Which port is used by the Windows SMB (Samba) service?

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Prepare for the CPSA Port Numbers exam with multiple choice questions and detailed explanations. Understand key protocols and services to excel in your test.

Multiple Choice

Which port is used by the Windows SMB (Samba) service?

Explanation:
SMB traffic over modern Windows and Samba implementations uses port 445, the direct SMB over TCP/IP port. This is the standard for file and printer sharing in current setups. Historically SMB could run over NetBIOS on ports 137–139, but today the direct TCP/IP path is on 445. That’s why the Windows SMB (Samba) service is associated with 445. The other ports correspond to different services: 22 is SSH, 111 is RPC/portmapper, and 514 is syslog.

SMB traffic over modern Windows and Samba implementations uses port 445, the direct SMB over TCP/IP port. This is the standard for file and printer sharing in current setups. Historically SMB could run over NetBIOS on ports 137–139, but today the direct TCP/IP path is on 445. That’s why the Windows SMB (Samba) service is associated with 445. The other ports correspond to different services: 22 is SSH, 111 is RPC/portmapper, and 514 is syslog.

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