Exam-style question
Try this first
Explain the basic concept of Network Address Translation (NAT).
Model answer
What a good answer should say
- NAT is a process in which a network device translates IP address information between an internal network and an external network.
- For example, when a device with an internal address sends data externally, NAT can replace that internal source address with an external address before forwarding the data.
- The reply can then be translated back for the internal device.
Explanation
Why this works
A complete answer identifies translation between internal and external addresses and describes how this can occur when data leaves the internal network. Mentioning the reverse translation for a reply demonstrates the two-way nature of the basic process.
Common mistake
No common mistake is linked to this question yet.