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DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK · Question #42
DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK Question #42: Real Exam Question with Answer & Explanation
The correct answer is D: MEMORY_AND_DISK_2. See the full explanation below for the reasoning.
Data Persistence and Caching
Question
Which of the following storage levels should be used to store as much data as possible in memory on two cluster nodes while storing any data that does not fit in memory on disk to be read in when needed?
Options
- AMEMORY_ONLY_2
- BMEMORY_AND_DISK_SER
- CMEMORY_AND_DISK
- DMEMORY_AND_DISK_2
- EMEMORY_ONLY
Topics
#Spark Storage Levels#RDD Persistence#Data Caching#Fault Tolerance
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