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NEW QUESTION # 62
An engineer is investigating a network congestion issue with an eBGP peer. Which two metrics are impacted by high congestion in an external network? (Choose two.)
Answer: A,E
Explanation:
High congestion in an external network primarily affects packet loss and latency, as queues build and packets drop. These metrics directly reflect congestion, while BGP reachability and convergence remain unaffected unless the session itself fails.
NEW QUESTION # 63
You want to create an endpoint label that automatically includes all Endpoint Agents connected to your corporate network. If your agents are named using the format agentname-network, what filter would you use in the hostname field to achieve this?
Answer: B
Explanation:
In theDesigning and Implementing Enterprise Network Assurance (300-445 ENNA)framework, managing a large-scale deployment of Endpoint Agents requires efficient categorization throughAgent Labels
. Agent labels are used to group agents for targeted test assignment and data filtering based on specific attributes like location, OS, or naming conventions.
ThousandEyes supports the use ofwildcards (specifically the * symbol)within label filters to allow for dynamic and scalable grouping. In this scenario, the organization has adopted a naming convention of agentname-network. To capture all agents connected to the "corporate" network regardless of the unique agentname prefix, the engineer should use the filter*-corporate(Option A) in the hostname or agent name field. The asterisk functions as a placeholder for any string of characters, ensuring that any agent ending with
"-corporate" is automatically added to the label as soon as it registers with the ThousandEyes platform.
Other options are incorrect for the following reasons:
* agentname-* (Option B):This would only match agents that literally start with the string "agentname-
", which is a placeholder and not a representative filter for a group of uniquely named agents.
* agent*corporate (Option C):This filter is overly broad and lacks the specific hyphen delimiter used in the organization's naming convention, potentially leading to the inclusion of unintended agents.
* No wildcard (Option D):Wildcards are a documented and essential feature of the ThousandEyes label system to facilitate automated management in enterprise environments.
By implementing wildcard-based labels, the network administrator ensures that new agents are seamlessly integrated into the assurance strategy without the need for manual manual intervention.
NEW QUESTION # 64
What Meraki platform supports ThousandEyes?
Answer: F
Explanation:
According to theDesigning and Implementing Enterprise Network Assurance (300-445 ENNA) curriculum, the native integration of ThousandEyes within the Meraki portfolio is specifically focused on the Meraki MXsecurity and SD-WAN appliances. This integration allows users to install ThousandEyes Enterprise Agents directly on supported Meraki MX hardware, providing critical visibility into the performance of services that distributed users rely on.4 TheMeraki MX (Option A)supports the ThousandEyes Enterprise Agent as a containerized service that can be activated with a single click within the Meraki Dashboard.5This integration is designed to provide better monitoring and testing capabilities for customers interested in improving the quality of their experience and adding the appropriate SD-WAN policies to optimize network performance. By running the agent natively on the MX, administrators can monitor the performance of external applications and services directly from the SD-WAN sites, bridging the gap between local branch health and global internet performance.6 While Cisco continues to expand its assurance integrations across the portfolio, theMR (Wireless),MS (Switching),MV (Camera), andMG (Cellular)series do not currently support the native, "on-box" execution of the ThousandEyes Enterprise Agent. For these other platforms, visibility is typically achieved through passive monitoring viaMeraki Insight (MI)or by deploying ThousandEyes agents on connected client devices (Endpoint Agents) or nearby infrastructure. Therefore, theMeraki MXis the only verified platform supporting native ThousandEyes agent deployment in this context.
NEW QUESTION # 65
SNMP data indicates that a wireless access point is experiencing high channel utilization and increased retransmissions. What optimization would you recommend to improve voice call quality for users on this access point?
Answer: A
Explanation:
In wireless network assurance, high channel utilization and increased retransmissions are clear indicators of RF interference or over-subscription. Retransmissions are particularly damaging to voice call quality because they introduce significant jitter and late-arrival packet loss that the jitter buffer cannot overcome.
The recommended optimization is tochange the access point to a different, less congested channel(Option B). This directly reduces the competition for airtime (Channel Utilization) and the likelihood of collisions from neighboring access points (Co-Channel Interference), which in turn lowers the retransmission rate.
Modern wireless controllers usingRadio Resource Management (RRM)often automate this, but a manual adjustment based on SNMP telemetry is a valid operational fix.
Other options are technically flawed:
* Option A:Increasing transmit power oftenincreasesinterference and channel utilization for surrounding cells, making the problem worse for everyone.
* Option C:Disabling all non-voice traffic is an extreme measure that is rarely feasible in a real business environment.
* Option D:Admission control limits thenumberof users but doesn't solve the underlying issue of poor channel health for those already connected.
NEW QUESTION # 66 
An engineer is trying to configure a Page Load test and is trying to assign the east1-agent-1 to run it, but cannot see that agent listed. What is the reason that the designated agent does not appear?
Answer: C
Explanation:
In the framework of Designing and Implementing Enterprise Network Assurance (300-445 ENNA) , selecting the appropriate agent for specific test types is a critical configuration step. The ThousandEyes platform utilizes different agent binaries and capabilities depending on the underlying hardware and software environment. Specifically, Page Load tests and Transaction tests require the agent to have a browser engine (Chromium) installed and functional to render web content and measure DOM-related metrics.
According to the ENNA implementation guidelines, not all Enterprise Agents support these browser-based tests. The exhibit displays a " New Test " configuration screen where the engineer is searching for " east1- agent-1 " . While other agents like " west-2-ag-1 " are visible, the designated agent is missing because it does not support Page load tests (Option D). This common occurrence happens when an Enterprise Agent is deployed on resource-constrained hardware-such as certain Cisco Catalyst 9000 switches or Cisco ISR
4000 series routers -where the Chromium browser package is either not supported or has not been enabled due to memory and CPU limitations.
When an agent lacks the required capabilities for a specific test layer (e.g., Web layer tests), it is automatically filtered out from the selection list in the ThousandEyes portal to prevent invalid test configurations. To identify compatible agents, an engineer can look for the " Browser " or " Dual Chromium " labels in the agent settings. If the " east1-agent-1 " were merely offline (Option A), disabled (Option B), or still registering (Option C), it would typically still appear in the list but with a status indicator showing its unavailability, rather than being entirely hidden from the test assignment menu. Therefore, the absence of the agent in a web- layer test configuration explicitly indicates a lack of functional support for the required browser-based metrics.
NEW QUESTION # 67
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