networking fundamentals
3
stories in this section
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Networking Fundamentals and CCNA Preparation
Knowing how to prepare for CCNA starts with one decision: your background. Absolute beginners often need 10–12 weeks of lab-based study, while people with helpdesk or junior network experience can compress that to about eight weeks. This guide sequences networking fundamentals into CCNA-level skills, with a practical lab step at each stage. For a domain-by-domain…
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TCP/IP Model vs OSI Model Compared
In the TCP/IP model vs OSI model comparison, OSI’s seven layers suit learning and troubleshooting, while TCP/IP’s four layers describe how the internet actually runs, according to Lightyear. Learn both. Readers working towards certification can pair this comparison with a guide on how to prepare for ccna. The 7 layers of the osi model guide…
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Ethernet and MAC Addresses
What is a MAC address? It is a unique identifier that a manufacturer assigns to a network interface controller (NIC). It is 48 bits long and identifies a device on the local network, not across the internet. A laptop is plugged into an office switch, and a colleague asks which address the switch reads when…