A client packet is received by a server. The packet has a destination port number of 110. What service is the client requesting?
- DNS
- DHCP
- POP3
- SMTP
| Explanation & Hint:
The client is requesting the POP3 (Post Office Protocol version 3) service. Port 110 is the standard port number for the POP3 protocol, which is used for retrieving emails from a mail server. |