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JN0-253 Braindumps PDF, Juniper JN0-253 Exam Cram [Q46-Q62]

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JN0-253 Braindumps PDF, Juniper JN0-253 Exam Cram

New 2026 JN0-253 Sample Questions Reliable JN0-253 Test Engine

NEW QUESTION # 46
An AP is connected to your wired network but is not claimed to your organization.
Which type of AP would be a possible security threat in this scenario?

  • A. neighbor AP
  • B. spoofed AP
  • C. honeypot AP
  • D. rogue AP

Answer: D

Explanation:
Types of APs and Security Threats:
Understanding different types of access points and their potential security threats.
Access Point Types:
Neighbor AP: An access point that belongs to a neighboring network and is not necessarily a security threat.
Rogue AP: An unauthorized access point connected to the wired network, posing a significant security threat.
Spoofed AP: An access point that mimics a legitimate one, but typically does not involve being connected to the network.
Honeypot AP: An access point set up to lure attackers, not necessarily a threat unless used maliciously.
Identifying the Threat:
An AP connected to your wired network but not claimed to your organization is considered a rogue AP and poses a security threat.


NEW QUESTION # 47
Which statement describes Juniper Mist Insights in the dashboard?

  • A. It provides a high-level view of the network events that occurred over the last month.
  • B. It provides AI-driven actions that are the most urgent and require priority attention.
  • C. It provides a high-level view of the network experience across an entire site or device types.
  • D. It provides a high-level view of the network events that occurred over the last year.

Answer: C

Explanation:
Juniper Mist Insights in the dashboard provides a high-level view of the network experience across an entire site or device types. According to the official Juniper Mist documentation: "The Mist Insights page provides a quick overview into your clients' network experience for anywhere in the stack, be it Wireless, Wired, or WAN networks. Insights gives an overview of network experience across the entire site, access points, or client devices." This feature enables administrators to analyze overall connection status, traffic patterns, latency, and trends at multiple context levels-for the whole site, for specific devices, or for client segments.
This holistic overview helps identify patterns and assess the health of network operations, empowering proactive management and troubleshooting. Review periods can range from minutes to days, depending on the dashboard section and the organization's licensing.
Reference:Juniper Mist Insights Overview


NEW QUESTION # 48
What does the "Exceeded" status mean for a subscription?

  • A. The subscription is nearing its expiration date.
  • B. The subscription has been cancelled.
  • C. The allowed usage within the subscription has been surpassed.
  • D. The subscription exceeds the number of maximum allowable APs.

Answer: C

Explanation:
The "Exceeded" status for a subscription means that the allowed usage defined within the subscription has been surpassed.
This typically refers to exceeding limits such as the number of devices, data usage, or other metrics specified in the subscription plan.
Exceeding these limits may require action such as upgrading the subscription plan to accommodate the additional usage.


NEW QUESTION # 49
Your company hosts its own enterprise-wide monitoring solution. You want to receive events from Juniper Mist.
How would you accomplish this task?

  • A. Using a webhook
  • B. Using the API
  • C. Sending an e-mail
  • D. Using a WebSocket

Answer: A

Explanation:
In theJuniper Mist Cloud,webhooksare used to sendreal-time event notificationsfrom Mist Cloud to external systems such as third-party monitoring or automation platforms. This integration mechanism allows administrators to collect alerts, status changes, and analytics data directly from Mist Cloud without the need for constant API polling.
According to theJuniper Mist API and Webhook Integration Guide, webhooks are defined as:
"A push-based communication method that enables Juniper Mist Cloud to send event data to a customer- defined HTTP endpoint when specific network events occur." This capability allows seamless integration with enterprise monitoring solutions such asServiceNow,Splunk, orDatadog, enabling organizations to centralize event management.
The other options are not suitable:
* A (API):APIs are pull-based and require polling for updates, not push notifications.
* B (Email):Not supported for automated system-to-system event delivery.
* D (WebSocket):Used for live telemetry and streaming data (e.g., client updates), not event alerts.
Therefore, the correct method isC. Using a webhook.
References:- Juniper Mist API and Webhook Developer Documentation- Juniper Mist Cloud Automation and Integration Guide- Juniper Mist Cloud Operations Overview


NEW QUESTION # 50
You are asked to create a real time visualization dashboard which displays clients on a map.
Which two Juniper Mist functions would you use in this scenario? (Choose two.)

