Data communication and computer networks pdf in hindi

#DATA COMMUNICATION AND COMPUTER NETWORKS PDF IN HINDI SOFTWARE#

To alleviate the amount of broadcast traffic being sent and received on a LAN, the network can be broken into multiple VLANs. This is where the concept of virtual LANs ( VLANs) comes into play.Д«ecause an Ethernet LAN is a shared medium, if an organization has too many devices connected to a single LAN, the amount of broadcast traffic - which is heard by all devices on the LAN - can create congestion and bottlenecks.

#DATA COMMUNICATION AND COMPUTER NETWORKS PDF IN HINDI SOFTWARE#

But larger LANs that connect thousands of devices require additional hardware, software and configuration steps to ensure the network is performing optimally. For small businesses with only a handful of devices, a wired LAN can consist of a single unmanaged LAN switch with enough Ethernet ports to interconnect all devices. A wired LAN uses switches and Ethernet cabling to connect endpoints, servers and internet of things (IoT) devices to the corporate network. There are two primary LAN types: wired LANs and wireless LANs ( WLANs).

Legacy LAN technologies, including token ring, Fiber Distributed Data Interface ( FDDI) and Attached Resource Computer Network ( ARCNET) have lost favor as Ethernet and Wi-Fi speeds increased and connectivity costs decreased. Wi-Fi uses radio waves in the 2.4 gigahertz and 5 GHz spectrum to connect computers to the LAN. Ethernet is an Institute of Electrical and Electronics Engineers (IEEE) specification that enables computers to communicate with each other. Ethernet and Wi-Fi are the two primary ways to enable LAN connections. Larger LANs often include Layer 3 switches or routers to streamline traffic flows.ДЄ LAN enables users to connect to internal servers, websites and other LANs that belong to the same wide area network (WAN). LAN networking requires Ethernet cables and Layer 2 switches along with devices that can connect and communicate using Ethernet. Homeowners and information technology (IT) administrators set up LANs so that network nodes can communicate and share resources such as printers or network storage. A local area network may serve as few as two or three users in a home office or thousands of users in a corporation's central office. A local area network (LAN) is a group of computers and peripheral devices that share a common communications line or wireless link to a server within a distinct geographic area.

Data communication and computer networks pdf in hindi