The correct option is 445.

Port 445 is used by the Server Message Block protocol for direct hosted file sharing on modern Windows systems and verifying that TCP port 445 is reachable confirms SMB connectivity to the file share.

Running Test-NetConnection with the Port parameter set to 445 checks TCP connectivity and will show TcpTestSucceeded true when the SMB service is reachable and packets can traverse the network to the storage host.

3389 is incorrect because that port is reserved for Remote Desktop Protocol and it will not test SMB file share access.

8080 is incorrect because that port is commonly used for HTTP or web services and it does not correspond to SMB.

2222 is incorrect because it is commonly an alternative SSH port and it is not used for Windows file sharing.

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