2.2 Networking Hardware Flashcards
Routers
Route traffic between IP subnets
What Layer of the OSI model is the Router
(Layer 3 Device)
Routers can connect diverse network types, such as
LAN, WAN, Copper, & Fiber
Switches
Route traffic directly to devices using MAC address
Difference between Routers & Switches
Switches send packets directly to devices rather than sending them to networks like a router does
Unmanaged Switches
Very few configuration options
Unmanaged Switches disadvantages
No VLAN configurations & little configuration with other devices
Unmanaged Switches Advantages
Low price point
Managed Switches
Connect multiple LAN networks
Managed Switches Advantages
VLAN support
Access Points
Are a bridge that extends wired network onto wireless network
Patch Panel
Permanent cable run on one end and easily manageable cables connecting to switches on the other end
Firewall
Filters traffic by port number (Layer 4 Device)
What Layer of the OSI model is the Firewall
Layer 4
(PoE) Stands for
Power over Ethernet
Power over Ethernet (PoE)
Provide power for a device using the ethernet cable
Power over Ethernet (PoE) Injectors
Used when the switch does not support PoE to allow it to work
Power over Ethernet (PoE) Switch
Commonly shown on the Switch interface
Power over Ethernet (PoE) standards are
PoE, PoE+, & PoE++
PoE Standard
IEEE 802.3af
PoE+ Standard
IEEE 802.3at
PoE++ Standard
IEEE 802.3bt
Hub
Before Switches, traffic in one port is repeated to all other ports
Cable Modem
Broadband communication - multiple frequencies over a single cable
