Apache Spark Certification Practice Test

Initiating a standalone master server in Apache Spark involves using the appropriate script that is designed specifically for starting the master process. The correct choice involves the script located in the `sbin` directory, named `start-master.sh`.

This script is part of Spark's setup for managing cluster resources and scheduling tasks. When executed, it initializes the master node, allowing it to manage worker nodes and distribute workloads efficiently across the cluster. The structure and placement of the script within the `sbin` directory also indicate its specialized purpose for system operations, as `sbin` generally contains scripts for system-level administration tasks.

The other options either refer to incorrect scripts or scripts not meant for starting the master server in Spark. For instance, the `./bin/start-spark.sh` script does not specifically relate to the standalone master; it is typically used for starting Spark's components, whereas options like `./start-master-command.sh` and `./sbin/run-master.sh` do not exist within the Spark distribution, which further supports the correctness of using `start-master.sh` for this task.