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Cisco 300-445 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Platforms and Architecture: This domain covers understanding monitoring agent types and placement, active versus passive monitoring, and ThousandEyes WAN Insights. It addresses Cisco platform integrations, metric baselines, and selecting appropriate integration methods and assurance platforms based on business requirements.
Topic 2
  • Data Collection Implementation: This domain focuses on deploying enterprise and endpoint agents across infrastructure and end-user devices. It covers configuring network, DNS, voice, web, and endpoint tests using ThousandEyes and Meraki Insights, along with implementing synthetic web tests and authentication methods.
Topic 3
  • Insights and Alerts: This domain addresses configuring alert rules based on network conditions and end-user experience factors. It covers selecting metrics for stakeholders, validating alerts, and recommending network optimization for capacity planning.
Topic 4
  • Data Analysis: This domain encompasses diagnosing network issues like packet loss, congestion, routing, and jitter, plus end-device problems. It includes analyzing web application performance and identifying security threats such as DDoS attacks, DNS hijacking, and BGP hijacking.

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Cisco Designing and Implementing Enterprise Network Assurance Sample Questions (Q110-Q115):

NEW QUESTION # 110
A network monitoring engineer is tasked with creating a widget that displays the average packet loss from an agent installed as a Linux package. What is the data source and measure that should be selected?

Answer: C

Explanation:
InDesigning and Implementing Enterprise Network Assurance (300-445 ENNA), dashboard widgets must be mapped to the correct telemetry data source and statistical measure. When an agent is installed as aLinux packageon an organization's infrastructure, it is classified as anEnterprise Agent.
The correct configuration for this widget isCloud & Enterprise Agents and Mean(Option B).
* Data Source:Since the Linux-based agent is an Enterprise Agent, it shares the same data source category as Cloud Agents in the ThousandEyes dashboard configuration menu.
* Measure:To display the "average" packet loss as requested, theMean(the arithmetic average) is the appropriate statistical measure.
Other options are unsuitable:
* Option A:Endpoint Agentsare those installed on Windows/macOS user devices, not typically a standard Linux server package used for infrastructure monitoring.Medianwould show the middle value, not the average.
* Option C:Routingrefers to BGP data, which does not report packet loss in the same way as synthetic network tests.
* Option D:Devicesrefers to hardware monitored via SNMP, and annth Percentileis a specific statistical cutoff (like 95th percentile) rather than a simple average.


NEW QUESTION # 111
In the IT operations dashboard, what is the alert trigger reason?

Answer: B

Explanation:
Detailed Explanation:
The IT Operations Dashboard includes a section at the beginning that explicitly displays active alert rules and their status. According to the dashboard configuration, the reason for the current alert trigger is Network packet loss. This indicates that the underlying network path for the application is experiencing packet drops exceeding the defined threshold, even if the application layer remains partially functional.


NEW QUESTION # 112
Refer to the exhibit. Cisco ThousandEyes sent an alert that an application is unreachable from the Ljubljana office. What is the root cause of the issue?

Answer: A

Explanation:
The path visualization shows red nodes at 10.40.225.2 and 10.40.225.3, indicating significant forwarding loss at these intermediate devices. The loss is not end-to-end; it is localized at these routers, causing traffic from Ljubljana to fail before reaching downstream paths.


NEW QUESTION # 113
A network engineer is investigating widespread reports of poor performance for a data center-hosted web application. Which ThousandEyes agent type would be most effective for quickly identifying the root cause?

Answer: A

Explanation:
According to the Designing and Implementing Enterprise Network Assurance (300-445 ENNA) guidelines, troubleshooting widespread performance issues for a public or data center-hosted app 17 lication requires an " outside-in " perspective. When reports are widespread, 18 the goal is to determine if the issue is global, regional, or specific to certain ISP paths leading to the data center.
The Cloud Agent (Option D) is the most effective tool for this task because these agents are maintained by Cisco ThousandEyes in over 240+ locations worldwide within Tier 1, 2, and 3 ISPs and cloud provider regions. 19 Because they are pre-deployed and immediately available , a network engineer can instantly run tests from multiple global locations toward the data center-hosted application without having to install any software or manage any infrastructure. This allows the engineer to quickly compare performance metrics (latency, loss, and page load times) across different geographies. If Cloud Agents in London report no issues while those in New York report high packet loss, the engineer can immediately pinpoint the root cause as a regional ISP or peering issue rather than a failure within the data center itself.
* Enterprise Agent (Option B): While these could be used if they were already installed in various branch offices, they require ownership of the infrastructure and deployment time. They are better suited for " inside-out " monitoring.
* Endpoint Agent (Option C): These are useful for troubleshooting individual user experience but are not the " quickest " way to baseline global performance against a data center application during a widespread event.
* Synthetic Agent (Option A): As noted previously, this is a generic term describing the underlying technology used by all ThousandEyes agent types.
Therefore, Cloud Agents provide the necessary breadth and immediate availability to perform rapid root cause analysis for widespread application performance issues.


NEW QUESTION # 114
What type of network issue can cause intermittent connectivity problems for end devices?

Answer: D

Explanation:
Routing errors can cause intermittent connectivity problems for end devices by disrupting the flow of network traffic between different network segments.


NEW QUESTION # 115
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