LinkedIn vs Palo Alto Networks Interview Questions
LinkedIn lists 141 LeetCode interview questions while Palo Alto Networks lists 46. They share 19 problems — 13% of LinkedIn's bank and 41% of Palo Alto Networks's. Focus on the overlap first, then drill into 122 LinkedIn-only and 27 Palo Alto Networks-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 19 overlapping problems first. These are the highest-yield questions for candidates interviewing at both LinkedIn and Palo Alto Networks.
Step 2 — Company-specific depth: Add LinkedIn-specific problems like Max Stack, Nested List Weight Sum II, All O`one Data Structure and Palo Alto Networks-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: LinkedIn skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
19 Shared Questions
High-priority problems to practice for both LinkedIn and Palo Alto Networks.
| Problem | Difficulty |
|---|---|
| Valid Parentheses | Easy |
| Search in Rotated Sorted Array | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Merge Intervals | Medium |
| LRU Cache | Medium |
| Binary Tree Level Order Traversal | Medium |
| Merge Two Sorted Lists | Easy |
| Two Sum | Easy |
| Binary Tree Zigzag Level Order Traversal | Medium |
| Design HashMap | Easy |
| Min Stack | Medium |
| Longest Palindromic Substring | Medium |
| Merge Sorted Array | Easy |
| Integer to Roman | Medium |
| Koko Eating Bananas | Medium |
| Maximum Profit in Job Scheduling | Hard |
| Longest Substring Without Repeating Characters | Medium |
| Diameter of Binary Tree | Easy |
| Median of Two Sorted Arrays | Hard |
Unique to LinkedIn (122)
Problems in LinkedIn's list that do not appear at Palo Alto Networks.
| Problem | Difficulty |
|---|---|
| Max Stack | Hard |
| Nested List Weight Sum II | Medium |
| All O`one Data Structure | Hard |
| Word Ladder | Hard |
| Find the Celebrity | Medium |
| Nested List Weight Sum | Medium |
| Design Authentication Manager | Medium |
| Find Leaves of Binary Tree | Medium |
| Shortest Word Distance II | Medium |
| Maximum Subarray | Medium |
| Max Consecutive Ones III | Medium |
| Number of Islands | Medium |
Unique to Palo Alto Networks (27)
Problems in Palo Alto Networks's list that do not appear at LinkedIn.
| Problem | Difficulty |
|---|---|
| Find the Longest Equal Subarray | Medium |
| Logger Rate Limiter | Easy |
| String Compression | Medium |
| Add Two Numbers | Medium |
| Group Anagrams | Medium |
| Decode String | Medium |
| Minimum Number of Food Buckets to Feed the Hamsters | Medium |
| Restore IP Addresses | Medium |
| Top K Frequent Words | Medium |
| Longest Common Prefix | Easy |
| Subarray Sum Equals K | Medium |
| Linked List Cycle | Easy |
Frequently Asked Questions
How many LeetCode questions do LinkedIn and Palo Alto Networks share?
LinkedIn and Palo Alto Networks share 19 LeetCode interview questions. 122 problems appear only in LinkedIn's list and 27 appear only in Palo Alto Networks's list.
What topics overlap most between LinkedIn and Palo Alto Networks?
The most common shared topics between LinkedIn and Palo Alto Networks are Array (9 shared questions), Hash Table (6 shared questions), String (4 shared questions), Binary Search (4 shared questions), Design (4 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: LinkedIn or Palo Alto Networks?
LinkedIn has 25 Easy, 90 Medium, and 26 Hard questions. Palo Alto Networks has 12 Easy, 29 Medium, and 5 Hard questions. LinkedIn has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both LinkedIn and Palo Alto Networks?
Start with the 19 shared problems since they cover what both companies ask most often. Then add 20 LinkedIn-specific and 20 Palo Alto Networks-specific questions to round out your prep.