  • A. webhooks
  • B. RESTful API
  • C. Live View
  • D. WebSocket

Answer: C,D

Explanation:
To create a real-time visualization dashboard that displays clients on a map, use Live View and WebSocket APIs. The "Live View" feature in Juniper Mist provides a graphical, interactive map view of clients (devices) and assets as they move through a site, with location data updated in real time. The Juniper Mist WebSocket API enables developers and integrators to subscribe to client location topics and stream position data directly to custom dashboards. According to the documentation: "WebSockets open a bidirectional communication session for sending and receiving real-time event-driven responses... Useful in circumstances where you want to avoid browser refreshes and display real-time location data." Combining these allows you to build a dashboard showing live client positioning, as seen in sample dashboards and integration guides for Mist.
Reference:WebSocket API Overview | Mist Juniper Mist Automation and Integration Guid


NEW QUESTION # 51
Which two statements are correct about the Juniper Mist "Successful Connects" SLE? (Choose two.)

  • A. It measures the percentage of client connection attempts that succeed without failure.
  • B. Failures can be classified by stage, such as association, authorization, or DHCP.
  • C. It applies only to guest WLANs.
  • D. It cannot distinguish between different failure reasons.

Answer: A,B

Explanation:
The Successful Connects SLE measures the overall percentage of client connection attempts that complete successfully. When failures occur, Mist further classifies them by the specific stage at which they failed, such as association, authorization (802.1X/PSK), or DHCP, helping administrators quickly identify where in the connection process problems are occurring.


NEW QUESTION # 52
What are two components of WiFi Management and Assurance? (Choose two.)

  • A. Dynamic Packet Capture
  • B. Radio Resource Management
  • C. wayfinding
  • D. Marvis Actions

Answer: A,B

Explanation:
Radio Resource Management (RRM) optimizes wireless performance through AI-driven channel and power adjustments.
Dynamic Packet Capture provides automated traffic captures for troubleshooting and performance analysis within WiFi Management and Assurance.


NEW QUESTION # 53
Which two Juniper devices are used in Juniper Mist WAN Assurance? (Choose two.)

  • A. SRX Series firewalls
  • B. EX Series switches
  • C. Session Smart Routers
  • D. QFX Series switches

Answer: A,C

Explanation:
Session Smart Routers (SSR) provide WAN telemetry and path monitoring for WAN Assurance.
SRX Series firewalls can also be integrated to provide WAN monitoring and visibility as part of Juniper Mist WAN Assurance.


NEW QUESTION # 54
Which two statements are correct about the Juniper Mist "Application Health" SLE? (Choose two.)

  • A. It is only applicable to wired switch interfaces.
  • B. It cannot be customized to track specific applications.
  • C. It helps identify whether poor application performance is caused by the network or the application/internet path.
  • D. It measures the performance of specific cloud applications such as Office 365 or Zoom.

Answer: C,D

Explanation:
The Application Health SLE tracks the performance of specific, often business-critical, cloud applications (such as Office 365, Zoom, or Salesforce) from the client's perspective, helping administrators determine whether performance issues stem from the local network or from the application/internet path beyond the network's control.


NEW QUESTION # 55
What are two requirements for a WebSocket call? (Choose two.)

  • A. authentication token
  • B. WebSocket connection URL
  • C. WebSocket configuration
  • D. encryption token

Answer: A,B


NEW QUESTION # 56
How often does Marvis Minis execute automatic validations?

  • A. every day
  • B. every 30 minutes
  • C. every week
  • D. every hour

Answer: A

Explanation:
Marvis Minis automatically run daily validations to simulate client behavior, ensuring continuous verification of network performance and configuration.


NEW QUESTION # 57
Which statement is correct about the relationship between Juniper Mist organizations and sites?

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

Answer: B

Explanation:
In Juniper Mist, an organization is the top-level container that manages policies, subscriptions, and users. Each organization can include multiple sites, allowing centralized management of networks across different locations.


NEW QUESTION # 58
In the Mist UI, what should you do to support mobile device engagement?

