XSIAM-Analyst Data Analysis With XQL Practice Question
An analyst wants to extract a substring from a file path using a regular expression and store it in a new field. Which XQL function accomplishes this inside an 'alter' command?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
alter filename = regextract(file_path, "\\([^\\]+)$")
The 'regextract' function extracts substrings based on regular expression capture groups.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
alter filename = extract(file_path, regex="...")
Why it's wrong here
extract is not structured this way; regextract is the standard function.
- ✗
alter filename = substr_regex(file_path, "...")
Why it's wrong here
substr_regex is not a valid function name.
- ✓
alter filename = regextract(file_path, "\\([^\\]+)$")
Why this is correct
regextract uses regex capture groups to pull specific substrings into a new field.
- ✗
alter filename = split(file_path, "/")
Why it's wrong here
split creates an array of substrings rather than extracting via regex.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Palo Alto Networks exam blueprint
This XSIAM-Analyst practice question is part of Courseiva's free Palo Alto Networks certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the XSIAM-Analyst exam.