Palo Alto Networks Coding Interview Questions (2026)
Most-reported questions and how to practice them
47 coding questions reported by candidates for Palo Alto Networks, sorted by how often they were reported. Source: community-sourced LeetCode company lists.
What the Palo Alto Networks question data shows
Of the 47 questions reported for Palo Alto Networks, 62% are medium, 13% are hard and 26% are easy. The most reported are LRU Cache, Find the Longest Equal Subarray, Longest Substring Without Repeating Characters, String Compression, Logger Rate Limiter.
This list comes from community-sourced LeetCode company lists. It covers coding questions only. It does not tell us how many rounds Palo Alto Networks runs, what each round covers, or what it pays, and those change by role, level and team, so we do not list them. Ask your recruiter what each round covers, and check the company's careers page.
Prepare for the rest of the loop with the coding interview patterns guide, the system design framework, and the STAR method guide. Written by Kieron.
Practice what you read with a free AI mock interview, see how the tools compare in our AI interview copilot comparison, or check Aissence pricing.
Palo Alto Networks Interview Questions
47 LeetCode questions — sorted by frequency. Question frequency is community-sourced from public interview reports and may not reflect the current process; verify details with the employer.
Last reviewed: September 5, 2026 · Source: LeetCode company-wise interview questions (community reports) · Reviewed by the Aissence Editorial Team.
LRU Cache
Find the Longest Equal Subarray
Longest Substring Without Repeating Characters
String Compression
Logger Rate Limiter
Median of Two Sorted Arrays
Group Anagrams
Binary Tree Level Order Traversal
Min Stack
Design HashMap
Integer to Roman
Top K Frequent Words
Insert Delete GetRandom O(1)
Restore IP Addresses
Search in Rotated Sorted Array
Longest Common Prefix
Minimum Number of Food Buckets to Feed the Hamsters
Decode String
Advantage Shuffle
Reverse Linked List II
Tips for Success at Palo Alto Networks
Start with the 30 most reported Palo Alto Networks questions, then work down the list.
Mediums are the bulk of the list (62%), so spend most of your time there.
Time yourself: 20 to 30 minutes per medium, then explain your solution out loud as if to an interviewer.
After each problem write down the pattern and the signal that revealed it. Patterns transfer to problems you have not seen.
Pair coding practice with a system design framework and prepared behavioral stories; most loops include more than coding.
How to Practice for Palo Alto Networks Interviews
Practice answering out loud with an AI interviewer built from your resume and the job description, and get a score and specific fixes for each answer. We are not affiliated with Palo Alto Networks, and the mock interview is general practice rather than a simulation of Palo Alto Networks's own format.
- ✓ Free mock interview built from your resume and the job description
- ✓ Desktop Interview Copilot for live interviews, where the rules allow it
- ✓ Behavioral practice with feedback on structure and specifics
- ✓ System design practice with follow-up questions
Frequently Asked Questions
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