eBay vs Palo Alto Networks Interview Questions
eBay lists 62 LeetCode interview questions while Palo Alto Networks lists 46. They share 10 problems — 16% of eBay's bank and 22% of Palo Alto Networks's. Focus on the overlap first, then drill into 52 eBay-only and 36 Palo Alto Networks-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 10 overlapping problems first. These are the highest-yield questions for candidates interviewing at both eBay and Palo Alto Networks.
Step 2 — Company-specific depth: Add eBay-specific problems like Remove One Element to Make the Array Strictly Increasing, Alternating Digit Sum, Partition Equal Subset Sum and Palo Alto Networks-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: eBay skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
10 Shared Questions
High-priority problems to practice for both eBay and Palo Alto Networks.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Two Sum | Easy |
| Merge Intervals | Medium |
| Valid Parentheses | Easy |
| Longest Palindromic Substring | Medium |
| Group Anagrams | Medium |
| Reconstruct Itinerary | Hard |
| Top K Frequent Words | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Decode String | Medium |
Unique to eBay (52)
Problems in eBay's list that do not appear at Palo Alto Networks.
| Problem | Difficulty |
|---|---|
| Remove One Element to Make the Array Strictly Increasing | Easy |
| Alternating Digit Sum | Easy |
| Partition Equal Subset Sum | Medium |
| Binary Gap | Easy |
| Minimize Maximum Pair Sum in Array | Medium |
| Minimum Window Subsequence | Hard |
| Design Skiplist | Hard |
| Subtree of Another Tree | Easy |
| Spiral Matrix | Medium |
| Top K Frequent Elements | Medium |
| Open the Lock | Medium |
| Number of Islands | Medium |
Unique to Palo Alto Networks (36)
Problems in Palo Alto Networks's list that do not appear at eBay.
| Problem | Difficulty |
|---|---|
| Find the Longest Equal Subarray | Medium |
| Logger Rate Limiter | Easy |
| String Compression | Medium |
| Add Two Numbers | Medium |
| Design HashMap | Easy |
| Search in Rotated Sorted Array | Medium |
| Minimum Number of Food Buckets to Feed the Hamsters | Medium |
| Min Stack | Medium |
| Binary Tree Level Order Traversal | Medium |
| Merge Sorted Array | Easy |
| Median of Two Sorted Arrays | Hard |
| Insert Delete GetRandom O(1) | Medium |
Frequently Asked Questions
How many LeetCode questions do eBay and Palo Alto Networks share?
eBay and Palo Alto Networks share 10 LeetCode interview questions. 52 problems appear only in eBay's list and 36 appear only in Palo Alto Networks's list.
What topics overlap most between eBay and Palo Alto Networks?
The most common shared topics between eBay and Palo Alto Networks are String (7 shared questions), Hash Table (5 shared questions), Array (5 shared questions), Sorting (4 shared questions), Stack (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: eBay or Palo Alto Networks?
eBay has 10 Easy, 39 Medium, and 13 Hard questions. Palo Alto Networks has 12 Easy, 29 Medium, and 5 Hard questions. eBay has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both eBay and Palo Alto Networks?
Start with the 10 shared problems since they cover what both companies ask most often. Then add 20 eBay-specific and 20 Palo Alto Networks-specific questions to round out your prep.