Post office protocol (POP) is a message access protocol which is used to…
2020
Post office protocol (POP) is a message access protocol which is used to extract message for client. In this regards, which of the following are true?
(A) POP has two modes, Delete mode and keep
(B) In Delete mode, mail is deleted from mail box after each retrival
(C) In Delete mode, mail is deleted from mail box before each retriveal
(D) In keep mode, mail is deleted before retrival
(E) In keep mode, mail remains in mail box after retrival
Choose the correct answer from the options given below:
- A.
(A) and (B) Only
- B.
(A), (D) and (E) Only
- C.
(A), (B),(C) and (D) Only
- D.
(A), (B) and (E) Only
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Correct answer: D
Answer: The true statements are that POP has two modes; in Delete mode mail is deleted from the mailbox after retrieval; and in keep mode mail remains in the mailbox after retrieval.
POP has two modes — True. POP typically supports a mode that removes messages from the server after retrieval (Delete mode) and a mode that leaves messages on the server (keep mode).
In Delete mode, mail is deleted from mailbox after each retrieval — True. Deletion happens after the client retrieves messages.
In Delete mode, mail is deleted from mailbox before each retrieval — False. Deletion does not occur before retrieval; messages are removed after retrieval in Delete mode.
In keep mode, mail is deleted before retrieval — False. Keep mode means messages are left on the server; they are not deleted before retrieval.
In keep mode, mail remains in mailbox after retrieval — True. Keep mode keeps a copy on the server so the message remains after the client retrieves it.
Conclusion: The correct set of true statements is the three true items above (the statements that describe the two modes, deletion after retrieval in Delete mode, and retention after retrieval in keep mode).
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