FUNDAMENTALS OF COMPUTER

COMPUTER THREATS SECURITY

WHAT IS A FIREWALL IN NETWORK SECURITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
POP3 is on
A
25
B
110
C
220
D
143
Explanation: 

Detailed explanation-1: -POP3 works on the following two ports by default: port 110: default, non-encrypted port; and. port 995: should be used when the user needs to connect using POP3 securely.

Detailed explanation-2: -POP3 ports Port 110 is the default POP3 port and it is not encrypted. The encrypted port for POP3 is 995 and works over TLS/SSL.

Detailed explanation-3: -Port 110 is used by the POP3 protocol for unencrypted access to electronic mail. The port is intended for end-users to connect to a mail server to retrieve messages.

Detailed explanation-4: -Pop3 “post office protocol” is used by eMail clients for the retrieval of their eMail from designated eMail “post office” servers. Email Clients such as Microsoft Outlook, Netscape, Eudora, and many others, connect to port 110 of a remote eMail server, then use the pop3 protocol to retrieve their eMail.

Detailed explanation-5: -To configure the POP3 TCP/IP port Click the Ports > Internet Ports > Mail tab. Choose 110 (default) to use the industry standard port for POP3 connections over TCP/IP. You can specify a different port, but 110 works in most situations.

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