  • A. Use ESL
  • B. Enable vBLE
  • C. Enable Local Status Page
  • D. Use Wi-Fi 6

Answer: B

Explanation:
To supportmobile device engagementwithin theJuniper Mist Cloud UI, you mustenable virtual Bluetooth Low Energy (vBLE). The vBLE functionality allows Mist Access Points (APs) to transmitBluetooth beacons that interact with mobile devices running location-aware applications. This capability is essential foruser engagement servicessuch as indoor navigation, proximity notifications, and personalized customer interactions.
According to theJuniper Mist Location-Based Services Configuration Guide, the process is defined as follows:
"To enable mobile engagement and location-based experiences, the vBLE feature must be activated on supported Mist Access Points. Once enabled, APs transmit programmable BLE signals that communicate with mobile devices through the Mist SDK." Enabling vBLE allows administrators to:
* Providewayfindingandpush notification serviceswithin indoor environments.
* Supportmobile app integrationthrough theMist Location SDK.
* Customize engagement campaigns viavirtual beaconswithout requiring physical beacon hardware.
Other options are incorrect because:
* Wi-Fi 6improves wireless efficiency but is unrelated to BLE-based engagement.
* Local Status Pageis used for AP health monitoring, not engagement.
* ESL (Electronic Shelf Labels)applies to retail price display systems, not user interaction.
Therefore, the correct answer isA. Enable vBLE.
References:- Juniper Mist Location-Based Services Configuration and Deployment Guide- Juniper Mist vBLE and Mobile Engagement Overview- Juniper Mist Cloud User Engagement and SDK Integration Documentation


NEW QUESTION # 59
You are asked to create a real-time visualization dashboard which displays clients on a map.
Which two Juniper Mist functions would you use in this scenario? (Choose two.)

  • A. RESTful API
  • B. Webhooks
  • C. Live View
  • D. WebSocket

Answer: C,D

Explanation:
When developing areal-time visualization dashboardthat displays client locations on a map, Juniper Mist offers specific APIs and data streaming methods to support dynamic updates.
According to the Juniper Mist Developer Documentation, theWebSocketinterface enables continuous,real- time streaming of client location and telemetry datadirectly from the Mist Cloud. This mechanism is ideal for live dashboards, as it eliminates the need for repeated REST API polling. WebSocket connections provide instant updates whenever a device moves, connects, or disconnects, ensuring the displayed map remains accurate in real time.
TheLive Viewfeature complements this functionality within the Mist Cloud and third-party integrations. It allows administrators and developers toview live location movements of Wi-Fi clients, BLE beacons, and IoT deviceswithin a site's floor plan. It uses telemetry directly from access points, offering second-by-second updates.
In contrast,RESTful APIsandWebhooksare designed for event-based automation and configuration management rather than live visualization. REST APIs are best for historical or static data retrieval, while Webhooks are used for triggering external actions based on events.
Therefore, the correct functions for real-time map visualization are:
* WebSocket (C)- for continuous live data streaming
* Live View (D)- for direct map-based visualization of client activity
References:- Juniper Mist Developer API and WebSocket Guide- Juniper Mist Location Services and Live View Documentation- Juniper Mist Cloud Architecture Overview


NEW QUESTION # 60
Which Juniper Mist dashboard feature uses the ROAMINGOF element?

  • A. Conversational Assistant
  • B. Wireless SLE
  • C. Marvis Minis
  • D. Marvis Query Language

Answer: D

Explanation:
TheROAMINGOF elementis part of theMarvis Query Language (MQL), which is the structured query syntax used byMarvis, Juniper'sVirtual Network Assistant (VNA).
According to theJuniper Mist Marvis and MQL Technical Reference, Marvis Query Language provides advanced data query and automation capabilities that go beyond the conversational interface. It allows administrators to directly extract analytical insights, run network diagnostics, and perform queries related to user experience metricsandService Level Expectations (SLEs).
The documentation specifies:
"MQL is the analytical engine of Marvis that uses elements such as ROAMINGOF, CONNECTIVITYOF, and PERFORMANCEOF to query Mist data and retrieve SLE metrics, performance trends, and device events." TheROAMINGOFelement specifically relates to theWireless Roaming SLEcategory, enabling Marvis to evaluate client roaming performance across access points, identify failed transitions, and correlate signal quality or capacity-related issues.
While theConversational Assistant (A)uses natural language queries, it translates them internally intoMQL commands.Marvis Minis (C)runs synthetic tests, andWireless SLE (D)displays performance metrics but does not directly use MQL syntax elements.
Thus, the correct answer isB. Marvis Query Language.
References:- Juniper Mist Marvis Query Language (MQL) Reference Guide- Juniper Mist Marvis Virtual Network Assistant Technical Overview- Juniper Mist AI Operations and Insights Documentation


NEW QUESTION # 61
Under which category would you identify bad cables using Marvis Actions?

  • A. Layer 1
  • B. Connectivity
  • C. Security
  • D. Clients

Answer: A

Explanation:
Bad cables are physical layer issues, so Marvis Actions classifies them under Layer 1, which deals with the physical infrastructure of the network.


NEW QUESTION # 62
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