I would like to make a small addendum to my previous post about the OSI model and PDUs. What was named quickly in the Network+ videos was what protocols actually function on which layers, which I found interesting. So let me enrich you with a few examples!
To clarify a little bit, after mentioning the Network+ certification a couple of times now: I’m going to get this certification in preparation of my Linux certifications. Just like the A+ certification it is to re-establish a solid base for all new knowledge. I’m doing pretty good I must say and I’m still enjoying it all.
And like the A+, the Network+ is not that hard with almost 20 years of IT administration experience, but it will take a lot of your time! Anyway, the OSI model…
OSI model and protocols
7. Application layer – BitTorrent, DNS, DHCP, HTTP, HTTPS, SMTP
6. Presentation layer – TLS, AFP
5. Session layer – NetBIOS, NFS, PPTP, RPC, SMB, SSH
4. Transport layer – BGP, FCP, iSCSI, TCP, UDP
3. Network layer – EIGRP, ICMP, IPv4, IPv6, IPSec, GRE
2. Data link layer – Ethernet, Frame relay, L2TP, STP, VTP
1. Physical layer – Modems, DSL, ISDN
They are just a few quick examples of the protocols I find interesting to know what is on which layer. One of my sources was Wikipedia.