15 New Architecture 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 rewritten rendering system that builds a concurrent shadow tree in C++ and commits it synchronously, replacing the old UI manager
B.the cross-platform C++ flexbox layout engine that computes positions and sizes from style rules for the native renderer
C.the open-source JavaScript engine optimized for mobile that precompiles to bytecode, cutting startup time and memory use
D.the compatibility shim that lets old-architecture libraries keep working while the app runs on the modern renderer and module system
Answer + AI explanation with Pro
2. Which term means: "the rewritten rendering system that builds a concurrent shadow tree in C++ and commits it synchronously, replacing the old UI manager"?
Senior
A.Yoga
B.Fabric
C.Hermes engine
D.interop layer
Answer + AI explanation with Pro
3. Which statement is correct?
Senior
A.Fabric — the cross-platform C++ flexbox layout engine that computes positions and sizes from style rules for the native renderer
B.Fabric — the rewritten rendering system that builds a concurrent shadow tree in C++ and commits it synchronously, replacing the old UI manager
C.Fabric — the open-source JavaScript engine optimized for mobile that precompiles to bytecode, cutting startup time and memory use
D.Fabric — the fully modernized runtime that removes the legacy message queue entirely so all communication goes through the C++ interface
Answer + AI explanation with Pro
4. What is Hermes engine?
Mid
A.the rewritten rendering system that builds a concurrent shadow tree in C++ and commits it synchronously, replacing the old UI manager
B.the cross-platform C++ flexbox layout engine that computes positions and sizes from style rules for the native renderer
C.the fully modernized runtime that removes the legacy message queue entirely so all communication goes through the C++ interface
D.the open-source JavaScript engine optimized for mobile that precompiles to bytecode, cutting startup time and memory use
Answer + AI explanation with Pro
5. Which term means: "the open-source JavaScript engine optimized for mobile that precompiles to bytecode, cutting startup time and memory use"?
Mid
A.Hermes engine
B.Yoga
C.interop layer
D.Fabric
Answer + AI explanation with Pro
6. Which statement is correct?
Mid
A.Hermes engine — the rewritten rendering system that builds a concurrent shadow tree in C++ and commits it synchronously, replacing the old UI manager
B.Hermes engine — the compatibility shim that lets old-architecture libraries keep working while the app runs on the modern renderer and module system
C.Hermes engine — the cross-platform C++ flexbox layout engine that computes positions and sizes from style rules for the native renderer
D.Hermes engine — the open-source JavaScript engine optimized for mobile that precompiles to bytecode, cutting startup time and memory use
Answer + AI explanation with Pro
7. What is Yoga?
Senior
A.the compatibility shim that lets old-architecture libraries keep working while the app runs on the modern renderer and module system
B.the open-source JavaScript engine optimized for mobile that precompiles to bytecode, cutting startup time and memory use
C.the cross-platform C++ flexbox layout engine that computes positions and sizes from style rules for the native renderer
D.the fully modernized runtime that removes the legacy message queue entirely so all communication goes through the C++ interface
Answer + AI explanation with Pro
8. Which term means: "the cross-platform C++ flexbox layout engine that computes positions and sizes from style rules for the native renderer"?
Senior
A.Yoga
B.Hermes engine
C.bridgeless mode
D.Fabric
Answer + AI explanation with Pro
9. Which statement is correct?
Senior
A.Yoga — the open-source JavaScript engine optimized for mobile that precompiles to bytecode, cutting startup time and memory use
B.Yoga — the cross-platform C++ flexbox layout engine that computes positions and sizes from style rules for the native renderer
C.Yoga — the fully modernized runtime that removes the legacy message queue entirely so all communication goes through the C++ interface
D.Yoga — the compatibility shim that lets old-architecture libraries keep working while the app runs on the modern renderer and module system
Answer + AI explanation with Pro
10. What is interop layer?
Senior
A.the fully modernized runtime that removes the legacy message queue entirely so all communication goes through the C++ interface
B.the compatibility shim that lets old-architecture libraries keep working while the app runs on the modern renderer and module system
C.the open-source JavaScript engine optimized for mobile that precompiles to bytecode, cutting startup time and memory use
D.the cross-platform C++ flexbox layout engine that computes positions and sizes from style rules for the native renderer
Answer + AI explanation with Pro
11. Which term means: "the compatibility shim that lets old-architecture libraries keep working while the app runs on the modern renderer and module system"?
Senior
A.Hermes engine
B.interop layer
C.Yoga
D.bridgeless mode
Answer + AI explanation with Pro
12. Which statement is correct?
Senior
A.interop layer — the cross-platform C++ flexbox layout engine that computes positions and sizes from style rules for the native renderer
B.interop layer — the compatibility shim that lets old-architecture libraries keep working while the app runs on the modern renderer and module system
C.interop layer — the rewritten rendering system that builds a concurrent shadow tree in C++ and commits it synchronously, replacing the old UI manager
D.interop layer — the fully modernized runtime that removes the legacy message queue entirely so all communication goes through the C++ interface
Answer + AI explanation with Pro
13. What is bridgeless mode?
Mid
A.the fully modernized runtime that removes the legacy message queue entirely so all communication goes through the C++ interface
B.the compatibility shim that lets old-architecture libraries keep working while the app runs on the modern renderer and module system
C.the rewritten rendering system that builds a concurrent shadow tree in C++ and commits it synchronously, replacing the old UI manager
D.the open-source JavaScript engine optimized for mobile that precompiles to bytecode, cutting startup time and memory use
Answer + AI explanation with Pro
14. Which term means: "the fully modernized runtime that removes the legacy message queue entirely so all communication goes through the C++ interface"?
Mid
A.Fabric
B.interop layer
C.Yoga
D.bridgeless mode
Answer + AI explanation with Pro
15. Which statement is correct?
Mid
A.bridgeless mode — the compatibility shim that lets old-architecture libraries keep working while the app runs on the modern renderer and module system
B.bridgeless mode — the open-source JavaScript engine optimized for mobile that precompiles to bytecode, cutting startup time and memory use
C.bridgeless mode — the cross-platform C++ flexbox layout engine that computes positions and sizes from style rules for the native renderer
D.bridgeless mode — the fully modernized runtime that removes the legacy message queue entirely so all communication goes through the C++ interface
Answer + AI explanation with Pro
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