Optimization Interview Questions

14 real Optimization questions asked in live technical interviews — each with a model answer. Updated weekly.

🎤 Auto-captured by Assisting AI during live interviews

These Optimization interview questions were captured from real interviews by candidates using Assisting AI. Each links to a full model answer. For real-time help during your own interview, get Assisting AI from ₹500/day.

What specific techniques do you use while optimizing a monthly subscription price?🟡 Medium · Conceptual · Asked 1×How do you handle performance when processing a large number of records?🟡 Medium · Conceptual · Asked 1×How do you optimize a PySpark job?🟡 Medium · Conceptual · Asked 1×What specific techniques have you used while optimizing price per person?🟡 Medium · Behavioral · Asked 1×Are you aware of any Spark optimization techniques that have been used in projects?🟡 Medium · Conceptual · Asked 1×How would you optimize Spark jobs?🟡 Medium · Conceptual · Asked 1×What are the different Spark optimization techniques?🟡 Medium · Conceptual · Asked 1×Can you tell about any optimization techniques in PySpark?🟡 Medium · Conceptual · Asked 1×Let's have a scenario: let's say a database is experiencing performance bottlenecks. How would you optimize it to work better?🟡 Medium · Conceptual · Asked 1×Can you explain how you optimize SQL code when the client does not want to disturb existing data?🟡 Medium · Conceptual · Asked 1×Are Spark SQL queries optimized? Are their execution plans optimized? Can you create an execution plan with Spark?🟡 Medium · Conceptual · Asked 1×What join configuration optimization technique would you apply to fix crashes without increasing memory usage?🟡 Medium · Conceptual · Asked 1×Why do we need to take timing into account?🟢 Easy · Conceptual · Asked 1×How do you optimize Azure Data Factory?🟡 Medium · Conceptual · Asked 1×

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