- A
NAT is configured without PAT; each inside host uses a unique global address.
The statistics show 0 extended translations, and the mapping lacks 'overload'. The translations show different inside global addresses for each inside local.
- B
PAT is enabled, but only two translations are active.
Why wrong: PAT would show extended translations (protocol/port) and the 'overload' keyword in the mapping.
- C
The pool is exhausted because two addresses are used.
Why wrong: The pool has 16 addresses; using 2 is not exhaustion.
- D
Static NAT is configured for both hosts.
Why wrong: The statistics show 0 static translations.
Question 1,699 of 2,152
Show IP NAT Translations
This 300-410 practice question tests your understanding of nat and pat. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
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 10.0.0.10 203.0.113.5 203.0.113.5 --- 192.0.2.11 10.0.0.11 203.0.113.5 203.0.113.5
R1# show ip nat statistics
Total active translations: 2 (0 static, 2 dynamic; 0 extended) Outside interfaces: GigabitEthernet0/1 Inside interfaces: GigabitEthernet0/0 Hits: 20 Misses: 0 CEF Translated packets: 20, CEF Punted packets: 0 Expired translations: 0 Dynamic mappings: -- Inside Source
[Id] ip nat pool POOL1 192.0.2.10 192.0.2.20 netmask 255.255.255.240
refcount 2 map-id 1
[Id] ip nat inside source list ACL1 pool POOL1
refcount 2
Based on this output, which statement is correct?
Quick Answer
The answer is that NAT is configured without PAT, as each inside host uses a unique global address. This is confirmed by the show ip nat translations output, which displays two separate inside global addresses (192.0.2.10 and 192.0.2.11) mapped one-to-one to their inside local counterparts, and the show ip nat statistics output shows zero extended translations, meaning no port address translation is occurring. On the Cisco CCNP ENARSI 300-410 exam, this scenario tests your ability to distinguish between basic NAT and PAT by reading command output; a common trap is assuming that any dynamic translation implies overload, but the absence of the overload keyword in the mapping and the presence of only simple translations (no protocol or port numbers) confirms basic NAT. Remember the memory tip: no ports, no overload—if you see only dashes under the Pro column and zero extended translations, you are looking at basic NAT, not PAT.
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
✓
NAT is configured without PAT; each inside host uses a unique global address.
The output shows two dynamic NAT translations, each with a unique inside global address (192.0.2.10 and 192.0.2.11) mapped to different inside local addresses (10.0.0.10 and 10.0.0.11). The absence of any port numbers in the 'Pro' column indicates that Port Address Translation (PAT) is not used; instead, each inside host receives a one-to-one mapping to a unique public IP from the pool. This confirms standard dynamic NAT without PAT.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
NAT is configured without PAT; each inside host uses a unique global address.
Why this is correct
The statistics show 0 extended translations, and the mapping lacks 'overload'. The translations show different inside global addresses for each inside local.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
PAT is enabled, but only two translations are active.
Why it's wrong here
PAT would show extended translations (protocol/port) and the 'overload' keyword in the mapping.
- ✗
The pool is exhausted because two addresses are used.
Why it's wrong here
The pool has 16 addresses; using 2 is not exhaustion.
- ✗
Static NAT is configured for both hosts.
Why it's wrong here
The statistics show 0 static translations.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between NAT and PAT by hiding port numbers in the 'Pro' column; candidates mistakenly assume PAT is active when they see multiple translations, but the absence of port numbers and the presence of unique global addresses clearly indicate standard dynamic NAT.
Trap categories for this question
Keyword trap
PAT would show extended translations (protocol/port) and the 'overload' keyword in the mapping.
Command / output trap
PAT would show extended translations (protocol/port) and the 'overload' keyword in the mapping.
Detailed technical explanation
How to think about this question
Dynamic NAT without PAT (also called basic NAT) allocates a unique public IP from a pool for each private-to-public translation, which is useful when a limited number of inside hosts need full bidirectional connectivity without port multiplexing. The pool size determines the maximum concurrent translations; once exhausted, additional hosts cannot translate until a mapping expires. In contrast, PAT (overloading) allows many inside hosts to share a single public IP by using unique source port numbers, as defined in RFC 2663.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
Visual reference
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
NAT and PAT — study guide chapter
Learn the concepts, then practise the questions
- →
NAT and PAT practice questions
Targeted practice on this topic area only
- →
All 300-410 questions
2,152 questions across all exam domains
- →
Cisco CCNP ENARSI 300-410 study guide
Full concept coverage aligned to exam objectives
- →
300-410 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related 300-410 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Layer 3 Technologies practice questions
Practise 300-410 questions linked to Layer 3 Technologies.
EIGRP Troubleshooting practice questions
Practise 300-410 questions linked to EIGRP Troubleshooting.
OSPF Troubleshooting (v2/v3) practice questions
Practise 300-410 questions linked to OSPF Troubleshooting (v2/v3).
BGP Troubleshooting practice questions
Practise 300-410 questions linked to BGP Troubleshooting.
Route Redistribution practice questions
Practise 300-410 questions linked to Route Redistribution.
Policy-Based Routing (PBR) practice questions
Practise 300-410 questions linked to Policy-Based Routing (PBR).
VRF-Lite practice questions
Practise 300-410 questions linked to VRF-Lite.
Route Maps and Route Filtering practice questions
Practise 300-410 questions linked to Route Maps and Route Filtering.
Administrative Distance practice questions
Practise 300-410 questions linked to Administrative Distance.
Route Summarization practice questions
Practise 300-410 questions linked to Route Summarization.
Bidirectional Forwarding Detection (BFD) practice questions
Practise 300-410 questions linked to Bidirectional Forwarding Detection (BFD).
VPN Technologies practice questions
Practise 300-410 questions linked to VPN Technologies.
Practice this exam
Start a free 300-410 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this 300-410 question test?
NAT and PAT — This question tests NAT and PAT — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: NAT is configured without PAT; each inside host uses a unique global address. — The output shows two dynamic NAT translations, each with a unique inside global address (192.0.2.10 and 192.0.2.11) mapped to different inside local addresses (10.0.0.10 and 10.0.0.11). The absence of any port numbers in the 'Pro' column indicates that Port Address Translation (PAT) is not used; instead, each inside host receives a one-to-one mapping to a unique public IP from the pool. This confirms standard dynamic NAT without PAT.
What should I do if I get this 300-410 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
More 300-410 practice questions
- Drag and drop the steps to negotiate an IKEv2 IPsec site-to-site tunnel into the correct order, from first to last.
- Drag and drop the steps to troubleshoot an IPsec site-to-site VPN adjacency failure into the correct order, from first t…
- Drag and drop the steps to verify and validate the operational state of an IPsec site-to-site VPN into the correct order…
- Consider the following configuration snippet: ip cef ! interface GigabitEthernet0/0 ip address 10.0.0.1 255.255.255.25…
- A router is configured with 'logging host 10.1.1.100' and 'logging trap informational'. The engineer notices that syslog…
- Drag and drop the steps to configure a GRE tunnel for IPv6 over IPv4 into the correct order, from first to last.
Last reviewed: Jul 4, 2026
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.