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A technician needs to configure a firewall to enable network printing. Which of the following network ports should be opened? (Select two).
Correct Answer: D,E
For network printing, the required ports are typically those used by printing protocols. Port 515 is used by the Line Printer Daemon (LPD) protocol, and port 631 is used by the Internet Printing Protocol (IPP). These ports need to be opened in the firewall to allow print jobs to be sent to and from network printers.