EMERGING TRENDS IN COMPUTING
INTERNET OF THINGS IOT
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[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Detailed explanation-1: -TCP or UDP ports are defined in either layer 4 of the OSI model or layer 3 of the TCP/IP model, both are defined as the ‘transport’ layer.
Detailed explanation-2: -The transport layer is the layer at which TCP/IP ports listen. For instance, the standard port which HTTP listens on is TCP Port 80, although HTTP could really run on any TCP port; this is the standard.
Detailed explanation-3: -Transport Layer uses a port number to deliver the segmented data to the correct process amongst the multiple processes that are running on a particular host. A port number is a 16-bit address used by transport layer to identify any client-server program.
Detailed explanation-4: -The use of ports and their identifying numbers are an extension to the addressing scheme. Once the address is used to deliver data to the wanted host on the network, the port number is used to identify the process for which the data is used. This enables one host to provide more than one service.