#Routers
Layer 3 Device
Usage IP addresses (rational) to path website traffic
Link various networks
#Firewall.
Layer 3, 4, 7 (innovative).
Implements policies for network website traffic, both outbound and inbound.
Kinds: Hardware, Software, Network, Host, Cloud.
Techniques: Packet Filtering, Stateful Inspection, Proxy.
Gain access to Points.
Layer 1 and Layer 2.
Transform cordless signals to wired signals and the other way around.
SSID broadcasting and information transmission.
Layer 1.
Traditional button with much less innovation.
Half-Duplex.
Broadcasting.
No knowledge.
Cord Modem.
Layer 1, 2, 3.
Transforms Internet information to coax cable and after that to Ethernet.
Regular for home and local business.
Supplied by ISP, frequently consists of numerous features.
Network Interface Card (NIC).
Layer 1, 2.
Equipment enabling a gadget to attach to a network.
Kinds: Wired, Wireless, Fiber, Integrated.
Power over Ethernet (#PoE ).
Layer 1, 2, 3.
Power transmission over Ethernet, normally for IP phones.
Injectors: Used for non-PoE buttons.
Criteria: IEEE 802.3 af, IEEE 802.3 at, IEEE 802.3 bt.
Center.
#Switches
Layer 2 Device
Usage MAC addresses (physical).
Attach gadgets on the exact same network.
Taken care of: Configurable.
Unmanaged: Ready out of package.
Optical Network Terminal (ONT).
Layer 1, 2, 3.
Transforms fiber-optic signals to electric signals for LAN tools.
Link: ISP – FOC – ONT – Ethernet.
Spot Panel.
Layer 1.
Company and administration of cords.
#CompTIA #CompTIAPlus #CompTIA 2201101 #ITCertification #TechTraining #ITFundamentals #CompTIAExamPrep #Networking.
Software Program Defined Network (SDN).
Layer 3, 4, 7.
Networking strategy handled using software program.
Parts: Controller, Data Plane, Control Plane.
