21. - **excel (advanced functions)**:
Score: 2
Qualitative Assessment: Needs Improvement
Description: Tanmay did not discuss advanced Excel functions. He should highlight his experience with data cleaning and analysis using Excel.

22. - **data validation**:
Score: 2
Qualitative Assessment: Needs Improvement
Description: Tanmay did not discuss data validation, which is crucial for ensuring data accuracy. He should focus on his experience with data validation techniques.

23. - **dashboard creation**:
Score: 2
Qualitative Assessment: Needs Improvement
Description: Tanmay did not mention dashboard creation. He should discuss any experience with creating visualizations or dashboards.

24. - **problem-solving**:
Score: 4
Qualitative Assessment: Average
Description: Tanmay mentioned using data analytics for optimization but did not provide specific examples of problem-solving in data engineering.

25. null:
Score: 0
Qualitative Assessment: Not relevant
Description: No relevant response provided.