21. - **excel proficiency**:
Score: 5
Qualitative Assessment: Average
Description: His proficiency in Excel was not fully demonstrated. He should discuss specific tasks and functions he's used.

22. - **data validation**:
Score: 5
Qualitative Assessment: Average
Description: Tanmay's experience with data validation was not clearly articulated. He should provide examples of how he's ensured data accuracy.

23. - **basic database schema design**:
Score: 5
Qualitative Assessment: Average
Description: His understanding of database schema design was not fully demonstrated. He should discuss his experience with designing and managing databases.

24. - **communication skills**:
Score: 6
Qualitative Assessment: Average
Description: Tanmay's communication skills were adequate, but he could improve by being more precise and engaging in his responses.

25. null:
Score: 0
Qualitative Assessment: Not relevant
Description: This parameter is not applicable to the interview conversation provided.