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188+ Salesforce questions

Salesforce interview questions and how to prepare

The questions candidates report from Salesforce interviews, sorted by how often they come up, with difficulty and topics, plus original practice written in Salesforce's interview style.

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ZorixOS tracks 188 community-reported Salesforce interview questions, drawn from an open-source dataset of real interview reports and sorted by how frequently each one comes up. Every question links to its source. Alongside them are 78 original ZorixOS practice questions written in Salesforce's known interview style (not claimed as asked at Salesforce), so you can rehearse the real format. Practice any of them out loud in a free AI mock interview tuned to Salesforce.

Updated July 2026

Salesforce interview questions candidates report

Community-reported from real Salesforce interviews (open-source dataset), most-asked first. Showing 60 of 188. Each links to its source.

  1. Minimum Operations to Reduce an Integer to 0
    Dynamic ProgrammingGreedyBit Manipulation
    Medium100% asked
  2. String Compression
    Two PointersString
    Medium100% asked
  3. Time Needed to Rearrange a Binary String
    StringDynamic ProgrammingSimulation
    Medium100% asked
  4. Maximum Palindromes After Operations
    ArrayHash TableStringGreedy
    Medium91% asked
  5. Maximum Team Size with Overlapping Intervals
    Medium87% asked
  6. LFU Cache
    Hash TableLinked ListDesignDoubly-Linked List
    Hard83% asked
  7. Closest Equal Element Queries
    ArrayHash TableBinary Search
    Medium82% asked
  8. Subarray Sum Equals K
    ArrayHash TablePrefix Sum
    Medium77% asked
  9. Minimum Removals to Balance Array
    ArrayBinary SearchSliding WindowSorting
    Medium76% asked
  10. Subarray Product Less Than K
    ArrayBinary SearchSliding WindowPrefix Sum
    Medium76% asked
  11. Maximum Number of Occurrences of a Substring
    Hash TableStringSliding Window
    Medium73% asked
  12. Smallest Substring With Identical Characters I
    ArrayBinary SearchEnumeration
    Hard73% asked
  13. Smallest Substring With Identical Characters II
    StringBinary Search
    Hard73% asked
  14. Minimize Malware Spread
    ArrayHash TableDepth-First SearchBreadth-First Search
    Hard71% asked
  15. Remove Adjacent Almost-Equal Characters
    StringDynamic ProgrammingGreedy
    Medium71% asked
  16. Distinct Subsequences
    StringDynamic Programming
    Hard70% asked
  17. Power Grid Maintenance
    ArrayHash TableDepth-First SearchBreadth-First Search
    Medium70% asked
  18. Maximum Product of Three Numbers
    ArrayMathSorting
    Easy69% asked
  19. LRU Cache
    Hash TableLinked ListDesignDoubly-Linked List
    Medium68% asked
  20. Longest Substring Without Repeating Characters
    Hash TableStringSliding Window
    Medium66% asked
  21. Minimum Edge Reversals So Every Node Is Reachable
    Dynamic ProgrammingDepth-First SearchBreadth-First SearchGraph Theory
    Hard66% asked
  22. Minimum Replacements to Sort the Array
    ArrayMathGreedy
    Hard66% asked
  23. Minimum Time to Visit All Houses
    ArrayPrefix Sum
    Medium66% asked
  24. Number of Islands
    ArrayDepth-First SearchBreadth-First SearchUnion-Find
    Medium66% asked
  25. Split a String in Balanced Strings
    StringGreedyCounting
    Easy66% asked
  26. Delete and Earn
    ArrayHash TableDynamic Programming
    Medium64% asked
  27. Merge Intervals
    ArraySorting
    Medium64% asked
  28. Palindromic Substrings
    Two PointersStringDynamic Programming
    Medium64% asked
  29. Count the Number of Fair Pairs
    ArrayTwo PointersBinary SearchSorting
    Medium62% asked
  30. Maximum Frequency Stack
    Hash TableStackDesignOrdered Set
    Hard62% asked
  31. Minimize Maximum Component Cost
    Binary SearchUnion-FindGraph TheorySorting
    Medium62% asked
  32. Binary Tree Maximum Path Sum
    Dynamic ProgrammingTreeDepth-First SearchBinary Tree
    Hard61% asked
  33. Course Schedule II
    Depth-First SearchBreadth-First SearchGraph TheoryTopological Sort
    Medium61% asked
  34. Group Anagrams
    ArrayHash TableStringSorting
    Medium61% asked
  35. Longest Common Subsequence
    StringDynamic Programming
    Medium61% asked
  36. Average Waiting Time
    ArraySimulation
    Medium61% asked
  37. Beautiful Towers I
    ArrayStackMonotonic Stack
    Medium61% asked
  38. Beautiful Towers II
    ArrayStackMonotonic Stack
    Medium61% asked
  39. Check If a Number Is Majority Element in a Sorted Array
    ArrayBinary Search
    Easy61% asked
  40. Check Whether Two Strings are Almost Equivalent
    Hash TableStringCounting
    Easy61% asked
  41. Count the Number of Inversions
    ArrayDynamic Programming
    Hard61% asked
  42. Equalize Strings by Adding or Removing Characters at Ends
    StringBinary SearchDynamic ProgrammingSliding Window
    Medium61% asked
  43. Find Subarray With Bitwise OR Closest to K
    ArrayBinary SearchBit ManipulationSegment Tree
    Hard61% asked
  44. Find the Minimum Area to Cover All Ones I
    ArrayMatrix
    Medium61% asked
  45. Find the Minimum Area to Cover All Ones II
    ArrayMatrixEnumeration
    Hard61% asked
  46. Height Checker
    ArraySortingCounting Sort
    Easy61% asked
  47. Matrix Similarity After Cyclic Shifts
    ArrayMathMatrixSimulation
    Easy61% asked
  48. Maximize Grid Happiness
    Dynamic ProgrammingBit ManipulationMemoizationBitmask
    Hard61% asked
  49. Maximum Height of a Triangle
    ArrayEnumeration
    Easy61% asked
  50. Maximum Number That Makes Result of Bitwise AND Zero
    StringGreedySorting
    Medium61% asked
  51. Number of Self-Divisible Permutations
    ArrayMathDynamic ProgrammingBacktracking
    Medium61% asked
  52. Best Time to Buy and Sell Stock
    ArrayDynamic Programming
    Easy58% asked
  53. Count Subarrays With Median K
    ArrayHash TablePrefix Sum
    Hard58% asked
  54. K-diff Pairs in an Array
    ArrayHash TableTwo PointersBinary Search
    Medium58% asked
  55. Number of Divisible Triplet Sums
    ArrayHash Table
    Medium58% asked
  56. Collect Coins in a Tree
    ArrayTreeGraph TheoryTopological Sort
    Hard58% asked
  57. Strange Printer
    StringDynamic Programming
    Hard58% asked
  58. Find the Last Marked Nodes in Tree
    TreeDepth-First Search
    Hard56% asked
  59. All Nodes Distance K in Binary Tree
    Hash TableTreeDepth-First SearchBreadth-First Search
    Medium55% asked
  60. Count Palindromic Subsequences
    StringDynamic Programming
    Hard55% asked

