I'm in the process of getting my ccent accreditation and hopefully a ccna not long after. I've played around a little with Linux and I've noticed some similarities between the Linux code and Cisco's networking code but it's not exact. Being entry level I don't know enough about either yet to say with certainty if there is a dual application or connection. Hoping someone here more experienced and skilled than myself might be able to shed some light on this.

Let's put it this way: I'm not a coder or an IT professional, and even I know that GNU/Linux (and UNIX-like OSs in general) is very relevant to networking.
The internet (and other networks) runs on Linux (and UNIX-like OSs like *BSD*), so to speak.

You can explain by listing current facts and also with the order of historical events. I am not even sure that I understand the OP's use of “relevant”. The question as such is as basic as knowing to do anything with a computer. Would there be some precise event or circumstance which pointed at an unexplained conclusion, we could handle the topic much better.

Maybe the history of network computing is – if not the answer – a starting point for study.
Edit: It definitely is. I just verified.

And I remember that with WfW or Windows 3.1 I had to install WinTCP (probably not what it is nowadays) to connect to anything. It took me some years to understand what a socket is... but by that time, I found them lying around just everywhere...

Question to the OP, as I become suspicious: What is that thing “code”?

How relevant linux is for networking ?

a. you can use a computer (with at least 2 interfaces) as a router with a linux distro (example: ipfire, Endian etc)
b. cisco's code for IOS & Nx-OS is based on *nix code base [as per my web search]
c. Check out some awesome contributions of wind river linux in embedded & n/w devices (https://en.wikipedia.org/wiki/Wind_R...nd_River_Linux)

It all boils down to what you are trying to achieve -
- if you want to set up a home router with advanced filtering, firewall, custom rules(forwarding etc), VLANs, VPN support etc, you can do it the DIY way with a computer, or get a dedicated n/w device.
- The general concepts of networking would remain same, but obviously the commands will be different.

Link to spam.com in the dot '.' at the end.
Spammer reported.

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I would put it this way: Cisco sell a few routers, and do accreditation. CCNA is good floss on your CV.

Linux Runs the internet really. If you go into an isp, they will have a few BSD boxes, but mainly Gnu/Linux x86_64 servers. Even Arm boxes with a fabulous watts per core ratio are coming in. Cisco uses an outgrowth of the non-standardized Unix of the early days. Gnu/Linux is a much more sophisticated OS.

So you can practise Knowledge Bulimia with your Cisco syntax - learn it(the syntax) for the test, then forget it.

Really?? Didn't you get it six years ago here?
https://www.reddit.com/r/linux/comme...to_networking/

Another spammer; reported.

They put ANOTHER spam link in there!

Reported again.

Please BAN this spammer.

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Funny, I didn't notice those. In fact I do so many typos I could have been your spammer :P. Which posts?

Post #5, and the link is in the underscore after Thanks.