A network is a connection of two or more devices through a common linking method. Networking devices play a very important role as they are used in establishing a network connection.
Types of Networking Devices:-
NIC (Network Interface Card) :
As the name itself suggests, it is used to provide an interface to connect with a network. There are two types of NICs available :
- Wired NIC
- Wireless NIC
It is a layer 1 device of OSI Model which is used to regenerate, boost or amplify the weak signals. There are two types of repeaters available :
- Wired Repeater
- Wireless Repeater
It is a central networking device that is used to connect multiple LAN segments with each other. It is a layer 1 device, it performs broadcasting and comes with 2 to 24 ports. There are three types of hub available :
- Active Hub
- Passive Hub
- Hybrid Hub
It is a layer 2 device which is used to connect multiple LAN segments, it is a program based design, it comes with 2 to 4 ports and it performs broadcasting (It is now replaced by switch).
It is the most common central networking device which is used to connect multiple LAN segments with each other, it comes with 4 to 48 ports and it performs unicasting. There are two types of switches available :
- Manageable Switch
- Non-manageable Switch
It is a layer 3 device that is used to communicate different-different LANs to each other, so we can say that it is a WAN device. It is also responsible to find the best way from source to destination.
It is the combination of modulator and demodulator, it converts analog signals into digital signals and digital signals into analog signals. It includes :
- DCE (Data Communication Equipment)
- DTE (Data Terminal Equipment)
It basically refers to the entry and exit points on any LAN.
It is use to control the network traffic and to protect the network from unauthorized access. There are two types of firewall :
- Software/Application Firewall
- Hardware Firewall