200-901 Infrastructure and Automation Practice Question
This 200-901 practice question tests your understanding of infrastructure and 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.
Which TWO of the following are true about NETCONF capabilities as defined in RFC 6241?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The <edit-config> operation supports 'merge', 'replace', 'create', 'delete', and 'remove' operations.
Option A is correct because RFC 6241 defines the <edit-config> operation with the 'merge', 'replace', 'create', 'delete', and 'remove' operations. These allow granular modification of configuration data, with 'merge' being the default behavior if no operation attribute is specified.
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.
✓
The <edit-config> operation supports 'merge', 'replace', 'create', 'delete', and 'remove' operations.
Why this is correct
Correct – these are the standard operations defined in RFC 6241.
Related concept
Read the scenario before looking for a memorised answer.
✗
The <edit-config> operation replaces the entire configuration by default.
Why it's wrong here
Default operation is merge, not replace.
✓
The <candidate> configuration datastore is optional and requires the :candidate capability.
Why this is correct
Correct – candidate is optional and indicated by capability.
Related concept
Read the scenario before looking for a memorised answer.
✗
The :rollback-on-error capability is mandatory.
Why it's wrong here
Rollback-on-error is optional.
✗
The <running> configuration datastore is optional.
Why it's wrong here
The running datastore is mandatory per NETCONF.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between mandatory and optional capabilities, and the default operation of <edit-config>, to catch candidates who confuse 'merge' with 'replace' or assume all datastores are optional.
Detailed technical explanation
How to think about this question
NETCONF capabilities are advertised in the <hello> message using XML namespace URIs (e.g., 'urn:ietf:params:netconf:capability:candidate:1.0'). The <candidate> datastore allows building and validating a configuration before committing it, which is optional and requires the :candidate capability. The <running> datastore, by contrast, is always present and represents the currently active configuration.
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 practitioner preparing for the 200-901 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 exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Infrastructure and Automation — This question tests Infrastructure and Automation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The <edit-config> operation supports 'merge', 'replace', 'create', 'delete', and 'remove' operations. — Option A is correct because RFC 6241 defines the <edit-config> operation with the 'merge', 'replace', 'create', 'delete', and 'remove' operations. These allow granular modification of configuration data, with 'merge' being the default behavior if no operation attribute is specified.
What should I do if I get this 200-901 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.
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Question Discussion
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