Design a cost-aware resource strategy for a Databricks workload with spiky and batch jobs. Explain Dynamic Resource Allocation, when to disable it, and how min/max executors and spot instances affect cost and SLAs.
Spark/Big Datahard
2
How does AQE optimize join operations dynamically?
SQLhard
3
Explain Delta Time Travel and the purpose of the vacuum command.
Spark/Big Datahard
4
Explain the architecture of Spark, including the roles of driver, executors, DAGs, and SparkContext.
Spark/Big Datahard
5
How do Delta Tables handle large-scale data updates efficiently?
Spark/Big Datahard
6
How do caching strategies impact memory management in Databricks?
Spark/Big Datahard
7
How do you configure retention periods for Delta tables?
Spark/Big Datahard
8
How do you decide the number of partitions for repartitioning data in Spark?
Spark/Big Datahard
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