Corrext Answer: B

Explanations:

Correct Answer: A

Explanations: Using cluster pools reduces the cluster startup time. Cluster pools allow us to reserve VM's ahead of time, which means that its start-up time will be faster. So in this case, the reports can be refreshed quickly and not having to wait long for the cluster to start.

Explanations: Delta Lake is a key component of the Databricks Lakehouse Platform that provides several benefits, and one of the most significant benefits is its ability to support both batch and streaming workloads seamlessly. Delta Lake allows you to process and analyze data in real-time (streaming) as well as in batch, making it a versatile choice for various data processing needs.

Explanations: Delta tables in Databricks Delta Lake are stored in a collection of files organized in a directory structure. This directory structure includes data files, transaction log files, and metadata files. These files are stored in a specified location, typically in a distributed file system such as Hadoop Distributed File System (HDFS) or Amazon S3.