Which of the following methods can generate DStream objects?

In Spark, SparkSQL is an independent module, which can independently complete SQL statement parsing, optimization, and execution without relying on SparkCore.

In FusionInsight HD, the Streaming packaging tool is used to package the business code jar package and other dependent jar packages into a complete Streaming application jar package

What are the several parameter setting methods for Spark applications? (multiple choices)

The rowkey design of HBase table is a very important development and design link.
Suppose there are the following scenarios. The most frequent query scenario is based on the mobile phone number to query the historical call records every month and every six months. Which of the following rowkey designs is the best?