NAT and PAT questions cover static NAT (one-to-one), dynamic NAT (pool-based), and PAT/overload (many-to-one using port numbers). The CCNA asks you to read NAT table output, fix misconfigured NAT, and match the right NAT type to a scenario.
Start Scenario PracticeA network engineer runs the following command on Router R7: R7# show ip nat translations verbose Pro Inside global Inside local Outside local Outside global --- 192.0.2.10 10.0.0.10 --- --- create: 03/01/2025 09:00:00, use: 03/01/2025 09:05:00 timeout: never, flags: static --- 192.0.2.11 10.0.0.11 --- --- create: 03/01/2025 09:00:00, use: 03/01/2025 09:06:00 timeout: never, flags: static Based on this output, what can be concluded?
Explanation: The output shows two NAT entries with the flag 'static' and a timeout of 'never'. Static NAT translations are manually configured and persist indefinitely in the translation table until explicitly removed by an administrator. This is why option D is correct.
Drag and drop the steps of VRF-aware NAT configuration steps into the correct order, from first to last.
Explanation: The correct order first defines the VRF, then configures the NAT inside and outside interfaces under the VRF, defines the NAT pool or ACL for translation, applies the NAT rule referencing the VRF, and finally verifies the translation with show ip nat translations vrf.
Which two statements about NAT configuration on Cisco IOS-XE are true? (Choose two.)
Explanation: NAT overload (PAT) translates multiple inside local addresses to a single inside global address using port numbers. The ip nat inside source list command with the overload keyword enables this. The ip nat inside source static command creates a one-to-one mapping, not many-to-one. Dynamic NAT without overload uses a pool of global addresses one-to-one. The ip nat outside command is applied to the external interface, not inside. NAT can translate source addresses for traffic leaving the inside network.
A network engineer runs the following command on Router R9: R9# show ip nat translations Pro Inside global Inside local Outside local Outside global udp 192.0.2.20:1234 10.0.0.20:1234 203.0.113.1:53 203.0.113.1:53 tcp 192.0.2.20:5678 10.0.0.20:5678 198.51.100.1:80 198.51.100.1:80 --- 192.0.2.21 10.0.0.21 --- --- Based on this output, what can be concluded?
Explanation: The output shows two types of NAT entries: a dynamic PAT entry for UDP (192.0.2.20:1234) and TCP (192.0.2.20:5678), and a static one-to-one translation for 192.0.2.21 to 10.0.0.21 (indicated by '---' in the protocol and port fields). This combination of dynamic PAT and static NAT on the same router confirms that both static NAT and PAT are being used simultaneously.
Drag and drop the steps of configuring Dynamic NAT on a Cisco IOS router into the correct order, from first to last.
Explanation: Dynamic NAT configuration starts by defining the pool of global IP addresses using 'ip nat pool'. Next, an access list is created to identify the inside local addresses that will be translated. The NAT source list is then configured to associate the ACL with the pool. After that, the inside and outside interfaces are designated with 'ip nat inside' and 'ip nat outside'. Finally, translation is verified with 'show ip nat translations'.
NAT and PAT questions cover static NAT (one-to-one), dynamic NAT (pool-based), and PAT/overload (many-to-one using port numbers). The CCNA asks you to read NAT table output, fix misconfigured NAT, and match the right NAT type to a scenario. These appear throughout the 350-401 and require you to apply your knowledge, not just recall facts.
Cisco doesn't publish an exact breakdown, but scenario-based questions (especially exhibit and command-output formats) make up a significant portion of the 350-401. Practicing each scenario type ensures you're ready for any format.
Yes. Courseiva provides free 350-401 scenario practice across all official exam domains. The platform includes scenario-based questions, command-output interpretation, topic-based practice, mock exams, and readiness tracking — no account required.
Launch a full NAT and PAT Configuration Scenarios session with instant scoring and detailed explanations.
Start Scenario Practice →