Microsoft vs Palo Alto Networks Interview Questions
Microsoft lists 192 LeetCode interview questions while Palo Alto Networks lists 46. They share 26 problems — 14% of Microsoft's bank and 57% of Palo Alto Networks's. Focus on the overlap first, then drill into 166 Microsoft-only and 20 Palo Alto Networks-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 26 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Microsoft and Palo Alto Networks.
Step 2 — Company-specific depth: Add Microsoft-specific problems like Trapping Rain Water, Single Element in a Sorted Array, 3Sum and Palo Alto Networks-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Microsoft skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
26 Shared Questions
High-priority problems to practice for both Microsoft and Palo Alto Networks.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Merge Sorted Array | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Add Two Numbers | Medium |
| Longest Palindromic Substring | Medium |
| Merge Intervals | Medium |
| Median of Two Sorted Arrays | Hard |
| Valid Parentheses | Easy |
| Group Anagrams | Medium |
| Search in Rotated Sorted Array | Medium |
| Merge Two Sorted Lists | Easy |
| Longest Common Prefix | Easy |
| Binary Tree Zigzag Level Order Traversal | Medium |
| Integer to Roman | Medium |
| Binary Tree Level Order Traversal | Medium |
| Subarray Sum Equals K | Medium |
| Sliding Window Maximum | Hard |
| LRU Cache | Medium |
| Restore IP Addresses | Medium |
| Koko Eating Bananas | Medium |
| Basic Calculator | Hard |
| Reverse Linked List II | Medium |
| Word Break | Medium |
| Multiply Strings | Medium |
| Min Stack | Medium |
| Linked List Cycle | Easy |
Unique to Microsoft (166)
Problems in Microsoft's list that do not appear at Palo Alto Networks.
| Problem | Difficulty |
|---|---|
| Trapping Rain Water | Hard |
| Single Element in a Sorted Array | Medium |
| 3Sum | Medium |
| Maximum Subarray | Medium |
| Reverse Nodes in k-Group | Hard |
| Roman to Integer | Easy |
| Spiral Matrix | Medium |
| Climbing Stairs | Easy |
| Container With Most Water | Medium |
| Rotate Image | Medium |
| Palindrome Number | Easy |
| Merge k Sorted Lists | Hard |
Unique to Palo Alto Networks (20)
Problems in Palo Alto Networks's list that do not appear at Microsoft.
| Problem | Difficulty |
|---|---|
| Find the Longest Equal Subarray | Medium |
| Logger Rate Limiter | Easy |
| String Compression | Medium |
| Design HashMap | Easy |
| Decode String | Medium |
| Minimum Number of Food Buckets to Feed the Hamsters | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Top K Frequent Words | Medium |
| Design Twitter | Medium |
| Maximum Profit in Job Scheduling | Hard |
| Diameter of Binary Tree | Easy |
| Invert Binary Tree | Easy |
Frequently Asked Questions
How many LeetCode questions do Microsoft and Palo Alto Networks share?
Microsoft and Palo Alto Networks share 26 LeetCode interview questions. 166 problems appear only in Microsoft's list and 20 appear only in Palo Alto Networks's list.
What topics overlap most between Microsoft and Palo Alto Networks?
The most common shared topics between Microsoft and Palo Alto Networks are Array (10 shared questions), String (10 shared questions), Hash Table (8 shared questions), Linked List (5 shared questions), Math (4 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Microsoft or Palo Alto Networks?
Microsoft has 55 Easy, 109 Medium, and 28 Hard questions. Palo Alto Networks has 12 Easy, 29 Medium, and 5 Hard questions. Microsoft has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Microsoft and Palo Alto Networks?
Start with the 26 shared problems since they cover what both companies ask most often. Then add 20 Microsoft-specific and 20 Palo Alto Networks-specific questions to round out your prep.