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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group of protocols with different functions
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group of protocols with similar functions
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Either A or B
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None of the above
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Detailed explanation-1: -In networking, layering means to break up the sending of messages into separate components and activities. Each component handles a different part of the communication. This can be referred to as the Transmission Control Protocol/Internet Protocol (TCP/IP) model.
Detailed explanation-2: -A network protocol is an established set of rules that determine how data is transmitted between different devices in the same network. Essentially, it allows connected devices to communicate with each other, regardless of any differences in their internal processes, structure or design.
Detailed explanation-3: -This can be referred to as the Transmission Control Protocol/Internet Protocol-TCP/IP-model. Layering enables standards to be put in place and simply adapted as new hardware and software is developed.
Detailed explanation-4: -This layer works at the user end to interact with user applications. QoS (quality of service), file transfer and email are the major popular services of the application layer. This layer uses following protocols: HTTP, SMTP, DHCP, FTP, Telnet, SNMP and SMPP.