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OSI Model and its Layers - 2
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Which of the following application layer protocols can be used for downloading an email from a mailbox server to a user-level mail client?
Fourth-generation firewalls operate up to layer 4 (transport layer) of the OSI model.
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A
IMAP
💡 Explanation:
The Internet Message Access Protocol (commonly known as IMAP) is an application layer internet protocol that allows an e-mail client to access e-mail on a remote mail server.