COMPUTER NETWORKS AND COMMUNICATIONS
NETWORK TOPOLOGIES AND PROTOCOLS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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One layer can be altered without having to redesign the entire system
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So that they can be like onions
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Either A or B
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None of the above
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Detailed explanation-1: -Layering allows standards to be put in place and simply adapted as new hardware and software is developed. Similarly, the move from IPv4 addressing to IPv6 affects only the network layer-the other layers remain unaffected. This allows improvements to be made without having to redefine whole communication methods.
Detailed explanation-2: -A set of layers and protocols is called the network architecture.
Detailed explanation-3: -A protocol stack refers to a group of protocols that are runnning concurrently that are employed for the implementation of network protocol suite.
Detailed explanation-4: -These protocols are often conceptualized in a model consisting of a series of layers, each of which deals with one functional aspect of the communication. Each layer has a well-defined interface to the layer immediately above and below it.