Briefly explain how a POP3 server works
What will be an ideal response?
A POP3 server provides basic mailbox services. A client needs a service such as a POP3 server because clients, in general, are not always connected to the Internet or to the network that provides their e-mail. Because clients are not always connected, they are not always available to receive incoming e-mail from an SMTP server. This is where POP3 comes in. A POP3 server is, or at least should be, always connected to the network so that it is always available to receive e-mail from an SMTP server. The POP3 server can temporarily store the client's e-mail in a mailbox so that the client can eventually access and download his or her mail. POP3 uses well-known port 110.
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Which of the following describes the per-unit cost of making the product or delivering the service?
A) development costs B) variable costs C) direct fixed costs D) fixed costs
Which of the following is a primary customer-based metric?
A) market share B) sales volume C) return on investment D) lifetime duration