16. - Python:
Score: 8
Qualitative Assessment: Good
Description: Varun's experience with Python is strong, but he could demonstrate more advanced applications relevant to the IT Architect role.

17. - JavaScript:
Score: 7
Qualitative Assessment: Good
Description: Varun has a good grasp of JavaScript, although more detailed examples of his work could have been discussed.

18. - MySQL:
Score: 7
Qualitative Assessment: Good
Description: Varun understands MySQL well; however, discussing his experience with complex database tasks would provide a better insight into his capabilities.

19. - Data analysis libraries:
Score: 6
Qualitative Assessment: Average
Description: Varun mentioned using data analysis libraries but did not detail how he has applied them in projects, which is crucial for the role.

20. - Web frameworks:
Score: 6
Qualitative Assessment: Average
Description: While Varun has experience with web frameworks, more specific examples of his work would help assess his expertise better.