POP email retrieval protocol – UGC NET Question

Post Office Protocol (POP), especially POP3, allows email clients to connect to a mail server, authenticate and download messages to the local machine. Once downloaded, messages may be removed from the server depending on configuration. This protocol is widely used in traditional email setups. Thus, the protocol described in the stem is POP.

Option A:
Option A, hypertext transfer protocol, is used for web browsing rather than for retrieving email from mail servers.

Option B:
Option B is correct because the full expansion Post Office Protocol directly matches the role of downloading messages to client computers as mentioned in the question. ICT syllabi frequently cite POP3 in this context.

Option C:
Option C, file transfer protocol, transfers files between computers but is not specialised for managing email messages.

Option D:
Option D, domain name system, translates domain names into IP addresses and has no function in pulling messages from mailboxes.