The answer is to use the nxos_mtu module instead of nxos_config to configure MTU. This is because the nxos_config module is a generic module designed to push raw NX-OS CLI commands line by line, but it does not natively parse or support the 'mtu' parameter as a dedicated key-value argument; attempting to set MTU directly within the module’s lines parameter will result in a "wrong module specific configuration" error. On the Cisco DCCOR 350-601 exam, this question tests your understanding of Ansible’s module specialization—each network function (like MTU, VLAN, or OSPF) has a purpose-built module that handles idempotency and syntax validation, whereas nxos_config is best reserved for one-off or unsupported commands. A common trap is assuming that because a command works in the CLI, it will work in any module; remember that Ansible modules are not CLI wrappers. Memory tip: "Config is for generic lines, MTU needs its own module—think 'MTU' as a dedicated 'U' (unit) that requires its own tool."
350-601 Automation Practice Question
This 350-601 practice question tests your understanding of automation. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
Refer to the exhibit. An engineer is using an Ansible playbook to configure a Nexus switch. The playbook task uses the nxos_config module to set an MTU value on an interface. What is the most likely issue?
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.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use the nxos_mtu module instead of nxos_config to configure MTU.
The nxos_config module is designed for general NX-OS configuration commands but does not support the 'mtu' parameter directly. The correct approach is to use the dedicated nxos_mtu module for setting MTU. Option B is incorrect because the parameter is correctly spelled; the module simply does not support it. Option C is incorrect because the switch does support MTU configuration via the appropriate module. Option D is incorrect because the provider parameter is not needed in modern Ansible versions.
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.
✗
Add the 'provider' parameter with connection details.
Why it's wrong here
The provider parameter is deprecated in modern Ansible and is not required for this error.
✗
Correct the spelling of the MTU parameter to 'mtu_size'.
Why it's wrong here
The error indicates 'mtu' is unsupported, not misspelled. 'mtu_size' is not a valid parameter in nxos_config.
✓
Use the nxos_mtu module instead of nxos_config to configure MTU.
Why this is correct
The nxos_config module does not support MTU; the nxos_mtu module is designed for this purpose.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Verify that the switch supports MTU configuration via Ansible.
Why it's wrong here
Nexus switches do support MTU configuration, but only through the nxos_mtu module.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 practitioner preparing for the 350-601 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which 350-601 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Automation — This question tests Automation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use the nxos_mtu module instead of nxos_config to configure MTU. — The nxos_config module is designed for general NX-OS configuration commands but does not support the 'mtu' parameter directly. The correct approach is to use the dedicated nxos_mtu module for setting MTU. Option B is incorrect because the parameter is correctly spelled; the module simply does not support it. Option C is incorrect because the switch does support MTU configuration via the appropriate module. Option D is incorrect because the provider parameter is not needed in modern Ansible versions.
What should I do if I get this 350-601 question wrong?
Identify which 350-601 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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?
Read the scenario before looking for a memorised answer.
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Question Discussion
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