@mary said in Network Address Translation - CompTIA Network+ N10-007 Prof Messer:
Is there any kind of slowdown when using just one port if you are getting a lot of traffic?
No not really. The most commonly used ports are 80 and 443. They process quite a bit of traffic on your average workstation.
In fact, most servers are designed to work with a single port or just a handful of ports open. For custom applications using a specific port makes it easier to troubleshoot issues and restricts non application traffic. Many apps are defaulting to 443 these days. Although, keep in mind SSL /TLS can operate on other ports.