Final answer:
The single default user in Splunk Enterprise is known as the 'admin' user, serving as the initial account for system setup and configuration tasks.
Step-by-step explanation:
Splunk Enterprise is a robust platform for searching, analyzing, and visualizing machine-generated data gathered from various sources. When first installed, Splunk Enterprise has a single default user known as the 'admin' user. This user has full system privileges and is intended for initial setup tasks, after which it's best practice to create additional users with more limited permissions tailored to their specific roles within the system.
The default admin user typically has a default password as well, which should be changed during the initial configuration to maintain system security. The username can also be used for various administrative tasks such as managing configurations, creating and modifying users and groups, and setting up data inputs.