explain 4 networking devices with their functions
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explain 4 networking devices with their functions
explain 4 networking devices with their functions
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HUB is used to connect multiple computers in a single workgroup LAN network. Typically HUBs are available with 4,8,12,24,48 ports.
Network Interface Card (NIC)
In the list of networking devices, NIC stands on first place. Without this device, networking cannot be done. This is also known as network adapter card, Ethernet Card and LAN card. NIC allows our PC to communicate with other PCs. Basically it converts data transmission technology. A PC uses parallel data transmission technology to transmit data between its internal parts while the media that connects this PC with other PCs uses serial data transmission technology. A NIC converts parallel data stream into serial data stream and vice versa serial data stream is get converted in parallel data stream.
Patch Panel :- It is used to organize the UTP cables systematically. It doesn’t interfere in data signal.
Firewall
A firewall is a security layer which once configured keeps internal network safe from unauthorized external users. There are two types of firewall; software firewall and hardware firewall.