Might finally be catching a break in the hunt for a good entry level job.

This job sounds like it should be basic Network trouble shooting doing things as simple as using PING or rebooting routers to start with. I just wondered if other more experienced people here have done this and know what I can expect to have to tackle.
I'm not certified yet, but I did tell the interviewer I have the big All In One A+ book from Mike Myers. I also mentioned I'm interested in Linux certification.
Also, I've been trying to workout how to approach Job Interviews and this time I dressed kind of business casual. Just a nice polo style shirt, slacks, and nice shoes. This is actually the second time I've interviewed at this company; the first time I wore a button down shirt and tie and felt way over dressed compared to the interviewer who was a tech with a polo shirt and khakis. I had a similar experience at another company being interviewed by a tech just wearing a polo while I had a button down shirt and tie. I didn't get that job either.
This isn't to say I believe this is now the standard, but I think it's getting to be more common. I feel like it's now up to job seekers to be aware of the local business culture and especially look at the websites of the companies they're interviewing for. Hopefully, the website has employee profile photos that indicate how formally people dress. Also, I'm sure this will change if someday I want to move up to some kind of Network Engineer job. I can see eventually having to wear a suit, but just wanted to share my experience trying to get an entry level job.
I also looked up the LinkedIn profile of the person who called me for the interview which gave me an edge. They mentioned an interest in photography so during the interview when asked about my interests I included that. Not BSing him, I really have done photography, but it helped me to know I could emphasize that in a conversation.