JN0-253 Exam Dumps - Mist AI - Associate (JNCIA-MistAI)

Thesession policy settingsin theJuniper Mist Clouddefine how long a user session remains active and how the system manages session expirations due to inactivity. These configurations help ensure bothsecurityandefficient resource managementacross the Mist Cloud portal and API sessions.

According to theJuniper Mist Cloud Administration and Security Configuration Guide:

“Session policy defines session timeout and inactivity timeout parameters, controlling how long users can remain logged into the Mist Cloud portal or API before re-authentication is required.”

Session Timeout:Specifies the maximum duration a session can remain active, regardless of activity.

Inactivity Timeout:Defines how long a session can remain idle before automatic logout.

These policies help maintain strong access security by reducing the risk of unauthorized access through stale sessions.

Other options such as password complexity (A, C) and two-factor authentication (D) are configured underauthentication and access policies, not session policies.

Therefore, the correct answer isB. The duration for session timeout and inactivity timeout.

Alerts represent network and device issues that are ongoing. Juniper Mistâ„¢ 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

The appropriate solution is Juniper Mist Asset Visibility (option C). Asset Visibility is a cloud service that leverages Juniper Mist Access Points and virtual Bluetooth Low Energy (vBLE) technology to track, locate, and display all network devices—including both Juniper and non-Juniper hardware—within the Mist GUI. According to the official Juniper documentation: “Juniper Mist Asset Visibility unites Wi-Fi connectivity, indoor location services for asset tracking, and IoT visibility in a single cloud platform. By combining vBLE with the Mist Cloud, organizations can use the same infrastructure—even when wired switches are from different vendors—for locating, tracking, and analyzing their most valuable assets and network devices.”

This capability is independent of switch manufacturer and provides comprehensive visualization of wireless APs and connected wired devices, ensuring a true single-pane-of-glass management experience. Wired Assurance, Marvis Actions, and LLDP-enabled Wi-Fi Management may provide visibility and proactive troubleshooting, but only Asset Visibility guarantees display and tracking of all assets—Juniper and non-Juniper—in the Mist GUI.

In theJuniper Mist Cloud platform, user roles define the scope of permissions that determine what administrative functions an individual can perform within an organization. TheSuper Userrole represents thehighest level of administrative authoritywithin a Juniper Mist organization and carries full control over both organization-wide and site-specific configurations.

According to theJuniper Mist Cloud Administration and User Management documentation, the Super User role is described as:

“The Super User role provides full read and write access across the entire organization. Only Super Users can manage organization-level settings, add or remove other administrators, and assign privileges to users.”

This means that only a Super User canadd new administrators, managesubscription entitlements, configureorganization-level policies, and performfull lifecycle device management. Unlike site administrators, Super Users are not restricted to specific locations—they have unrestricted visibility and control across all sites within the organization.

Therefore, the correct answer isD, since the Super User role is explicitly required toadd administratorsto an organization and perform top-level management operations.

A high percentage of Asymmetry Uplink errors indicates coverage holes caused by asymmetric uplink strength between the AP and client devices. According to Juniper Mist's official documentation: "Asymmetry Uplink—Clients received a weak signal due to asymmetric uplink strength between the AP and the client device. (Uplink traffic is the traffic going from the client to the AP, and then to the Internet.) Asymmetry can occur for various reasons, such as clients being too far from the AP." This generally means that clients are physically located at a distance or behind obstacles (such as walls), causing the AP to detect weak signals from those clients. Coverage holes arise when APs are placed such that some areas have insufficient RF coverage, and the low-powered client devices cannot maintain reliable communication with the AP—even though the AP, with its higher transmit power, might hear the client, the client cannot send strong enough signals back. The SLE classifier is designed to highlight such areas for remediation, prompting network admins to review and enhance AP placement or signal thresholds.

With a Marvis VNA subscription, support ticket creation in Juniper Mist is enhanced by in-context AI-assisted troubleshooting and AI-generated responses. According to official Mist documentation, “Marvis subscribers will see AI-generated responses that summarize information from Juniper Mist documentation as they start entering their support query—often surfacing relevant answers right within the support workflow. For many issues, AI-assisted troubleshooting buttons appear on the support form itself, launching guided, context-aware diagnostic flows with Marvis to resolve problems before a ticket is formally created.” These features use natural language processing and contextual data to provide intuitive, AI-driven self-help and troubleshooting, improving the support workflow and often eliminating the need to escalate to human agents or require configuration assistance. Escalation is handled by support, not Marvis VNA; and configuration assistance is a general feature, not specifically added by the Marvis VNA subscription.

The Juniper Mist REST API primarily provides functions for Juniper Mist configuration and historic statistics monitoring. According to the Juniper Mist documentation and API reference, the REST API allows users to automate configuration changes and retrieve historical data for analysis and reporting. Specifically, “configuration” functions include creating, updating, and deleting sites, devices, SSIDs, VLANs, templates, and user roles through API calls. “Historic statistics monitoring” refers to the API’s capability to pull time-series analytics on network and device performance, enabling users to query device usage, client events, SLE metrics, and application data over customizable timeframes.

Real-time statistics and event-driven monitoring are typically accessed via Mist’s WebSocket API, not the REST API. The REST API focuses on configuration management and historical data extraction for audit and trend analysis, supporting full automation and integration with third-party tools.

Verification:

These answers match the selections marked in your image ("Juniper Mist configuration" and "historic statistics monitoring") and are verified per Juniper’s API documentation and feature matrix.

Juniper Mist WAN Assuranceis a cloud-based service that extends Mist AI capabilities to the WAN edge, providing visibility, automation, and AI-driven analytics for WAN devices. It focuses on ensuringend-to-end service assurancefor users and applications across distributed networks.

According to theJuniper Mist WAN Assurance and SD-WAN Deployment Guide, the supported devices include:

“Juniper SRX Series Firewalls and Session Smart Routers (SSR) are integrated with Mist WAN Assurance for telemetry collection, service-level monitoring, and AI-driven troubleshooting.”

SRX Series Firewalls (A):Provide secure WAN connectivity and send real-time telemetry (including throughput, latency, and packet loss metrics) to Mist Cloud.

Session Smart Routers (C):Power the AI-driven SD-WAN solution with application-aware routing and session intelligence, fully integrated into Mist Cloud for advanced visibility and analytics.

EXandQFXswitches are used withWired Assurance, not WAN Assurance.

Therefore, the correct answers areA. SRX Series FirewallsandC. Session Smart Routers.