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Juniper JN0-253 Exam Syllabus Topics:

Section	Objectives
Topic 1: Wireless Assurance	- Wi-Fi management and optimization 1. AP provisioning and configuration 2. RF optimization and analytics
Topic 2: Mist AI Fundamentals	- AI-driven networking concepts 1. Intent-based networking overview 2. AI/ML in network operations
Topic 3: Troubleshooting and Analytics	- Network performance analysis 1. Client experience monitoring 2. Event and log analysis
Topic 4: Marvis AI Assistant	- AI-powered troubleshooting 1. Network insights and recommendations 2. Natural language queries
Topic 5: Mist Cloud Architecture	- Cloud services and platform components 1. Mist cloud architecture components 2. Device onboarding and management
Topic 6: Wired Assurance	- Switch monitoring and management 1. Port and client visibility 2. Switch onboarding

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Juniper Mist AI, Associate (JNCIA-MistAI) Sample Questions (Q29-Q34):

NEW QUESTION # 29
How does Marvis detect a bad cable problem?

A. Marvis randomly performs cable tests on every cable in your network.
B. Marvis constantly sends ping packets to remote end hosts to determine whether there is a failure in the path.
C. Marvis randomly performs packet captures on various APs to find bad cables in your network.
D. Marvis analyzes metrics, such as interface errors, that match a bad cable pattern.

Answer: D

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 # 30
Which Mist supported API is considered data-driven?

A. Webhook
B. WebSocket
C. gRPC
D. RESTful

Answer: D

NEW QUESTION # 31
Which two protocols does Marvis Minis automatically validate? (Choose two.)

A. Simple Network Management Protocol (SNMP)
B. Network Time Protocol (NTP)
C. Address Resolution Protocol (ARP)
D. Dynamic Host Configuration Protocol (DHCP)

Answer: B,D

Explanation:
DHCP is validated by Marvis Minis to ensure clients can successfully obtain IP addresses.
NTP is also validated to confirm accurate time synchronization, which is essential for proper network operation and troubleshooting.

NEW QUESTION # 32
Which two statements are correct about the Juniper Mist vBLE Asset Visibility mode? (Choose two.)

A. The vBLE antenna tracks chirps from BLE tags.
B. The vBLE antenna is in the transmit mode.
C. The vBLE antenna communicates with mobile devices running the Juniper Mist location SDK.
D. The vBLE antenna is in the receive mode.

Answer: A,D

Explanation:
Juniper Mist'svirtual Bluetooth Low Energy (vBLE)technology is designed to deliverprecise indoor location servicesusing cloud-managed access points equipped with integrated BLE antenna arrays. The system supports multiple operational modes, includingEngagement Mode(for mobile app interactions) and Asset Visibility Mode(for BLE tag tracking).
According to theJuniper Mist Location Services Documentation, inAsset Visibility Mode, the vBLE antenna functions primarily inreceive modeto detect and process signals emitted fromBLE asset tags. These tags periodically transmit Bluetooth "chirps" that are received by multiple APs. Mist Cloud then usesangle-of- arrival (AoA)andRSSI triangulation algorithmsto determine the exact location of the asset within the facility.
The documentation specifies:
"In Asset Visibility Mode, the vBLE antenna operates in receive mode and listens for BLE tag beacons (chirps). The system triangulates these signals to calculate the real-time location of tracked assets." Conversely,Engagement Modeis the configuration in which vBLE operates intransmit modeto interact with mobile devices running the Mist SDK - which corresponds to location-based engagement or proximity notifications.
Thus, the correct answers are:
* A. The vBLE antenna is in the receive mode
* B. The vBLE antenna tracks chirps from BLE tags
References:- Juniper Mist Location-Based Services Configuration Guide- Juniper Mist vBLE Architecture and Operation Modes Documentation- Juniper Mist Cloud Location Services Technical Overview

NEW QUESTION # 33
Which two statements describe port profiles? (Choose two.)

A. They must be assigned to only one port.
B. They can be assigned to multiple ports.
C. They include a set of routing configurations.
D. They include a set of interface configurations.

Answer: B,D

Explanation:
Port profiles define a set of interface configurations that can be reused.
They can be applied to multiple ports, ensuring consistent configuration across the network.

NEW QUESTION # 34
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