
Mid
A.TouchableOpacity — the list prop returning a unique, stable string id per row so the renderer can track, reorder, and recycle items correctly
B.TouchableOpacity — the older wrapper that dims its child by reducing opacity while the finger is held down to signal a tap
C.TouchableOpacity — the component for rendering grouped rows under headers, like a contacts directory split alphabetically
D.TouchableOpacity — the recommendation for long or unbounded data because only visible rows are mounted instead of every child at once
Answer + AI explanation with Pro
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