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Q. Define layered network model?
- The OSI Reference Model is collection of seven layers every specifying particular network functions.
- The process of breaking up the functions or else tasks of networking into layers reduces complexity.
- Every layer provides a service to the layer above it in the protocol specification.
- Every layer communicates with the same layer's software or hardware on other computers.
- The lower 4 layers (network, transport, data link and physical -Layers 3, 4, 2, and 1) are concerned with the flow of data from end to end through the network.
- The upper top four layers of the OSI model (application and presentation and session-Layers 6, 7and 5) are orientated more toward services to the applications.
- Data is encapsulated with the essential protocol information as it moves down the layers before network transit.
Q. What is Subnetting ? Subnetting IP addressing is hierarchical First reach a device through its network id (netid) Then reach the host itself using the se
Many benefits of configuring VLAN as listed below: • Performance Enhancements: It reduces heavy load on the network by permitting operations at lower latencies by using VLAN t
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CAM- Content Address Memory. Its another name of MAC address table.
OSI= Open System Interconnection.
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