Passive optical networks PONs bring high broadband speeds and fiber to end users' doorsteps. IT pros should know what a PON is and how it can provide network solutions. Communication protocols allow different network devices to communicate with each other. They are used in both analog and digital communications and can be used for important processes, ranging from transferring files between devices to accessing the internet. Network management protocols define and describe the various procedures needed to effectively operate a computer network.
These protocols affect various devices on a single network — including computers, routers and servers — to ensure each one, and the network as a whole, perform optimally. Security protocols, also called cryptographic protocols, work to ensure that the network and the data sent over it are protected from unauthorized users.
Network protocols do not simply define how devices and processes work; they define how devices and processes work together. Without these predetermined conventions and rules, the internet would lack the necessary infrastructure it needs to be functional and useable. Network protocols are the foundation of modern communications, without which the digital world could not stand.
Download the exam objectives to see all the topics covered by this IT certification. Read more about Computer Networks. Tags : Computer Networks. Continue Reading Below You may also be interested in Are You Ready for a Networking Career? We have to take permission from the organization if we want to use their protocols. It is not a standard protocol and it supports only specific devices. We may have to pay for these protocols. The key elements of the protocol determine what to be communicated, how it is communicated, and when it is communicated.
Syntax refers to the structure or format of data and signal levels. It indicates how to read the data in the form of bits or fields. It also decides the order in which the data is presented to the receiver. Example: A protocol might expect that the size of a data packet will be 16 bits. So, every communication that is following that protocol should send bit data. Semantics refers to the interpretation or meaning of each section of bits or fields.
It specifies which field defines what action. It defines how a particular section of bits or pattern can be interpreted, and what action needs to be taken. It includes control information for coordination and error handling. Example: It interprets whether the bits of address identify the route to be taken or the final destination of the message or something else.
Example: A sender can send the data at a speed of Mbps, but the receiver can consume it only at a speed of 20 Mbps, then there may be data losses or the packets might get dropped. So, proper synchronization must be there between a sender and a receiver.
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Admin AfterAcademy 6 Dec What are Protocols and what are the key elements of protocols? Share this blog and spread the knowledge. Share On Facebook. Share On Twitter. Share On LinkedIn. Share On Telegram. Share On Reddit. Share On WhatsApp. Stay up to date.
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