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  1. Home
  2. Juniper Certification
  3. JN0-253 Exam
  4. Juniper.JN0-253.v2026-01-07.q63 Dumps
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Question 1

What does the icon in the lower-right corner of the exhibit do in the Mist UI?

Correct Answer: B
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Question 2

Which three categories of alert types are available in Juniper Mist? (Choose three.)

Correct Answer: C,D,E
Alerts represent network and device issues that are ongoing. Juniper Mist™ categorizes them as follows:
* Infrastructure Alerts-Repeated events involving servers and protocols that can potentially affect a large number of clients. For example, an event during which a Domain Name System (DNS), Dynamic Host Configuration Protocol (DHCP), or RADIUS server is unreachable can affect many clients.
Similarly, if a power supply on a switch is in alarm state, a large number of clients and a large amount of traffic could be affected.
* Marvis Alerts-Repeated events that Marvis tracks on the Marvis Actions dashboard. For example, if an access point (AP) regularly fails health checks, you'll see a Marvis alert for it.
* Security Alerts-Repeated events that could dramatically affect network security. For example, these alerts appear if a rogue AP is detected and clients start connecting to it.
* Certificate Alerts-Notification for expired, and soon-to-expire, user-added digital certificates. These include RadSec (configured at Organization > Settings > RadSec Certificates and AP RadSec certificate), SSO (configured at Organization > Settings > Single Sign-On), and PSK Portal IDP certificates (configured at Organization > Client Onboarding). Certificate alerts appear on the Alerts page and begin 30 days before the certificate's expiry date, then the notification repeats 15, 7, 3, and 1 day before expiration unless the certificate is renewed. .
https://www.juniper.net/documentation/us/en/software/mist/mist-aiops/topics/concept/alerts-overview.html
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Question 3

Which statement is correct about the SLE dashboard?

Correct Answer: C
In the SLE dashboard, Service Level Expectations (SLEs) are shown as a percentage of success to highlight how well the network is performing. On the other hand, classifiers are displayed as a percentage of failure to indicate areas where issues are occurring and need attention. This approach helps provide a clear understanding of both overall performance and problem areas.
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Question 4

Exhibit:

Referring to the exhibit, which two statements are correct about this client event? (Choose two.)

Correct Answer: B,C
In theJuniper Mist Cloud, theClient Eventssection within theMonitoringinterface displays detailed event logs for both wired and wireless clients, providing insights into connectivity, authentication, and performance- related activities. Each event entry may include associated diagnostic files such asdynamic packet captures (DPCs),traceroute data, andsyslogsdepending on the event type and device context.
According to theJuniper Mist AI Operations and Client Event Diagnostics Guide, the platform states:
"Wireless client events provide correlation between client connection attempts and associated diagnostic artifacts such as dynamic packet captures. These files are generated automatically during troubleshooting events and are attached to the event log for administrator review." From the exhibit, theclient is shown as a wireless device, indicated by theWi-Fi iconand theSSID association informationvisible in the event details. Additionally, the entry confirms that adynamic packet capture (DPC)file was automatically generated for the event, allowing engineers to download and inspect packet-level activity for root-cause analysis.
Therefore:
* B (It is a wireless client)is correct - the event pertains to a Wi-Fi-connected device.
* C (A dynamic packet capture file is included)is correct - the log includes a downloadable DPC file.
References:- Juniper Mist AI Operations and Client Event Diagnostics Guide- Juniper Mist Wireless Assurance Troubleshooting Documentation- Juniper Mist Cloud Monitoring and Analytics Overview
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Question 5

Which two statements about webhooks and APIs are correct? (Choose two.)

Correct Answer: A,B
In theJuniper Mist Cloud architecture, bothwebhooksandAPIsare key interfaces for automation, integration, and data exchange with third-party systems. While they both facilitate communication between Mist and external applications, they operate inopposite directionsand serve distinct purposes.
According to theJuniper Mist API and Webhook Developer Guide:
* Webhooksarepush-based notificationsinitiated by the Juniper Mist Cloud. When specific events occur (such as device disconnection, client onboarding, or alert generation), Mist sends structured JSON payloads to a preconfigured external URL endpoint.
* APIs(Application Programming Interfaces) arepull-based querieswhere an external client polls the Mist Cloud to retrieve or update data (e.g., inventory, configuration, or metrics).
Additionally, the Mist Cloud enforcesrate limitson API calls to ensure platform stability and fair usage:
"API rate limits are applied on a per-organization basis to prevent excessive polling and to maintain consistent performance." In contrast, webhooks do not have a strict hourly quota because they are event-triggered rather than continuous requests.
Therefore:
* Ais correct - Webhooks push, APIs pull.
* Bis correct - There is an hourly API rate limit per organization.
OptionsCandDare incorrect because webhooks are event-based (not rate-limited hourly) and do not configure Mist objects directly-they only send notifications.
References:- Juniper Mist API and Webhook Developer Documentation- Juniper Mist Cloud Automation and Integration Guide- Juniper Mist Platform Architecture Overview
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