As for DBMS knowledge, that's something that doesn't routinely fall into the skillset of most focused network administrators. Perhaps these friends of yours think you may be suited for work as a database administrator, designer, or architect. But that's a whole 'nother story, and I won't address it further here than to say that everything else you've told me does not lead in that direction.
HTH, and good luck with your career planning and development.
Dig deeper on IT Career Development and Training
Related Q&A from Ed Tittel, Networking Career, Certification Expert
The cyber security skills shortage comes from an aging workforce and lack of interest in security among students. Emphasis must be put on education ...continue reading
Career expert Ed Tittel provides advice for the best way to get started when entering the IT job market.continue reading
Career expert Ed Tittel explains how the value of VMware certs has changed since 2005.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.