IBM Interview Questions (With Answers)

816 Questions asked

Mar 2026 First seen

Sep 2026 Last seen

816 Unique questions

🥧 Difficulty mix

How hard are these questions?

Easy 123 (15%)Medium 563 (69%)Hard 130 (16%)

📊 Question type

Breakdown by interview phase

🔥 12-week activity

When candidates are asked these

Last 12 weeks →

🏷️ Top topics

Where these questions cluster

Devops 94

Cloud Devops 70

Ai Machine Learning 60

Data Engineering 55

Databases Sql 44

Python 40

Algorithms Data Structures 40

Frontend 38

👤 Experience level mix

What seniority these are asked at

Fresher (0-1yr) 122Junior (1-3yr) 4Mid (3-6yr) 560Senior (6+yr) 130

📝 Recent questions

Latest 10 asked by candidates

🟡 Medium ✅

What challenges did you face while implementing this custom scoring function, such as performance or accuracy issues?

Elasticsearch Scoring Performance

Conceptual · Asked 1× · Sep 2026

🟡 Medium ✅

Can you describe your data architecture, specifically how you transition data from the silver layer to the gold layer?

Data Lake Bronze/silver/gold Data Architecture

Conceptual · Asked 1× · Sep 2026

🟡 Medium ✅

Apart from this, have you worked with any other real‑time data sources? If so, which ones?

Real‑time Data Sources Streaming Kafka

Conceptual · Asked 1× · Sep 2026

🟢 Easy ✅

Write Python code to compute the frequency of each number in the list `[1, 2, 2, 3, 3, 3, 4]`.

Python Frequency Counting

Coding · Asked 1× · Sep 2026

🟡 Medium ✅

Define an array of integers and write a function to determine if any two elements sum to a target value of 20.

Arrays Algorithms Two Sum

Coding · Asked 1× · Jul 2026

🟡 Medium ✅

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🥧 Difficulty mix

📊 Question type

🔥 12-week activity

🏷️ Top topics

👤 Experience level mix

📝 Recent questions

What challenges did you face while implementing this custom scoring function, such as performance or accuracy issues?

Can you describe your data architecture, specifically how you transition data from the silver layer to the gold layer?

Apart from this, have you worked with any other real‑time data sources? If so, which ones?

Write Python code to compute the frequency of each number in the list `[1, 2, 2, 3, 3, 3, 4]`.

Define an array of integers and write a function to determine if any two elements sum to a target value of 20.

What are common mistakes engineers make when using bitwise XOR?

How does Java interfaces work at a high level?

How would you troubleshoot a problem involving Java garbage collection?

How is canary typically used in a real system?

How would you migrate an existing system to Balancing safely?

🎤 Want these answered in real-time during your interview?