The answer is analyzing historical network trends for capacity planning, along with proactively detecting client connectivity issues and monitoring application performance against service-level agreements. These three use cases are valid because Cisco DNA Center Assurance APIs leverage streaming telemetry and machine learning to transform raw network data into actionable insights, enabling engineers to predict capacity bottlenecks, identify authentication or DHCP failures before users notice, and verify that latency or jitter stays within policy thresholds. On the DevNet Associate 200-901 exam, this topic tests your understanding of how Assurance APIs differ from traditional SNMP-based monitoring—focusing on intent-based analytics rather than reactive troubleshooting. A common trap is confusing Assurance APIs with Command Runner or Inventory APIs, which handle configuration and device discovery, not telemetry-driven analysis. Remember the mnemonic “CAP” for Capacity planning, Application SLAs, and Proactive client issue detection to keep the three valid reasons straight.
200-901 Cisco Platforms and Development Practice Question
This 200-901 practice question tests your understanding of cisco platforms and development. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 THREE are valid reasons to use Cisco DNA Center's Assurance APIs in an enterprise network?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Proactively detect client connectivity issues.
Option B is correct because Cisco DNA Center's Assurance APIs provide proactive monitoring and analytics that can detect client connectivity issues before they impact users, leveraging telemetry data from network devices to identify problems like authentication failures, DHCP timeouts, or signal degradation.
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.
✗
Automatically enforce QoS policies on switches.
Why it's wrong here
Assurance is for monitoring, not enforcement.
✓
Proactively detect client connectivity issues.
Why this is correct
Assurance provides client health scores and alerts.
Related concept
Read the scenario before looking for a memorised answer.
✗
Collect NetFlow data from all network devices.
Why it's wrong here
Assurance uses multiple data sources, not just NetFlow.
✓
Identify application performance bottlenecks.
Why this is correct
Assurance monitors application performance.
Related concept
Read the scenario before looking for a memorised answer.
✓
Analyze historical network trends for capacity planning.
Why this is correct
Assurance provides historical analytics.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between Assurance (monitoring/analytics) and Automation (configuration/policy enforcement) APIs, leading candidates to mistakenly associate QoS enforcement or NetFlow collection with Assurance when those belong to separate functional domains.
Detailed technical explanation
How to think about this question
Cisco DNA Center's Assurance APIs use a combination of streaming telemetry (e.g., NETCONF/YANG, gRPC) and contextual data from devices to build a real-time health score for clients and applications. Under the hood, these APIs query the Assurance data lake, which stores historical and real-time metrics like client RSSI, packet loss, and application response times, enabling trend analysis for capacity planning without requiring direct device polling.
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.
Cisco Platforms and Development — This question tests Cisco Platforms and Development — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Proactively detect client connectivity issues. — Option B is correct because Cisco DNA Center's Assurance APIs provide proactive monitoring and analytics that can detect client connectivity issues before they impact users, leveraging telemetry data from network devices to identify problems like authentication failures, DHCP timeouts, or signal degradation.
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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