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Juniper JN0-253 Exam Syllabus Topics:

Topic	Details
Topic 1	Juniper Mist Configuration Basics: This domain addresses initial setup including user accounts, device onboarding, organizational structures, subscription licensing, certificate management, and automated provisioning with labels and policies.
Topic 2	Juniper Mist Cloud Operations: This domain covers three API types (RESTful, WebSocket, Webhook) for programmatic integration, plus support resources including ticketing systems and documentation.
Topic 3	Juniper Mist Monitoring and Analytics: This domain focuses on monitoring tools including service-level expectations, packet captures, AI-driven insights, automated alerts, and audit logs for comprehensive network visibility.

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Juniper Mist AI, Associate (JNCIA-MistAI) Sample Questions (Q151-Q156):

NEW QUESTION # 151
Which two statements are correct about Juniper Mist Wired Assurance? (Choose two.)

A. It only monitors wireless access points, not switches.
B. It requires a physical controller appliance.
C. It provides SLE metrics for switch health, including metrics such as Throughput and Switch CPU/Memory.
D. It can detect issues such as excessive CRC errors or interface flapping on switch ports.

Answer: C,D

Explanation:
Wired Assurance extends Mist's AI-driven SLE framework to switching infrastructure, providing metrics related to switch health (such as CPU/memory utilization) and port-level issues such as excessive CRC errors, interface flaps, and other physical layer problems, all without requiring a physical wired controller.

NEW QUESTION # 152
Referring to the exhibit, which two statements are correct? (Choose two.)

A. You will need to log in to Mist every 60 minutes as long as you are viewing this organization.
B. You will need to log in to Mist every 60 minutes regardless of which organization you are viewing.
C. To stay logged in, you will need to perform an action in Mist every 10 minutes regardless of which organization you are viewing.
D. To stay logged in, you will need to perform an action in Mist every 10 minutes as long as you are viewing this organization.

Answer: B,C

Explanation:
Session Timeout (60 minutes):
This timeout applies globally, meaning you will be logged out of Mist after 60 minutes of continuous session time, regardless of which organization you are working in.
Inactivity Timeout (10 minutes):
If there is no user activity for 10 minutes, you will be logged out automatically. This also applies globally, regardless of the organization being accessed.

NEW QUESTION # 153
Which statement is correct about Service Level Expectations (SLEs) in Juniper Mist?

A. SLEs are static thresholds manually configured by the administrator for every site.
B. SLEs only apply to wired switching, not wireless.
C. SLEs cannot be broken down into contributing classifiers.
D. SLEs measure and quantify the user experience across metrics such as Time to Connect, Throughput, and Coverage.

Answer: D

Explanation:
Service Level Expectations (SLEs) in Juniper Mist are AI-driven metrics that quantify the end-user network experience across dimensions such as Time to Connect, Successful Connects, Throughput, Roaming, and Coverage. Each SLE can be broken down into classifiers and sub- classifiers to help pinpoint the root cause of any degradation.

NEW QUESTION # 154
Which two statements describe SLEs? (Choose two.)

A. SLEs use data science to troubleshoot network issues on an ad hoc basis.
B. SLEs use machine learning to provide a proactive approach to understanding the end-user experience.
C. The metrics analyzed to meet specific SLE goals are categorized into classifiers.
D. SLEs display a detailed list of Wi-Fi clients who have connected to the network.

Answer: B,C

Explanation:
InJuniper Mist AI,Service Level Expectations (SLEs)form the foundation ofWireless AssuranceandWired Assurance. They provide adata-driven, proactive methodto measure and maintain the quality of user experience, going beyond traditional device-centric monitoring.
According to theJuniper Mist AI Operations GuideandWireless Assurance Documentation, SLEs:
"Leverage machine learning and data science to deliver a proactive understanding of end-user experience and identify root causes of performance issues." Each SLE (such asTime to Connect,Roaming,Throughput,Coverage, andCapacity) is composed of classifiers, which break down performance metrics into measurable, root-cause categories. Examples include DHCP,DNS,Authentication, andSignal Qualityclassifiers.
This classifier-based structure enables Mist AI to automatically correlate problems and highlight the most probable cause of degradation-eliminating the need for manual troubleshooting or reactive analysis.
OptionsBandDare incorrect because SLEs arenot ad hoc toolsfor manual troubleshooting and donot simply list connected clients. Instead, they provide intelligent, AI-driven insights into user experience across the network.
Therefore, the correct statements are:
* A. SLEs use machine learning to provide a proactive approach to understanding the end-user experience.
* C. The metrics analyzed to meet specific SLE goals are categorized into classifiers.
References:- Juniper Mist Wireless Assurance and SLE Overview- Juniper Mist AI Operations and Analytics Guide- Juniper Mist Cloud Monitoring and SLE Classifier Documentation

NEW QUESTION # 155
Which statement is correct about the relationship between Juniper Mist organizations and sites?

A. One Juniper Mist site can contain multiple organizations.
B. One Juniper Mist organization can contain multiple sites.
C. A Juniper Mist superuser login grants access to all organizations.
D. You must have one Juniper Mist superuser login for each site.

Answer: B

Explanation:
According to the official Juniper Mist documentation on the configuration hierarchy, the platform uses a three- tier model: Organization # Site # Device. At the organization level, you manage administrator accounts, subscriptions, and organization-wide settings. Then:
"An organization can include one or more sites. A site can represent a physical location or a logical subdivision of your enterprise or campus." Also, in the simpler case explanation:
"Each customer is created as a separate organization. Within that organization multiple sites can be created." Mist These statements make clear that the correct relationship is: one organization may have multiple sites under it.
The inverse - that a site might contain multiple organizations - is not supported in the documented hierarchy. Therefore option B is correct.

NEW QUESTION # 156
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