TRANSPORT LAYER
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Well-known
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Registered
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Dynamic or Private
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None of the above
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Detailed explanation-1: -Ephemeral ports are also called dynamic ports, because they are used on a per request basis, and are only known by number once allocated.
Detailed explanation-2: -Well-known ports are used only to establish communication between client and server processes. After that, the server allocates an ephemeral port number for subsequent use. Ephemeral port numbers are unique port numbers, which are assigned dynamically when processes start communicating.
Detailed explanation-3: -When we refer to web servers as providing services over port 80, that’s a non-ephemeral port. That port is always going to be port 80 on that web server and that IP address so that everybody knows what port number to use on that device to access those web servers. Ephemeral ports are temporary port numbers.