An employee is attempting to access company resources kept on a centralized server. The user has the right permissions but cannot seem to access the share via the network. As the IT technician, you confirm that the workstation is on the same network as the server and that both devices are operational. Which of the following protocols is MOST likely used for sharing files over a network between Windows-based systems, and its corresponding port should be checked for proper configuration on both the client's firewall and the server's firewall?
Server Message Block (SMB), also known by its older dialect name Common Internet File System (CIFS), is the standard protocol for native file sharing on Windows networks. SMB uses TCP port 445. For the network share to be accessible, this port must be open on firewalls between the client and server. FTP (ports 20 and 21) is a protocol for transferring files but is not the default for integrated Windows sharing. HTTPS (port 443) is used for secure web traffic, which might be used for web-based file access but not for a traditional network share. RDP (port 3389) is used for remote desktop connections, not direct file share access as described.
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