Which port number is used by the Apple Filing Protocol (AFP)?

Which port number is used by the Apple Filing Protocol (AFP)?

• A. 179
• B. 67
• C. 548
• D. 9

Answer: (C)

AFP uses a specific TCP port to reach its file-sharing service, which is 548. This port is the designated channel for the Apple Filing Protocol over TCP, so clients connect to port 548 on the server to access Apple shares. AFP is a legacy protocol from Apple’s early networking days, still supported for compatibility, though many modern setups use other file-sharing methods like SMB. The other ports listed correspond to unrelated services (for example, 179 is BGP, 67 is DHCP server, and 9 is a discard service), so they don’t apply to AFP.

AFP uses a specific TCP port to reach its file-sharing service, which is 548. This port is the designated channel for the Apple Filing Protocol over TCP, so clients connect to port 548 on the server to access Apple shares. AFP is a legacy protocol from Apple’s early networking days, still supported for compatibility, though many modern setups use other file-sharing methods like SMB. The other ports listed correspond to unrelated services (for example, 179 is BGP, 67 is DHCP server, and 9 is a discard service), so they don’t apply to AFP.