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Network Address Translation (NAT)
Question 1
What is the main purpose of Network Address Translation (NAT) on a router?
Increase Wi‑Fi speed
Translate private IP addresses to public IP addresses and vice versa
Encrypt all internet traffic
Assign MAC addresses to devices
Question 2
Why does NAT also modify source port numbers (as in PAT)?
To reduce packet size
To change the transport protocol
To distinguish traffic from multiple internal hosts using the same public IP
To prevent DNS lookups
Question 3
Which NAT type is most commonly used in home and small office routers?
Static NAT
Dynamic NAT
Port Address Translation (PAT / NAT Overload)
Double NAT
Question 4
In NAT terminology, which address represents an internal host as seen from the outside network?
Inside global address
Inside local address
Outside local address
Outside global address
Question 5
Which of the following is a downside of using NAT?
It always exposes internal IPs to the internet
It prevents IPv4 address conservation
It can break applications that rely on end‑to‑end connectivity, such as some VoIP or gaming services
It makes packet routing impossible
There are 5 questions to complete.