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A network administrator is configuring a firewall to support file sharing among a group of Windows servers within a corporate network. Which port should the administrator ensure is open to allow for this service, assuming the default settings are used?
137
139
443
445
SMB (Server Message Block) protocol primarily utilizes TCP port 445 for file sharing services on modern networks particularly in Windows environments. Ensuring this port is open on the firewall is essential for the traffic related to accessing shared files, directories, and peripherals. Port 139 was used in earlier versions of SMB that employed NetBIOS over TCP/IP. Port 443 is used for HTTPS, which is secure web browsing and not related to internal file sharing. Port 137 is used for NetBIOS name service, which is different from file sharing functionality.
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