A2A What network certifications teach about stuff that is happening inside an ISP?
So you want to be a networking geek?
Yes, I agree, certifications alone are not enough to succeed, you also need actual work experience, but the OP is asking for advice on what should they should learn, and some of the answers here are missing the point.
I know with working with many technicians and engineers over the years, when you are self taught, or have been taught by mainly one source, you have gaps in your knowledge. I know that from job interviews as well, I would get asked a question, and I would think, huh, I never had to do that, maybe I should know how.
Throughout my career in technology I have gone through periods of formal training, followed by periods of on the job experiences. You need both.
If you are a newbie at computer networking, the Comptia Network+ is a good basic place to start. I am a network administrator and a systems administrator. My personal learning is geared towards the systems I am working with. For you the next step depends on what hardware or software your current (or potential) employer is using. I could tell you learn Cisco and Linux, but if that's not important to the place you hope to work, you've wasted your time.
If you are currently working somewhere right now, don't be afraid to ask what training might be available. Many vendors, companies that sell hardware and software, offer many online courses for free. I have never turned down any formal training when offered, and never turn down the chance to take a course or get a certification if someone else is offering to pay.
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