Oracle vs ServiceNow Interview Questions
Oracle lists 314 LeetCode interview questions while ServiceNow lists 71. They share 51 problems — 16% of Oracle's bank and 72% of ServiceNow's. Focus on the overlap first, then drill into 263 Oracle-only and 20 ServiceNow-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 51 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Oracle and ServiceNow.
Step 2 — Company-specific depth: Add Oracle-specific problems like Merge k Sorted Lists, Meeting Rooms II, Spiral Matrix and ServiceNow-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Oracle skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
51 Shared Questions
High-priority problems to practice for both Oracle and ServiceNow.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Number of Islands | Medium |
| Two Sum | Easy |
| Group Anagrams | Medium |
| Top K Frequent Elements | Medium |
| Sliding Window Maximum | Hard |
| Valid Parentheses | Easy |
| Merge Intervals | Medium |
| Longest Palindromic Substring | Medium |
| Minimum One Bit Operations to Make Integers Zero | Hard |
| LFU Cache | Hard |
| Asteroid Collision | Medium |
| Container With Most Water | Medium |
| Reverse Linked List | Easy |
| Trapping Rain Water | Hard |
| Rotting Oranges | Medium |
| Maximum Subarray | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Binary Tree Right Side View | Medium |
| Generate Parentheses | Medium |
| Sort Colors | Medium |
| Median of Two Sorted Arrays | Hard |
| Coin Change | Medium |
| Zigzag Conversion | Medium |
| First Missing Positive | Hard |
| Kth Largest Element in an Array | Medium |
| Simplify Path | Medium |
| Word Ladder | Hard |
| Letter Combinations of a Phone Number | Medium |
Showing top 30 of 51 shared problems.
Unique to Oracle (263)
Problems in Oracle's list that do not appear at ServiceNow.
| Problem | Difficulty |
|---|---|
| Merge k Sorted Lists | Hard |
| Meeting Rooms II | Medium |
| Spiral Matrix | Medium |
| Search in Rotated Sorted Array | Medium |
| Remove All Adjacent Duplicates in String II | Medium |
| 3Sum | Medium |
| Longest Consecutive Sequence | Medium |
| Min Stack | Medium |
| Minimum Absolute Difference | Easy |
| Valid Anagram | Easy |
| Find Valid Pair of Adjacent Digits in String | Easy |
| Roman to Integer | Easy |
Unique to ServiceNow (20)
Problems in ServiceNow's list that do not appear at Oracle.
Frequently Asked Questions
How many LeetCode questions do Oracle and ServiceNow share?
Oracle and ServiceNow share 51 LeetCode interview questions. 263 problems appear only in Oracle's list and 20 appear only in ServiceNow's list.
What topics overlap most between Oracle and ServiceNow?
The most common shared topics between Oracle and ServiceNow are Array (17 shared questions), Hash Table (9 shared questions), String (9 shared questions), Dynamic Programming (7 shared questions), Breadth-First Search (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Oracle or ServiceNow?
Oracle has 61 Easy, 194 Medium, and 59 Hard questions. ServiceNow has 7 Easy, 51 Medium, and 13 Hard questions. Oracle has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Oracle and ServiceNow?
Start with the 51 shared problems since they cover what both companies ask most often. Then add 20 Oracle-specific and 20 ServiceNow-specific questions to round out your prep.