In email, which of the following mode(s) is/are included in the Post Office Protocol (POP)? I. Delete Mode II. Keep Mode
- A.Neither I nor II
- B.Only II
- C.Only I
- D.Both I and II
Correct answer
Explanation
The correct answer is D, Both I and II. The Post Office Protocol, best known in its third version POP3, lets a mail client download messages from a mail server, and it works in two modes. In the delete mode the message is removed from the server once it has been downloaded, which suits a person who always reads mail on the same computer. In the keep mode a copy stays on the server after downloading, so the same mail can be read again from another device. POP3 uses port 110, or port 995 when secured with SSL. Option A is wrong because both modes do exist in POP. Option B is wrong because keep mode is not the only one; delete mode is the default in many clients. Option C is wrong because delete mode is not the only one either. Exam tip: POP3 downloads mail and offers delete and keep modes, IMAP keeps mail on the server and syncs it across devices, and SMTP is the protocol that sends mail.
Practice Questions
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- A.Machine Language
- B.Assembly Language
- C.High-Level Language
- D.All of the above
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- A.JPEG
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- C.AVA
- D.PNG
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- B.Password Cracking
- C.Trojan Horse
- D.Firewall
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Read the full explanation →Which one of the following is not an application software?
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- B.AutoCAD
- C.MS PowerPoint
- D.Linker
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