Exam-style question
Try this first
Which example is most likely to require port forwarding?.
- A.Making a server inside a private network available to users outside that network
- B.Changing the colour of a program's interface
- C.Sorting names into alphabetical order in a program
- D.Printing a document to a printer already selected by the user
Model answer
What a good answer should say
- Making an internal server available to external users is an example of a reason for using port forwarding.
Explanation
Why this works
Port forwarding is relevant when an internal service needs to receive connections originating outside its network. The other examples do not involve directing incoming network traffic to an internal service.
Common mistake
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