Arista Networks vs PayPal Interview Questions
Arista Networks lists 39 LeetCode interview questions while PayPal lists 105. They share 10 problems — 26% of Arista Networks's bank and 10% of PayPal's. Focus on the overlap first, then drill into 29 Arista Networks-only and 95 PayPal-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 Arista Networks and PayPal.
Step 2 — Company-specific depth: Add Arista Networks-specific problems like Construct String With Repeat Limit, Find the Town Judge, Reverse Nodes in k-Group and PayPal-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: PayPal 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 Arista Networks and PayPal.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Search in Rotated Sorted Array | Medium |
| Merge In Between Linked Lists | Medium |
| Palindromic Substrings | Medium |
| Longest Palindromic Substring | Medium |
| Word Search | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Maximum Subarray | Medium |
| Swap Nodes in Pairs | Medium |
| Top K Frequent Elements | Medium |
Unique to Arista Networks (29)
Problems in Arista Networks's list that do not appear at PayPal.
| Problem | Difficulty |
|---|---|
| Construct String With Repeat Limit | Medium |
| Find the Town Judge | Easy |
| Reverse Nodes in k-Group | Hard |
| Restore IP Addresses | Medium |
| Reorder List | Medium |
| Course Schedule II | Medium |
| Reverse Linked List II | Medium |
| Remove Linked List Elements | Easy |
| Contains Duplicate II | Easy |
| Inorder Successor in BST II | Medium |
| Maximum Depth of Binary Tree | Easy |
| Copy List with Random Pointer | Medium |
Unique to PayPal (95)
Problems in PayPal's list that do not appear at Arista Networks.
Frequently Asked Questions
How many LeetCode questions do Arista Networks and PayPal share?
Arista Networks and PayPal share 10 LeetCode interview questions. 29 problems appear only in Arista Networks's list and 95 appear only in PayPal's list.
What topics overlap most between Arista Networks and PayPal?
The most common shared topics between Arista Networks and PayPal are Array (4 shared questions), String (4 shared questions), Hash Table (3 shared questions), Linked List (3 shared questions), Dynamic Programming (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Arista Networks or PayPal?
Arista Networks has 12 Easy, 26 Medium, and 1 Hard questions. PayPal has 19 Easy, 69 Medium, and 17 Hard questions. PayPal has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Arista Networks and PayPal?
Start with the 10 shared problems since they cover what both companies ask most often. Then add 20 Arista Networks-specific and 20 PayPal-specific questions to round out your prep.