Databricks Certified Associate Developer for Apache Spark — Question 16

Which of the following describes the Spark driver?

Answer options

• A. The Spark driver is responsible for performing all execution in all execution modes – it is the entire Spark application.
• B. The Spare driver is fault tolerant – if it fails, it will recover the entire Spark application.
• C. The Spark driver is the coarsest level of the Spark execution hierarchy – it is synonymous with the Spark application.
• D. The Spark driver is the program space in which the Spark application’s main method runs coordinating the Spark entire application.
• E. The Spark driver is horizontally scaled to increase overall processing throughput of a Spark application.

Correct answer: D

Explanation

The correct answer is D because the Spark driver is indeed the program space where the main method runs and coordinates the Spark application. Options A, B, C, and E misrepresent the role of the driver by either overstating its responsibilities or describing features that do not accurately reflect its function.