2.2 - CompTIA A+ Core 1

Router

Routes and forwards traffic between different IP subnets.

Layer 3 Switch

A switch that operates at Layer 3 of the OSI model, often providing routing capabilities.

Switch

Forwards traffic based on data link/MAC addresses, operating at layer 2 of the OSI model.

ASIC

Application-Specific Integrated Circuit used in switches for high throughput.

Managed Switch

A switch that provides configuration options like VLANs and traffic prioritization.

Unmanaged Switch

A basic switch with limited configuration options, often plug-and-play.

Virtual Local Area Network (VLAN)

Logical network architecture that segments network traffic for better organization.

Wireless Access Point (WAP)

Bridges connectivity from a wired network to a wireless network.

Patch Panel

Networking device that organizes and manages network cables in a central location.

Firewall

Filters traffic by IP addresses and port numbers, often operating at Layer 4 of the OSI model.

Power over Ethernet (PoE)

Allows networking devices to be powered via an ethernet cable.

Hub

A networking device that connects multiple Ethernet devices as a single network segment.

Cable Modem

Transmits multiple types of data using broadband communication.

Digital Subscriber Line (DSL)

Uses telephone connections for internet connectivity, with asymmetric speeds.

Optical Network Terminal (ONT)

Connects an ISP fiber network and converts optical signals to copper Ethernet.

Network Interface Card (NIC)

Allows network connectivity for devices including computers, printers, and servers.