Question 2,014 of 2,015

Python for Network Automation →mediumMultiple ChoiceObjective-mapped

Quick Answer

The answer is an incorrect URL path in the RESTCONF request, specifically including 'native' after the module namespace. The correct path should be '/restconf/data/Cisco-IOS-XE-native:hostname' because the YANG module name 'Cisco-IOS-XE-native' already defines the top-level container, and 'hostname' is a direct child leaf within that module—not nested under an additional 'native' container. This tests your understanding of RESTCONF URL construction and YANG data model hierarchy, a common pitfall on the ENCOR 350-401 exam where candidates mistakenly add extra path segments. The 404 error is a classic sign of a malformed URI, not an authentication or service issue, so always verify the module:leaf syntax matches the YANG tree. Memory tip: think of the colon as the module’s “namespace divider”—everything after it is the exact leaf or container name, with no extra folder-like segments.

CCNP Python for Network Automation Practice Question

This 350-401 practice question tests your understanding of python for network automation. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 junior engineer is tasked with writing a Python script that uses the Cisco IOS-XE RESTCONF API to retrieve the hostname of a router. The engineer uses the requests library and sends a GET request to the URL 'https://router/restconf/data/Cisco-IOS-XE-native:native/hostname'. The request returns a 404 Not Found error. The engineer has verified that the RESTCONF service is enabled and the credentials are correct. What is the most likely reason for the 404 error?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

Question 1mediummultiple choice

Study the full Python automation breakdown →

A
The hostname data node does not exist in the YANG model.
Why wrong: Incorrect because the hostname is a standard data node in the Cisco-IOS-XE-native model.
B
The engineer forgot to include the 'Accept: application/yang-data+json' header in the request.
Why wrong: Incorrect because while the Accept header is recommended, its absence does not cause a 404; it may cause a 406 or the server may still respond.
C
The URL path should be '/restconf/data/Cisco-IOS-XE-native:hostname' instead of including 'native' in the path.
Correct because the YANG module name is 'Cisco-IOS-XE-native', and the top-level node is 'hostname', so the path should be '/restconf/data/Cisco-IOS-XE-native:hostname'.
D
The engineer must use a different HTTP method like POST to retrieve the hostname.
Why wrong: Incorrect because GET is the correct method to retrieve data.

Full breakdown with real-world context →

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

✓

The URL path should be '/restconf/data/Cisco-IOS-XE-native:hostname' instead of including 'native' in the path.

The correct answer is that the URL path is incorrect; the correct path should include the module namespace correctly. Option A is incorrect because the hostname is a valid data node. Option B is incorrect because the Content-Type header is not required for GET requests. Option D is incorrect because the error is not related to authentication.

Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
The hostname data node does not exist in the YANG model.
Why it's wrong here
Incorrect because the hostname is a standard data node in the Cisco-IOS-XE-native model.
✗
The engineer forgot to include the 'Accept: application/yang-data+json' header in the request.
Why it's wrong here
Incorrect because while the Accept header is recommended, its absence does not cause a 404; it may cause a 406 or the server may still respond.
✓
The URL path should be '/restconf/data/Cisco-IOS-XE-native:hostname' instead of including 'native' in the path.
Why this is correct
Correct because the YANG module name is 'Cisco-IOS-XE-native', and the top-level node is 'hostname', so the path should be '/restconf/data/Cisco-IOS-XE-native:hostname'.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
The engineer must use a different HTTP method like POST to retrieve the hostname.
Why it's wrong here
Incorrect because GET is the correct method to retrieve data.

Common exam traps

Common exam trap: NAT rules depend on direction and matching traffic

NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.

Detailed technical explanation

How to think about this question

NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.

KKey Concepts to Remember

Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.

TExam Day Tips

Identify inside and outside interfaces first.
Check whether the scenario needs static NAT, dynamic NAT or PAT.
Do not confuse NAT matching ACLs with normal packet-filtering intent.

Key takeaway

NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.

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.

What to study next

Got this wrong? Here's your next step.

Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 350-401 NAT questions on configuration and troubleshooting.

Related 350-401 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

Architecture practice questions

Practise 350-401 questions linked to Architecture.

Enterprise Network Design practice questions

Practise 350-401 questions linked to Enterprise Network Design.

SD-Access Architecture practice questions

Practise 350-401 questions linked to SD-Access Architecture.

SD-WAN Architecture practice questions

Practise 350-401 questions linked to SD-WAN Architecture.

QoS Architecture practice questions

Practise 350-401 questions linked to QoS Architecture.

Virtualization practice questions

Practise 350-401 questions linked to Virtualization.

Network Function Virtualization practice questions

Practise 350-401 questions linked to Network Function Virtualization.

Virtual Machines and Hypervisors practice questions

Practise 350-401 questions linked to Virtual Machines and Hypervisors.

VRF and Path Isolation practice questions

Practise 350-401 questions linked to VRF and Path Isolation.

Infrastructure practice questions

Practise 350-401 questions linked to Infrastructure.

OSPF practice questions

Practise 350-401 questions linked to OSPF.

BGP practice questions

Practise 350-401 questions linked to BGP.

Practice this exam

Start a free 350-401 practice session

Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.

10 questions 20 questions 30 questions 50 questions Timed 30

350-401 practice-test guide →Study guide →Browse all practice tests

FAQ

Questions learners often ask

What does this 350-401 question test?

Python for Network Automation — This question tests Python for Network Automation — Static NAT maps one inside address to one outside address..

What is the correct answer to this question?

The correct answer is: The URL path should be '/restconf/data/Cisco-IOS-XE-native:hostname' instead of including 'native' in the path. — The correct answer is that the URL path is incorrect; the correct path should include the module namespace correctly. Option A is incorrect because the hostname is a valid data node. Option B is incorrect because the Content-Type header is not required for GET requests. Option D is incorrect because the error is not related to authentication.

What should I do if I get this 350-401 question wrong?

Are there clue words in this question I should notice?

Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

What is the key concept behind this question?

Static NAT maps one inside address to one outside address.

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 →

How Courseiva writes practice questions · Editorial policy

Keep practising

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.

Loading comments…

This 350-401 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 350-401 exam.