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Which TensorFlow function can you use to configure a categorical column if you don't know all of the possible values for that column?
Correct Answer: B
If you know the set of all possible feature values of a column and there are only a few of them, you can use categorical_column_with_vocabulary_list. Each key in the list will get assigned an auto-incremental ID starting from 0. What if we don't know the set of possible values in advance? Not a problem. We can use categorical_column_with_hash_bucket instead. What will happen is that each possible value in the feature column occupation will be hashed to an integer ID as we encounter them in training. Reference: https://www.tensorflow.org/tutorials/wide