フリー問題

問題文

A manufacturing team wants repeated reads of the same Parquet files to be faster without changing any code. Which two statements about the disk cache are correct? (Select two.)

選択肢

1. The disk cache applies to any DataFrame or RDD, which makes it more general than the Spark cache.
2. The disk cache stores in-memory blocks, so it is lost only when the cluster runs out of memory.
3. The disk cache requires an explicit invalidation command whenever table data changes.
4. The disk cache is triggered automatically on the first read, without code changes.
5. The disk cache automatically detects when files are created, deleted, modified, or overwritten and invalidates stale entries.