Arista Networks vs Zenefits Interview Questions
Arista Networks lists 39 LeetCode interview questions while Zenefits lists 21. They share 3 problems — 8% of Arista Networks's bank and 14% of Zenefits's. Focus on the overlap first, then drill into 36 Arista Networks-only and 18 Zenefits-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 3 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Arista Networks and Zenefits.
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 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
3 Shared Questions
High-priority problems to practice for both Arista Networks and Zenefits.
| Problem | Difficulty |
|---|---|
| Course Schedule II | Medium |
| LRU Cache | Medium |
| Valid Palindrome | Easy |
Unique to Arista Networks (36)
Problems in Arista Networks's list that do not appear at Zenefits.
| 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 |
| 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 |
| Missing Number | Easy |
Unique to Zenefits (18)
Problems in Zenefits's list that do not appear at Arista Networks.
| Problem | Difficulty |
|---|---|
| Median of Two Sorted Arrays | Hard |
| Graph Valid Tree | Medium |
| Number of Islands | Medium |
| Reverse Linked List | Easy |
| Course Schedule | Medium |
| Valid Parentheses | Easy |
| Generate Parentheses | Medium |
| Min Stack | Medium |
| Majority Element II | Medium |
| Excel Sheet Column Title | Easy |
| Majority Element | Easy |
| Trapping Rain Water | Hard |
Frequently Asked Questions
How many LeetCode questions do Arista Networks and Zenefits share?
Arista Networks and Zenefits share 3 LeetCode interview questions. 36 problems appear only in Arista Networks's list and 18 appear only in Zenefits's list.
What topics overlap most between Arista Networks and Zenefits?
The most common shared topics between Arista Networks and Zenefits are Depth-First Search (1 shared questions), Breadth-First Search (1 shared questions), Graph Theory (1 shared questions), Topological Sort (1 shared questions), Hash Table (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Arista Networks or Zenefits?
Arista Networks has 12 Easy, 26 Medium, and 1 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 Arista Networks and Zenefits?
Start with the 3 shared problems since they cover what both companies ask most often. Then add 20 Arista Networks-specific and 18 Zenefits-specific questions to round out your prep.