Which of the following is an example of a third-party logging service?

A third-party logging service refers to an external application or platform that collects, stores, and analyzes log data from various sources. The correct choice, Splunk, is a well-known log management and analysis tool used by organizations to monitor and analyze their log data in real time. It provides a user-friendly interface and powerful search capabilities, allowing users to derive meaningful insights from their logs across different systems and platforms.

In contrast, Syslog and rsyslog are standard logging protocol implementations commonly found in Unix-like systems. They manage and route log messages from various services, but they are typically part of the internal logging infrastructure rather than third-party services. Logrotate is a utility for managing log file sizes and rotating them on UNIX-like systems, so while it is essential for log management, it does not provide the comprehensive analysis or external storage features that characterize third-party logging services like Splunk.