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NEW QUESTION # 40
What agent type is responsible for conducting synthetic user interactions with web applications?
Answer: D,E
Explanation:
Synthetic user agents and scripting agents are responsible for conducting synthetic user interactions with web applications in network assurance, facilitating performance monitoring and testing.
NEW QUESTION # 41
What type of data does ThousandEyes use to diagnose when integrated with Cisco Secure Client?
Answer: C
Explanation:
Under theDesigning and Implementing Enterprise Network Assurance (300-445 ENNA)guidelines, the integration between ThousandEyes andCisco Secure Client(formerly AnyConnect) is designed to provide visibility into the hybrid workforce experience. The integration primarily leveragesnetwork performance data from the user's device(Option C) to diagnose connectivity and application issues.
This data is collected by theThousandEyes Endpoint Agent, which is deployed as a module within the Cisco Secure Client.10The agent captures real-time telemetry from the user's laptop or workstation, includingWi-Fi signal strength,CPU and memory utilization, andlocal network gateway latency. Specifically, for remote users, it monitors the health of the VPN tunnel and the performance of applications as seen from the end- user's vantage point.
When a user reports a "slow application," this integrated telemetry allows IT teams to determine if the root cause is the user's home Wi-Fi, a saturated VPN concentrator, or an issue within the ISP underlay. The agent performsAutomated Session Testing (AST), which maps the network path as soon as a user joins a critical meeting or accesses a SaaS tool, providing a granular view of every hop between the device and the service destination. Unlike hardware configuration data (Option A) or behavioral analytics (Option B), the focus here is strictly on thenetwork performance metricsthat impact digital experience.
Therefore, the collection of device-centric network performance data is the core function of the Cisco Secure Client and ThousandEyes integration.
NEW QUESTION # 42
Refer to the exhibit.
A network engineer is tasked with configuring an alert that will trigger if the HTTP server responds with a server error. What alert conditions should be configured to meet the specified requirements?
Answer: A
Explanation:
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In theDesigning and Implement7ing Enterpr8ise Network Assurance (300-445 ENNA)framework, configuring effective alert rules is critical for distinguishing between standard network noise and actionable application-layer failures. ForWeb - HTTP Servertests, ThousandEyes allows engineers to monitor both network-level metrics (like Connect time) and application-level indicators (like HTTP response codes).
The requirement is to trigger an alert specifically when the HTTP server responds with aserver error. In the HTTP protocol, server errors are categorized as the5XXseries of status codes (e.g., 500 Internal Server Error,
503 Service Unavailable, 504 Gateway Timeout). To meet this requirement, the engineer must configure a location alert condition where theMetricis set toResponse Codeand the condition value isserver error(5XX) (Option D).
Reviewing the other options:
* Error type is any (Option A):While this would capture server errors, it would also trigger for 4XX client errors (like 404 Not Found) and network-layer timeouts, making it too broad for a specific "server error" requirement.
* Wait Time is Dynamic (Option B):This monitors the time-to-first-byte using statistical baselining.
While high wait times oftenprecede5XX errors, this condition only alerts on latency, not on the actual error code itself.
* Response Time (Option C):Similar to wait time, this monitors performance speed rather than the logical success or failure of the server's response.
By specifically selectingResponse Code: server error(5XX), the engineer ensures that the operations team is only notified when the application backend is experiencing a functional failure, rather than just a slow response or a client-side misconfiguration.
NEW QUESTION # 43
Which alert rule configuration impacts the end-user experience by monitoring browser behavior?
Answer: C
Explanation:
User experience alert rules impact the end-user experience by monitoring browser behavior, ensuring optimal performance and usability of web applications.
NEW QUESTION # 44
Carefully review the exhibits. Which detail indicates the network issue might be caused by a BGP Hijack?
Answer: D
Explanation:
In the Designing and Implementing Enterprise Network Assurance (300-445 ENNA) curriculum, identifying routing anomalies such as BGP Hijacking is a critical aspect of external network assurance. A BGP Hijack occurs when an Autonomous System (AS) illegitimately announces a prefix it does not own, causing traffic intended for the rightful owner to be misdirected.
By contrasting Exhibit 3.4-1 (Before the Outage) and Exhibit 3.4-2 (During the Outage), a definitive change in the routing path is observed. In the baseline view (Exhibit 3.4-1), traffic from the Los Angeles agent reaches the destination network 54.239.104.0/23, which is correctly associated with Amazon.com, Inc. (AS
16509) . However, during the outage (Exhibit 3.4-2), the path visualization shows the traffic being redirected into a different network: eNET Inc. (AS 10297) . At this new location, the traffic encounters 100% Forwarding Loss at the node ten7-8.core-2.xlhost.com.
The change in the Autonomous System (AS) number from 16509 to 10297 (Option B) is the most concrete indicator of a BGP Hijack. While symptoms such as Availability Drop (Option A), Response Delay (Option C), and Packet Loss (Option D) are clearly visible in the ThousandEyes telemetry, these symptoms are generic and could be caused by various other issues like physical link failures or congestion. The shift in the AS path-specifically to an AS that does not legitimately host the target ' s IP prefix-provides the forensic evidence needed to identify the root cause as a routing takeover. This visualization allows network administrators to bypass internal troubleshooting and immediately focus on external remediation with upstream providers.
NEW QUESTION # 45
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