Databricks Certified Data Engineer - Professional
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When reviewing the Storage tab in the Spark UI for a table supposedly cached with the MEMORY_ONLY storage level, which of the following indicators suggests that the caching strategy is not functioning optimally or as configured?_
A
The RDD Block Name includes the "" annotation, indicating a failure to cache specific partitions.
B
The number of Cached Partitions exceeds the total number of Spark Partitions.
C
Size on Disk is greater than 0.
D
On-Heap Memory Usage is within 75% of Off-Heap Memory Usage.
E
Size on Disk is significantly smaller than Size in Memory.