Describe why and how a Web client uses ephemeral ports.
What will be an ideal response?
A Web client uses ephemeral ports to help keep information from multiple sessions separate. For instance, if a client has multiple Web pages open, the use of ephemeral ports identifies which session the returning data belongs to. For instance, a request sent to a Web page used the destination port number 80, and the source port number was an automatically generated value between 49152 and 65535 (also known as dynamic or private ports). When the server responds, it uses the ephemeral port as the destination port, and the Web client knows which session to send it to.
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