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| Section | Weight | Objectives |
|---|---|---|
| Data Collection Implementation | 25% | - Onboarding and discovery
|
| Platforms and Architecture | 20% | - Cisco network assurance solutions architecture
|
| Insights and Alerts | 25% | - Generate and interpret insights
|
| Data Analysis and Troubleshooting | 30% | - Troubleshoot common issues
|
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NEW QUESTION # 92
What is an important consideration when choosing a time period for collecting data to establish a baseline for interface utilization on a critical network link?
Answer: B
Explanation:
Establishing an accurate baseline is a cornerstone of theDesigning and Implementing Enterprise Network Assurance (300-445 ENNA)methodology. A baseline must represent the "typical" behavior of the network across its standard operating cycle to be useful for anomaly detection and capacity planning. When monitoring interface utilization on a critical link, it is vital tocapture both peak and off-peak traffic patterns (Option C).
Most enterprise networks exhibit cyclical traffic patterns, often referred to as "diurnal" cycles, where utilization spikes during business hours (peak) and drops significantly at night or on weekends (off-peak). If an engineer only collects data during the lowest volume period (Option A), the baseline will be unrealistically low, leading to "false positive" alerts when normal business traffic returns. Conversely, only capturing peak data might hide background synchronization tasks or backup windows that occur during off-hours.
By selecting a representative time period-typically one full week or a month-the engineer ensures the baseline accounts for variations such as Monday morning "logon storms," mid-week steady states, and weekend maintenance. This comprehensive view allows the assurance platform (such asCisco Catalyst CenterorThousandEyes) to calculate a standard deviation and establish dynamic thresholds. If utilization deviates from these historically representative norms, the system can trigger an alert based on a true anomaly rather than a predictable daily surge. Aligning with a financial year (Option B) is irrelevant to technical performance, and limiting the data (Option D) compromises the baseline's statistical validity.
NEW QUESTION # 93
How can collected data in network assurance be used to diagnose proxy server issues?
Answer: C
Explanation:
Collected data can be used to diagnose proxy server issues by detecting connection failures and analyzing proxy server performance in network assurance.
NEW QUESTION # 94
A network engineer deploys a ThousandEyes Docker agent on a switch using app-hosting.7 The agent needs to communicate through a proxy server, but this configuration was missed during the initial deployment. The engineer adds the proxy settings to the app-hosting configuration. What is the next step to ensure the agent uses the proxy and appears online in the ThousandEyes portal?
Answer: A
Explanation:
In theDesigning and Implementing Enterprise Network Assurance (300-445 ENNA)implementation guide, the Cisco IOS XEApplication Hostinglifecycle is a critical concept for troubleshooting and configuration management. When an application environment variable-such as proxy settings or account tokens-is modified in the app-hosting configuration, a simple restart of the container is insufficient to apply those changes.
The correct procedure involves moving the application back through its lifecycle states to ensure the new environment variables are injected. This requires executing the full agent lifecycle (Option C):Stop, Deactivate, Activate, and Start.
* Stop:Terminates the current running process of the container.
* Deactivate:Releases the allocated hardware resources (CPU, Memory) and, most importantly, clears the runtime environment.
* Activate:Re-allocates the resources andinjects the updated configuration parametersinto the container's environment variables.
* Start:Initiates the container with the newly applied configuration settings.
After the application is up and running, the ThousandEyes-agent process attempts to connect to the controller in the cloud environment. Without thedeactivate/activatesequence, the container continues to use the environment variables present at the time of its initial activation, causing the agent to remain offline as it fails to reach the ThousandEyes portal without the proxy.Reinstalling(Option B) would work but is an unnecessarily lengthy process, whileNo action(Option D) will result in no change to the agent's connectivity status.
NEW QUESTION # 95
Thousand23Eyes WAN Insights integrates with Cisco SD-WAN to provide visibility into network performance and generate path recommendations. Which two data sources from the SD-WAN environment are e25ssential for WAN Insights to function? (Choose two)
Answer: B,C
Explanation:
The architecture forDesigning and Implementing Enterprise Network Assurance (300-445 ENNA) specifies that ThousandEyes WAN Insights relies on deep integration with the Cisco SD-WAN management stack. To generate its predictive path recommendations, the platform must ingest specific telemetry data that reflects both the network's behavior and the applications traversing it.
The first essential data source ishistorical network performance metrics collected by vAnalytics(Option B). Before WAN Insights can be activated, vAnalytics must be enabled to collect and enrich raw network telemetry from the edge routers.34This data includes granular metrics for every SD-WAN tunnel, such as packet loss, latency, and jitter.35WAN Insights analyzes these historical trends to forecast future path quality and determine which transport circuits are most likely to meet application SLAs over a long-term period.
The second essential data source isapplication traffic flow data(Option D). WAN Insights must understand which applications are currently active in the fabric to prioritize recommendations for "business-critical" services like Office 365, Webex, or custom internal apps.38This information is ingested as flow records from the SD-WAN data plane and categorized based on theApplication Listsdefined inCisco Catalyst SD-WAN Manager (vManage).
Options A and E are configuration or logging data that, while useful for general management, are not the raw telemetry inputs used by the WAN Insights predictive engine. Option C is incorrect because WAN Insights explicitly uses infrastructure telemetry rather than ThousandEyes agent-based synthetic data for its SD-WAN fabric calculations. By combiningvAnalytics performance metricsandapplication flow data, WAN Insights can provide the "Predictive Path Recommendatio41ns" that are a hallmark of modern network assurance.
NEW QUESTION # 96
Which integration type enables seamless data exchange between Cisco technologies and external platforms?
Answer: A
Explanation:
REST API integration enables seamless data exchange between Cisco technologies and external platforms, fostering interoperability and data-driven decision-making in network assurance.
NEW QUESTION # 97
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