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Palo Alto Networks interview questions

45 questions28 coding2 system design15 behavioral6 freeUpdated

This is every question in the Palo Alto Networks guide, in one list: 28 coding problems, 2 system designs and 15 behavioral questions, drawn from what candidates report about Palo Alto Networks interviews.

Each row shows the round it comes from and links to the lesson that works through it. 6 are free to read in full. The other 39 are Premium, and here you still see their round, difficulty and topic, so you know what you're walking into.

Open the Palo Alto Networks guide Unlock all 45

Palo Alto Networks coding interview questions

28 problems, in the order the guide teaches them. Each lesson gives the full problem, a worked solution and the follow-ups interviewers tend to add.

1Bottom View of a Binary Tree: Horizontal-Distance SweepFreeMediumTrees & Recursion
2Remove Nodes With One Child: Post-Order SpliceFreeMediumTrees & Recursion
3Nested List Counts: Roll Up Every LevelFreeMediumTrees & Recursion
4Validate Binary Search Tree: Bounds Passed DownFreeMediumTrees & Recursion
5Left View of a Binary Tree: First Node per LevelFreeMediumTrees & Recursion
6Premium medium problemMediumGraphs and Process Trees
7Premium medium problemMediumGraphs and Process Trees
8Premium medium problemMediumGraphs and Process Trees
9Premium hard problemHardGraphs and Process Trees
10Premium easy problemEasyLinked List Basics
11Premium easy problemEasyLinked List Basics
12Premium easy problemEasyLinked List Basics
13Premium medium problemMediumBuild a Data Structure
14Premium medium problemMediumBuild a Data Structure
15Premium medium problemMediumBuild a Data Structure
16Premium hard problemHardBuild a Data Structure
17Premium medium problemMediumBuild a Data Structure
18Premium medium problemMediumHashing & CS Basics
19Premium medium problemMediumHashing & CS Basics
20Premium easy problemEasyHashing & CS Basics
21Premium medium problemMediumHashing & CS Basics
22Premium hard problemHardArrays and Intervals
23Premium medium problemMediumArrays and Intervals
24Premium medium problemMediumArrays and Intervals
25Premium medium problemMediumArrays and Intervals
26Premium medium problemMediumStrings and Anagrams
27Premium medium problemMediumStrings and Anagrams
28Premium medium problemMediumStrings and Anagrams

Palo Alto Networks system design interview questions

2 designs, each worked end to end in its own lesson, from requirements to the architecture and its trade-offs.

#Question
1Design a NAT ServiceFree
2Design a Scalable Alert Manager (Premium)

A lock means the design is named here and its walkthrough is Premium.

Palo Alto Networks behavioral interview questions

15 questions, grouped by what the interviewer is testing. The lesson explains why each one gets asked and what a strong answer covers.

Why Palo Alto Networks, and why security (3)

All 3 are Premium

Execution under pressure, and the production incident (3)

All 3 are Premium

Disruption and moving fast (3)

All 3 are Premium

Collaboration and technical disagreement (3)

All 3 are Premium

Integrity and the customer (3)

All 3 are Premium

Read the Palo Alto Networks behavioral questions

See all 45 Palo Alto Networks questions by name

Premium opens the 39 locked questions on this page, each with the full prompt and a worked answer, and every other lesson in all 100 company guides.

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Common questions

How many questions are in the Palo Alto Networks interview guide?

45: 28 coding problems, 2 system designs and 15 behavioral questions. The guide was last updated in November 2026.

Which rounds do these Palo Alto Networks interview questions come from?

All 28 coding problems come from the coding rounds. The 2 system designs and 15 behavioral questions come from the system design and behavioral rounds. Every row in the list carries its round, so you can start with the one you have booked.

Which Palo Alto Networks interview questions are free?

6 of the 45 are free to read in full, marked Free in the list. The other 39 come with Premium, which also opens all 100 company guides.