Arista Networks vs Qualcomm Interview Questions
Arista Networks lists 39 LeetCode interview questions while Qualcomm lists 62. They share 11 problems — 28% of Arista Networks's bank and 18% of Qualcomm's. Focus on the overlap first, then drill into 28 Arista Networks-only and 51 Qualcomm-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 11 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Arista Networks and Qualcomm.
Step 2 — Company-specific depth: Add Arista Networks-specific problems like Construct String With Repeat Limit, Find the Town Judge, Restore IP Addresses and Qualcomm-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Qualcomm skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
11 Shared Questions
High-priority problems to practice for both Arista Networks and Qualcomm.
| Problem | Difficulty |
|---|---|
| Reverse Nodes in k-Group | Hard |
| Course Schedule II | Medium |
| Maximum Depth of Binary Tree | Easy |
| LRU Cache | Medium |
| Permutations | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Swap Nodes in Pairs | Medium |
| Edit Distance | Medium |
| Moving Average from Data Stream | Easy |
| Implement Queue using Stacks | Easy |
| Merge Two Sorted Lists | Easy |
Unique to Arista Networks (28)
Problems in Arista Networks's list that do not appear at Qualcomm.
| Problem | Difficulty |
|---|---|
| Construct String With Repeat Limit | Medium |
| Find the Town Judge | Easy |
| 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 |
| Copy List with Random Pointer | Medium |
| Missing Number | Easy |
| Search in Rotated Sorted Array | Medium |
| Rotated Digits | Medium |
Unique to Qualcomm (51)
Problems in Qualcomm's list that do not appear at Arista Networks.
| Problem | Difficulty |
|---|---|
| String Compression III | Medium |
| Maximum Number of Ones | Hard |
| Number of Islands | Medium |
| Two Sum | Easy |
| Reverse Linked List | Easy |
| Valid Parentheses | Easy |
| Palindrome Number | Easy |
| Remove Nth Node From End of List | Medium |
| Reverse Bits | Easy |
| 3Sum | Medium |
| Rotate Image | Medium |
| Power of Two | Easy |
Frequently Asked Questions
How many LeetCode questions do Arista Networks and Qualcomm share?
Arista Networks and Qualcomm share 11 LeetCode interview questions. 28 problems appear only in Arista Networks's list and 51 appear only in Qualcomm's list.
What topics overlap most between Arista Networks and Qualcomm?
The most common shared topics between Arista Networks and Qualcomm are Linked List (4 shared questions), Recursion (3 shared questions), Design (3 shared questions), Depth-First Search (2 shared questions), Breadth-First Search (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Arista Networks or Qualcomm?
Arista Networks has 12 Easy, 26 Medium, and 1 Hard questions. Qualcomm has 28 Easy, 25 Medium, and 9 Hard questions. Qualcomm has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Arista Networks and Qualcomm?
Start with the 11 shared problems since they cover what both companies ask most often. Then add 20 Arista Networks-specific and 20 Qualcomm-specific questions to round out your prep.