21. - **excel for data analysis**:
Score: 2
Qualitative Assessment: Needs Improvement
Description: Tanmay did not demonstrate Excel skills for data analysis. He should have discussed using formulas or data validation.

22. - **basic database schema design**:
Score: 2
Qualitative Assessment: Needs Improvement
Description: Tanmay did not discuss database schema design. He should have mentioned designing or optimizing schemas.

23. - **dax basics**:
Score: 2
Qualitative Assessment: Needs Improvement
Description: Tanmay did not mention DAX basics. He should have discussed using DAX for data transformation in Power BI.

24. - **problem-solving skills**:
Score: 3
Qualitative Assessment: Needs Improvement
Description: Tanmay did not demonstrate problem-solving skills in data engineering. He should have discussed addressing data-related challenges.

25. null:
Score: 0
Qualitative Assessment: Not relevant
Description: This parameter is not applicable as there was no response related to it.