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Quiz · 4 questions

🔀 Backend Selection and Multi-Backend Thinking

One API, three engines

Level 0Keras Apprentice
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Quiz

01What is the default Keras 3 backend?
Hint
TensorFlow is the default backend.
02Which backend typically offers the best JIT compilation performance?
Hint
JAX uses XLA for JIT compilation and typically achieves the highest raw performance on GPU/TPU.
03What format allows cross-backend model saving/loading?
Hint
The .keras format is backend-agnostic.
04What does keras.ops.concatenate map to in TensorFlow?
Hint
keras.ops.concatenate dispatches to tf.concat when using the TensorFlow backend.
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