Port security is a Cisco switch feature that controls which devices can connect to a switch port. It li…
EtherChannel combines several physical links between two switches into one logical link. This gives you…
Spanning Tree Protocol (STP) is a switch protocol that prevents loops in a Layer 2 network. When you co…
NAT (Network Address Translation) lets devices with private IP addresses reach the internet using a pub…
A Cisco ACL (Access Control List) is a list of rules that tells a router which traffic to allow and whi…
Subnetting means dividing one big network into smaller networks, called subnets . It helps you organize…
What is ARP? ARP stands for Address Resolution Protocol . It helps a device find the MAC address of ano…