[&] What field(s) within the IPv4 header can NAT change? (Select the best answer)
- None of these answers are correct
- Source TCP/UDP port number
- Destination IP address
- Source IP address
- All of these answers are correct

[&] What is the most common use-case for NAT? (Select the best answer)
- To translate ToS values into DSCP values
- To translate from private destination IP addresses into public destination IP addresses
- To translate from ephemeral port numbers to well-known port numbers
- To translate from private source IP addresses into public source IP addresses

[&] A laptop has an IP address of 10.1.1.1.  It transmits a packet destined for an Internet host and as its packets traverse a NAT router that source address is translated to 178.12.12.12. From a NAT perspective, what is the term we give to the original address of 10.1.1.1? (Select the best answer)
- The Outside Global address
- The Inside Global address
- The Outside Local address
- The Inside Local address

[&] In order for a packet to be translated by NAT, which of the following is NOT a requirement? (Select the best answer)
- The pre-translated packet must be routed to an interface configured as "nat outside"
- The packet must have been sourced from a network known to the IP Routing Table
- The pre-translated packet must arrive on an interface configured as "nat inside"
- The packet must match a configured NAT translation rule
- The packet must be destined to a network known to the IP Routing Table

[&] A laptop believes that the DNS server it uses has the IP address of 10.2.2.2. It transmits a packet destined for that DNS server and, as its packets traverse a NAT router, the destination address is translated to 8.8.8.8. From a NAT perspective, what is the term we give to the DNS's server's perceived address of 10.2.2.2? (Select the best answer)
- The Inside Local address
- The Outside Global address
- The Inside Global address
- The Outside Local address

[&] A laptop has an IP address of 10.1.1.1.  It transmits a packet destined for an Internet host and as its packets traverse a NAT router that source address is translated to 178.12.12.12. From a NAT perspective, what is the term we give to the translated address of 178.12.12.12? (Select the best answer)
- The Outside Local address
- The Outside Global address
- The Inside Local address
- The Inside Global address