easyMultiple Choice
300-410 Practice Question: Runs the following command on Router R1: R1# show…
A network engineer runs the following command on Router R1:
R1# show ip nat translations
Pro Inside global Inside local Outside local Outside global --- 192.0.2.10 10.0.0.10 --- ---
R1# show ip nat statistics
Total active translations: 1 (1 static, 0 dynamic; 0 extended) Outside interfaces: GigabitEthernet0/1 Inside interfaces: GigabitEthernet0/0 Hits: 5 Misses: 0 CEF Translated packets: 5, CEF Punted packets: 0 Expired translations: 0
Based on this output, which statement is correct?
⚠ Common exam trap
Cisco often tests the distinction between static NAT and dynamic NAT with overload (PAT) by showing a translation table without port numbers—candidates mistakenly assume PAT is in use because they see a global address, but the absence of protocol/port fields and the '1 static' count in statistics clearly indicate static NAT.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Static NAT is configured for host 10.0.0.10 to 192.0.2.10.
The output shows a single static NAT translation from inside local address 10.0.0.10 to inside global address 192.0.2.10. The 'show ip nat statistics' confirms '1 static' translation with no dynamic entries, and the NAT table lacks a port number, indicating a one-to-one static mapping rather than PAT. Therefore, static NAT is correctly configured for host 10.0.0.10 to 192.0.2.10.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Static NAT is configured for host 10.0.0.10 to 192.0.2.10.
Why this is correct
The statistics line reports 1 static and 0 dynamic translations, and the table shows a one-to-one mapping between inside local 10.0.0.10 and inside global 192.0.2.10 with no outside entries, which is the signature of static NAT.
- ✗
Dynamic NAT is configured with overload.
Why it's wrong here
The statistics line reads "1 static, 0 dynamic", and the translation table shows a one-to-one inside local to inside global mapping with no ports, so no overload or dynamic pool exists. It is tempting because dynamic NAT with overload is the common internet-edge design, but that would show dynamic counts and port entries.
- ✗
The NAT pool is exhausted.
Why it's wrong here
The pool cannot be exhausted: only one static translation exists, with zero dynamic entries and zero misses, so no pool allocation is occurring at all. It is tempting because pool exhaustion is a real failure mode when dynamic NAT runs out of addresses, which would instead show dynamic translations and increasing misses.
- ✗
PAT is translating multiple hosts to the same global address.
Why it's wrong here
PAT requires port information in the translation entries and multiple hosts sharing one global address; this output shows a single inside local 10.0.0.10 mapped one-to-one with no ports and zero extended translations. It is tempting because PAT is the usual method for sharing a public address across many internal hosts.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 300-410 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 300-410 exam.