These are the 60 most-reported of 188 tracked Salesforce questions. Create a free account to drill the full set with solutions and an AI interviewer.

Practice questions in Salesforce's style

Original ZorixOS questions written the way Salesforce interviews, so you rehearse the real format. Not claimed as asked at Salesforce.

  1. Imagine a large Salesforce customer is experiencing intermittent performance issues with their Service Cloud console. How would you approach debugging this, considering the potential impact of custom Apex triggers, integrations with external systems, and network latency?

    Software EngineerDebugging and Performance OptimizationTests: Evaluates problem-solving skills in a complex, real-world Salesforce environment.

  2. You're tasked with designing a system to handle real-time notifications for Chatter posts mentioning a user across a large number of accounts and users. Describe the architectural considerations, potential bottlenecks, and how you'd ensure scalability and reliability.

    Software EngineerSystem Design and ScalabilityTests: Assesses ability to design scalable and reliable distributed systems for a high-volume platform.

  3. A Salesforce org is seeing slow load times for the Opportunity page. Describe how you would use Apex debugging logs and SOQL query analysis to identify and resolve performance bottlenecks, specifically looking for inefficient queries or excessive trigger execution.

    Software EngineerApex Debugging and SOQL OptimizationTests: Tests proficiency in diagnosing performance issues within the Salesforce platform's code execution.

  4. Design a system to de-duplicate Leads in Salesforce at scale. Consider the challenges of data volume, potential conflicts, and how to ensure data integrity while merging records.

    Software EngineerSystem Design and Data IntegrityTests: Evaluates system design skills with a focus on data management and scalability.

  5. Given a scenario where a Lightning Web Component is experiencing unacceptably long load times, outline your systematic approach to identify the root cause. What tools and techniques would you employ, and what are common pitfalls in LWC performance?

    Software EngineerFrontend Performance DebuggingTests: Probes ability to troubleshoot and optimize frontend performance for Salesforce applications.

  6. You need to build a new integration between Salesforce Marketing Cloud and Sales Cloud to sync campaign engagement data. Describe the API strategy, data transformation logic, and error handling mechanisms you would implement.

    Software EngineerAPI Integration DesignTests: Assesses understanding of integration patterns and data synchronization challenges.

72+ more Salesforce-style questions are in the free library, each practiceable live with adaptive follow-ups and an honest scorecard. Start free.

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Salesforce Interview Questions (2026) | ZorixOS