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Difficulty: EasyNetworking Ports and Protocols

A desktop technician is setting up a client application to download incoming email from an legacy mail server using unencrypted Post Office Protocol v3 (POP3). Which default port number should be configured in the client settings?

  1. Port 110Answer
  2. B
    Port 143
  3. C
    Port 995
  4. D
    Port 25

Answer

Port 110 is the default TCP port for unencrypted POP3 incoming email communication.
Port 110 is the default TCP port used by Post Office Protocol v3 (POP3) to download email messages from a mail server without encryption.

Step-by-Step Solution

1
Identify the protocol and communication direction required by the scenario
Unencrypted incoming mail retrieval using Post Office Protocol v3 (POP3)
The technician needs to connect to the mail server to download messages using unencrypted POP3.
2
Select the standard default port for unencrypted POP3
Port 110
Standard unencrypted POP3 traffic operates over TCP port 110.

Key Concept

Standard default TCP port assigned to unencrypted Post Office Protocol v3 (POP3) mail retrieval.
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Topics

Networking Ports and Protocols

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