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What is the difference betweendf.

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What is the difference betweendf.cache()anddf.persist()in Spark DataFrame?

A.

Bothcache()andpersist()can be used to set the default storage level (MEMORY_AND_DISK_SER)

B.

Both functions perform the same operation. Thepersist()function provides improved performance asits default storage level isDISK_ONLY.

C.

persist()- Persists the DataFrame with the default storage level (MEMORY_AND_DISK_SER) andcache()- Can be used to set different storage levels to persist the contents of the DataFrame.

D.

cache()- Persists the DataFrame with the default storage level (MEMORY_AND_DISK) andpersist()- Can be used to set different storage levels to persist the contents of the DataFrame

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