Cisco vs eBay Interview Questions
Cisco lists 87 LeetCode interview questions while eBay lists 62. They share 15 problems — 17% of Cisco's bank and 24% of eBay's. Focus on the overlap first, then drill into 72 Cisco-only and 47 eBay-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 15 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Cisco and eBay.
Step 2 — Company-specific depth: Add Cisco-specific problems like House Robber, Predict the Winner, Lucky Numbers in a Matrix and eBay-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
15 Shared Questions
High-priority problems to practice for both Cisco and eBay.
| Problem | Difficulty |
|---|---|
| Longest Palindromic Substring | Medium |
| Spiral Matrix | Medium |
| LRU Cache | Medium |
| Merge Intervals | Medium |
| Two Sum | Easy |
| Valid Parentheses | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Decode String | Medium |
| Number of Islands | Medium |
| 3Sum | Medium |
| Word Search | Medium |
| Group Anagrams | Medium |
| Top K Frequent Elements | Medium |
| Merge k Sorted Lists | Hard |
| Product of Array Except Self | Medium |
Unique to Cisco (72)
Problems in Cisco's list that do not appear at eBay.
| Problem | Difficulty |
|---|---|
| House Robber | Medium |
| Predict the Winner | Medium |
| Lucky Numbers in a Matrix | Easy |
| Rotate Image | Medium |
| Fizz Buzz | Easy |
| Snakes and Ladders | Medium |
| Number of Valid Words in a Sentence | Easy |
| Maximum Difference Between Increasing Elements | Easy |
| Find Third Transaction | Medium |
| Implement Router | Medium |
| Word Search II | Hard |
| Maximum Subarray | Medium |
Unique to eBay (47)
Problems in eBay's list that do not appear at Cisco.
| 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 |
| Open the Lock | Medium |
| Binary Tree Cameras | Hard |
| Word Ladder | Hard |
| Pow(x, n) | Medium |
Frequently Asked Questions
How many LeetCode questions do Cisco and eBay share?
Cisco and eBay share 15 LeetCode interview questions. 72 problems appear only in Cisco's list and 47 appear only in eBay's list.
What topics overlap most between Cisco and eBay?
The most common shared topics between Cisco and eBay are Array (9 shared questions), String (6 shared questions), Hash Table (5 shared questions), Sorting (4 shared questions), Matrix (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Cisco or eBay?
Cisco has 24 Easy, 50 Medium, and 13 Hard questions. eBay has 10 Easy, 39 Medium, and 13 Hard questions. eBay has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Cisco and eBay?
Start with the 15 shared problems since they cover what both companies ask most often. Then add 20 Cisco-specific and 20 eBay-specific questions to round out your prep.