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Cisco 300-445 Exam Overview:

Certification Vendor:Cisco
Exam Name:Designing and Implementing Enterprise Network Assurance
Exam Number:300-445
Exam Duration:90 minutes
Passing Score:750 (out of 1000)
Exam Price:$300 USD
Exam Format:Multiple-answer, Drag-and-drop, Multiple-choice, Fill-in-the-blank
Real Exam Qty:55-65
Certificate Validity Period:3 years
Related Certifications:Cisco Certified Specialist - Enterprise Network Assurance
CCNP Enterprise
Available Languages:English
Sample Questions:Cisco 300-445 Sample Questions
Exam Way:Pearson VUE (Online or Test Center)
Pre Condition:None
Official Syllabus URL:https://learningnetwork.cisco.com/s/300-445-exam-topics

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Cisco 300-445 Exam Syllabus Topics:

TopicDetails
Topic 1
  • 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 2
  • 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.
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
  • 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.

Cisco Designing and Implementing Enterprise Network Assurance Sample Questions (Q47-Q52):

NEW QUESTION # 47
What is the primary function of setting a metric baseline in network assurance?

Answer: A

Explanation:
The primary function of setting a metric baseline is to establish performance benchmarks for various network metrics, enabling the detection of deviations and abnormalities in network performance over time.


NEW QUESTION # 48
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 # 49
What is the primary purpose of synthetic web tests in network assurance?

Answer: C

Explanation:
The primary purpose of synthetic web tests is to simulate user interactions with web applications, facilitating performance monitoring and optimization in network assurance.


NEW QUESTION # 50
Which security issue affecting network performance can be identified using collected data in network assurance?

Answer: A

Explanation:
DDoS attacks are a security issue affecting network performance that can be identified using collected data in network assurance, enabling proactive threat mitigation.


NEW QUESTION # 51
A network engineer deploys a ThousandEyes Docker agent on a switch using app-hosting. 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: B

Explanation:
In the Designing and Implementing Enterprise Network Assurance (300-445 ENNA) implementation guide, the Cisco IOS XE Application Hosting lifecycle is a critical concept for troubleshooting and configuration management. When an application environment variable--such as proxy settings--is modified in the app-hosting configuration, a simple restart of the container is insufficient.
The correct procedure involves moving the application back to the Configured state before bringing it back to Running. This requires a four-step lifecycle execution (Option C):
Stop: Terminates the current running instance of the container.
Deactivate: Releases the hardware resources (CPU, Memory, Virtual Interfaces) and, crucially, detaches the previous runtime configuration.
Activate: Re-allocates the resources and injects the new configuration parameters (including the updated proxy settings) into the container's environment.
Start: Initiates the container with the newly applied configuration.


NEW QUESTION # 52
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