Which of these port numbers would be most associated with Mac OS file services?
A) tcp/445
B) udp/138
C) tcp/3389
D) tcp/20
E) tcp/548
F) I’ll just use whatever port happens to be closest
The answer: E) tcp/548
Port 548 over TCP is used for file services in Mac OS. Port 427 over both TCP and UDP is used for SLP (Service Location Protocol) to populate a list of available devices.
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Want to know more? Watch “Common TCP and UDP Ports.”We use transport-layer protocols to communicate to specific services on a remote device. In this video, you’ll learn about some of the most popular TCP and UDP ports used on our servers. |
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