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[General] Download PassCollection Juniper JN0-253 Exam Dumps and Start Preparation

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【General】 Download PassCollection Juniper JN0-253 Exam Dumps and Start Preparation

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Juniper JN0-253 Exam Syllabus Topics:
TopicDetails
Topic 1
  • Location-based Services: This domain presents virtual Bluetooth Low Energy capabilities for asset tracking, visibility, and location-aware experiences that extend networking into physical space management.
Topic 2
  • Juniper Mist Network Operations and Management: This domain examines operational features across Wi-Fi, Wired, WAN, Routing, and Access Assurance, delivering specialized management capabilities for different network infrastructure layers.
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.
Topic 4
  • 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 5
  • Marvis Virtual Network Assistant AI: This domain introduces Marvis, an AI-powered assistant providing automated troubleshooting through intelligent actions, natural language queries, and specialized analytical tools for proactive issue resolution.

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Juniper Mist AI, Associate (JNCIA-MistAI) Sample Questions (Q16-Q21):NEW QUESTION # 16
Exhibit:

Referring to the exhibit, which sub-classifier contributed the most to capacity issues?
  • A. Capacity
  • B. Excessive Client Load
  • C. WiFi Interference
  • D. Network Issues
Answer: B
Explanation:
In theJuniper Mist Wireless Assurance dashboard, eachService Level Expectation (SLE)is broken down intosub-classifiersto identify the specific causes of degraded user experience. For theCapacity SLE, Mist AI analyzes performance indicators related to access point utilization, airtime availability, client density, and radio congestion.
According to theJuniper Mist Wireless Assurance Analytics Guide, sub-classifiers within the Capacity SLE may include:
* WiFi Interference- measures co-channel and adjacent-channel interference.
* Capacity- monitors total bandwidth and airtime utilization.
* Network Issues- highlights backend transport or switching congestion.
* Excessive Client Load- indicates when too many clients are associated with a single access point or radio, leading to reduced throughput and contention.
In the exhibit, theExcessive Client Loadbar clearly shows the highest contribution to the Capacity SLE degradation. This means that the majority of capacity issues were caused byan overloaded access point or radio channelhandling more clients than optimal.
Therefore, the correct answer isD. Excessive Client Load.
References:- Juniper Mist Wireless Assurance SLE and Classifier Documentation- Juniper Mist AI Operations and Analytics Guide- Juniper Mist Cloud Dashboard Metrics Overview

NEW QUESTION # 17
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 # 18
Which two statements describe port profiles? (Choose two.)
  • A. They include a set of interface configurations.
  • B. They include a set of routing configurations.
  • C. They must be assigned to only one port.
  • D. They can be assigned to multiple ports.
Answer: A,D
Explanation:
Port profilesinJuniper Mist Wired Assuranceare reusable configuration templates that define how switch ports behave. They streamline switch provisioning and ensure consistent configurations across multiple ports and devices within a site or organization.
According to theJuniper Mist Wired Assurance Configuration Guide, port profiles are defined as:
"A collection of interface-level settings that can be applied to one or more switch ports to simplify configuration and ensure uniform policy enforcement." Key characteristics include:
* Reusable templatesort profiles can beassigned to multiple portson one or more switches, allowing rapid deployment and consistent port behavior (e.g., access, trunk, voice VLAN).
* Interface-level parameters:They include settings such as VLAN assignments, PoE configuration, speed, duplex, and LLDP options.
Port profilesdo not include routing configurations(those are defined at the Layer 3 interface or VLAN interface level) and arenot limited to a single port.
Therefore, the correct answers are:
* A. They can be assigned to multiple ports.
* B. They include a set of interface configurations.
References:- Juniper Mist Wired Assurance Configuration and Templates Guide- Juniper Mist Cloud Switch Management Documentation- Juniper EX Series Switch Wired Assurance Overview

NEW QUESTION # 19
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. Live View
  • B. WebSocket
  • C. webhooks
  • D. RESTful API
Answer: A,B
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 # 20
How does Marvis detect a bad cable problem?
  • A. Marvis randomly performs cable tests on every cable in your network.
  • B. Marvis randomly performs packet captures on various APs to find bad cables in your network.
  • C. Marvis analyzes metrics, such as interface errors, that match a bad cable pattern.
  • D. Marvis constantly sends ping packets to remote end hosts to determine whether there is a failure in the path.
Answer: C
Explanation:
Marvis, the AI-driven Virtual Network Assistant inJuniper Mist, uses continuous telemetry analysis and AI correlation to identifybad cable conditions. It does this by examining interface-level statistics gathered from switches and access points throughWired Assurance.
According to theJuniper Mist Marvis Operations and Troubleshooting Guide:
"Marvis detects bad cable issues by analyzing telemetry patterns such as CRC errors, FCS errors, packet drops, and link flaps that collectively match a known cable fault signature." When such patterns are detected, Marvis automatically generates anAI Actionindicating aBad Cableissue and identifies whether the problem is with theportor thecable. This proactive detection allows administrators to replace faulty hardware before it impacts network users.
Options A, B, and C are incorrect because Marvis does not perform active pinging, random packet captures, or random cable testing. Its detection is entirelyAI and telemetry-based.
Therefore, the correct answer isD. Marvis analyzes metrics, such as interface errors, that match a bad cable pattern.
References:- Juniper Mist Marvis AI Operations Guide- Juniper Mist Wired Assurance and Telemetry Analytics Documentation- Juniper Mist AI Troubleshooting and Automation Overview

NEW QUESTION # 21
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