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NEW QUESTION # 23
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: A
Explanation:
In the Designing and Implementing Enterprise Network Assurance (300-445 ENNA) framework, managing a large-scale deployment of Endpoint Agents requires efficient categorization through Agent 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 of wildcards (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 # 24
A network administrator deployed a TLS decrypting proxy within an office site. Which metric includes TLS negotiation performance?
Answer: D
NEW QUESTION # 25
Exhibit:
An engineer works to optimize a website by reducing the page-load time to below 500 ms. The engineer set up a Cisco ThousandEyes page-load test to baseline the current website performance. Which action should be recommended to reduce page-load time?
Answer: B
Explanation:
In the context ofDesigning and Implementing Enterprise Network Assurance (300-445 ENNA), analyzing page-load metrics within Cisco ThousandEyes requires identifying the primary bottlenecks that contribute to theTotal Page Load Time. The provided screenshot displays a "Page Breakdown" of 7 resources totaling 953 kB. A critical observation of the pie chart reveals thatImages(the teal-colored segment) constitute the vast majority of the page's payload and resource count.
When the goal is to reduce the page-load time from1023 msto below500 ms, the engineer must target the heaviest components.Lazy loadingis a design pattern that defers the initialization of non-critical resources at page load time. Instead of loading all images simultaneously when the userfirst navigates to the URL, lazy loading ensures that images are only downloaded as they are about to enter the viewport. This significantly reduces the initial DOM load time and the total Page Load Time because the browser does not have to wait for large image files to be fully retrieved before declaring the page "loaded." Alternative options are less effective in this specific scenario based on the data:
* AJAX (XHR/Fetch):The chart shows that XHR and Fetch resources represent a negligible sliver of the total weight; optimizing them would yield minimal gains.
* Moving IMG elements:While moving scripts to the bottom can help with rendering, moving image elements to the bottom of the body does not stop the browser from initiating the download requests immediately, thus failing to significantly reduce the total load time.
* CDN for Fonts:The "Font" category is also a small fraction of the total 953 kB. While a CDN is a best practice for latency, it does not address the primary "weight" issue caused by the images.
Therefore, implementinglazy loading(Option C) is the most impactful recommendation. It directly addresses the largest resource consumer (Images) identified in the ThousandEyes Page Breakdown, allowing the engineer to reach the sub-500 ms performance target.
NEW QUESTION # 26
How does the integration between Cisco technologies streamline network management tasks?
Answer: C
Explanation:
Integration of Cisco technologies automates configuration workflows, simplifying network management tasks and improving efficiency.
NEW QUESTION # 27
What is the purpose of synthetic web tests in network assurance?
Answer: B
Explanation:
Synthetic web tests are used to simulate user interactions with web applications, allowing network administrators to proactively monitor and evaluate web application performance and responsiveness from various locations.
NEW QUESTION # 28
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