Port 631 is assigned to which printing protocol by default?

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Multiple Choice

Port 631 is assigned to which printing protocol by default?

Explanation:
Port numbers map services to network endpoints, and the Internet Printing Protocol is assigned the default port 631. IPP is the standard for printing over a network and typically runs over TCP using HTTP as the transport, so printers and print servers that speak IPP listen on port 631 by default. Other printing methods use different ports: LPD usually uses 515, JetDirect-based printing commonly uses 9100, and Windows printer sharing over SMB uses 445 (or 139 in older setups). So port 631 is specifically the default for IPP.

Port numbers map services to network endpoints, and the Internet Printing Protocol is assigned the default port 631. IPP is the standard for printing over a network and typically runs over TCP using HTTP as the transport, so printers and print servers that speak IPP listen on port 631 by default. Other printing methods use different ports: LPD usually uses 515, JetDirect-based printing commonly uses 9100, and Windows printer sharing over SMB uses 445 (or 139 in older setups). So port 631 is specifically the default for IPP.

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