Pass the Juniper JNCIS-MistAI JN0-452 Questions and answers with Dumpstech

 The AP Offline Marvis Action will consider all APs assigned to sites that have connected to the cloud previously for inclusion. So the correct answer is A. all APs assigned to sites that have connected to the cloud previously.

In Juniper Networks Mist AI Wireless, understanding modulation schemes is essential for designing and operating high-performance Wi-Fi 6 (802.11ax) networks. Modulation directly affects how much data can be transmitted per symbol, and therefore determines the maximum achievable data rates under optimal RF conditions.

802.11ax introduces 1024-QAM (Quadrature Amplitude Modulation) as its highest supported modulation scheme. With 1024-QAM, each symbol encodes 10 bits of data, which represents a significant increase compared to earlier standards. For reference:

64-QAM (used in earlier standards) carries 6 bits per symbol

256-QAM (introduced in 802.11ac) carries 8 bits per symbol

1024-QAM increases this to 10 bits per symbol

This higher bit density allows Wi-Fi 6 devices to achieve higher peak throughput, especially in environments with excellent signal quality. However, 1024-QAM requires very high Signal-to-Noise Ratio (SNR) and low interference to function reliably. As a result, it is typically achieved only when clients are close to the access point and RF conditions are clean.

Mist AI Wireless continuously monitors client RSSI, SNR, retransmissions, and modulation rates through advanced telemetry. Using this data, Mist can determine whether clients are successfully operating at higher modulation levels like 1024-QAM or are falling back to lower schemes due to RF impairments. This insight directly feeds into SLEs and AI-driven recommendations for RF tuning, AP placement, and channel planning.

The incorrect options are explained as follows:

64-QAM and 256-QAM are valid modulation schemes but do not provide the highest data rates in 802.11ax.

4096-QAM is not supported by the 802.11ax standard and is therefore invalid.

Thus, 1024-QAM is the modulation scheme that provides the highest data rate level for 802.11ax devices.

The Clone Site feature in the Juniper Mist dashboard is a powerful tool designed to streamline the deployment of new physical locations by duplicating the environmental and operational logic of an existing "gold standard" site. However, to avoid configuration conflicts (such as duplicate addresses) and to maintain the integrity of the hierarchy, Mist is selective about which objects are carried over during the cloning process.

According to Juniper Mist documentation, only the settings visible on the Site Configuration page are copied to the new site. This specifically includes:

Auto Firmware Upgrade settings (A): The specific versioning (Production vs. RC) and the weekly or daily maintenance windows defined for the site are preserved. This ensures that the new site follows the same lifecycle management policy as the primary site.

RF Templates (B): The radio resource management (RRM) profile assigned to the site is copied. This includes channel planning, bandwidth settings (20/40/80 MHz), and power level constraints tailored for that environment.

Other Site-Level Settings: This also includes Webhooks, Rogue/Honeypot AP detection rules, and Location Services settings.

Conversely, certain objects are explicitly not copied. The Site Location (C) and Site Name are excluded because each site must be geographically unique for accurate mapping and time zone calculation. WLANs (D) are also not copied through the Clone Site function; SSIDs are typically managed at the Organization level via WLAN Templates, which are then mapped to sites or site groups rather than being "hardcoded" into an individual site's local configuration. By cloning the site-specific parameters like RF templates and upgrade schedules, Mist allows administrators to rapidly scale their infrastructure while ensuring the core network access (WLANs) is maintained through the overarching organizational policy.

To review and troubleshoot the roaming activity of a specific client within a Juniper Mist environment, administrators rely on the conversational and analytical power of the Marvis Virtual Network Assistant (D) and its underlying Marvis Query Language (C). While other Marvis components like Actions focus on organization-wide health and Minis focus on synthetic testing, the VNA and MQL are specifically designed for deep-dive investigations into individual client experiences.

The Marvis Virtual Network Assistant (VNA) serves as the primary interface for this task. It allows an administrator to interact with the Mist AI using natural language. By typing a request such as "Troubleshoot client [Client Name]" or "How was the roaming for [Client Name]?", Marvis VNA aggregates all relevant telemetry data—including signal strength (RSSI), AP transitions, and authentication timings—into a simplified, human-readable summary. It provides a visual timeline of where the client moved and whether each roam was successful, slow, or failed.

Behind the scenes, these natural language requests are often converted into or powered by the Marvis Query Language (MQL). MQL is a structured way to query the Mist Graph API. For specific roaming reviews, the ROAMINGOF clause is used to filter the massive Mist data set for events related only to that client's mobility. For example, a query like roaming of "User-1" during last 24 hours will return a detailed data set showing the "From AP" and "To AP" details, the delta in signal strength during the handoff, and any associated latency.

By using these two features together, administrators can distinguish between a "sticky client" (one that refuses to roam despite a better signal being available) and a "coverage hole" (where the signal drops too low before a new AP is detected). This AI-driven approach eliminates the need for manual packet captures or log parsing, significantly reducing the Mean Time to Repair (MTTR) for mobility-related issues.

Syslog is a protocol that can be used to forward event messages from Mist to an external log collector.

According to the Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide1, syslog is a feature that enables forwarding event messages from Mist to an external log collector. Syslog messages can be sent over UDP or TCP protocols.

According to the JNCIS-MistAI Certification page2, two Mist APs that would be used for BLE location are AP33 and AP43. These are the only two models that support vBLE array technology, which enables accurate location services without physical beacons.

According to the Mist documentation1, asset tracking is a service that allows you to find key assets and people with detailed analytics based on their location using Mist-supported third-party BLE beacons. To enable asset tracking, you need to configure both the BLE beacons and the Mist cloud settings.

The Show assets check box is a setting in Live View that allows you to display or hide the assets on the floor plan2. If this check box is not selected, you will not be able to see the third-party beacons on Live View.

The Locate this Client as an Asset check box is a setting at the BLE client level that allows you to treat a BLE client as an asset for location purposes3. If this check box is not selected, you will not be able to track the BLE client as an asset.

If a customer added an Apple TV in their conference room so that employees can easily share their screen but the Apple TV cannot be discovered by the employees’ devices, two settings that could be causing this problem are MDNS and Broadcast/Multicast. So the correct answers are A. MDNS and B. Broadcast/Multicast.