What type of files are located in /etc/stats/preset used with sysstat to customize output?

• A. XML files
• B. JSON files
• C. YAML files
• D. INI files

Answer: (A)

Preset configurations used by sysstat are defined as XML files. This format provides a clear, hierarchical way to describe exactly which statistics to collect, how to organize them, and how to format the output. The /etc/stats/preset directory contains these XML definitions that sysstat reads when you tailor the display, enabling complex, structured configurations that map directly to the performance metrics you want to monitor. XML’s tag-based structure and ability to express nested relationships make it well-suited for representing the relationships between counters, groups, and formatting rules. JSON, YAML, or INI formats don’t fit this particular configuration pattern as cleanly or consistently with the parser expectations, which is why XML is the chosen type here.