Palo Alto Networks vs Zenefits Interview Questions
Palo Alto Networks lists 46 LeetCode interview questions while Zenefits lists 21. They share 5 problems — 11% of Palo Alto Networks's bank and 24% of Zenefits's. Focus on the overlap first, then drill into 41 Palo Alto Networks-only and 16 Zenefits-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 5 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Palo Alto Networks and Zenefits.
Step 2 — Company-specific depth: Add Palo Alto Networks-specific problems like Find the Longest Equal Subarray, Logger Rate Limiter, String Compression and Zenefits-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Zenefits skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
5 Shared Questions
High-priority problems to practice for both Palo Alto Networks and Zenefits.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Min Stack | Medium |
| Median of Two Sorted Arrays | Hard |
| Sliding Window Maximum | Hard |
| Valid Parentheses | Easy |
Unique to Palo Alto Networks (41)
Problems in Palo Alto Networks's list that do not appear at Zenefits.
| Problem | Difficulty |
|---|---|
| Find the Longest Equal Subarray | Medium |
| Logger Rate Limiter | Easy |
| String Compression | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Add Two Numbers | Medium |
| Design HashMap | Easy |
| Search in Rotated Sorted Array | Medium |
| Group Anagrams | Medium |
| Decode String | Medium |
| Minimum Number of Food Buckets to Feed the Hamsters | Medium |
| Binary Tree Level Order Traversal | Medium |
| Merge Intervals | Medium |
Unique to Zenefits (16)
Problems in Zenefits's list that do not appear at Palo Alto Networks.
| Problem | Difficulty |
|---|---|
| Graph Valid Tree | Medium |
| Number of Islands | Medium |
| Reverse Linked List | Easy |
| Course Schedule | Medium |
| Course Schedule II | Medium |
| Generate Parentheses | Medium |
| Majority Element II | Medium |
| Excel Sheet Column Title | Easy |
| Majority Element | Easy |
| Trapping Rain Water | Hard |
| Convert Sorted List to Binary Search Tree | Medium |
| N-Queens II | Hard |
Frequently Asked Questions
How many LeetCode questions do Palo Alto Networks and Zenefits share?
Palo Alto Networks and Zenefits share 5 LeetCode interview questions. 41 problems appear only in Palo Alto Networks's list and 16 appear only in Zenefits's list.
What topics overlap most between Palo Alto Networks and Zenefits?
The most common shared topics between Palo Alto Networks and Zenefits are Design (2 shared questions), Stack (2 shared questions), Array (2 shared questions), Hash Table (1 shared questions), Linked List (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Palo Alto Networks or Zenefits?
Palo Alto Networks has 12 Easy, 29 Medium, and 5 Hard questions. Zenefits has 5 Easy, 11 Medium, and 5 Hard questions. Zenefits has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Palo Alto Networks and Zenefits?
Start with the 5 shared problems since they cover what both companies ask most often. Then add 20 Palo Alto Networks-specific and 16 Zenefits-specific questions to round out your prep.