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

When deploying three WLAN 2.4 GHz networks in your US-based site while ensuring that each network frequency is unique and does not overlap with other frequency channels, you should use OFDM channels 1, 6 and 11. So the correct answers are B.1, D.6, and A.11.

According to the Lecture 3 - Radio Frequency and Antenna Fundamentals - Part 2 document3, two layers that are different between Ethernet and Wi-Fi in the OSI networking model are:

Media access control (MAC) sub-layer, which is part of the data link layer and defines how devices access and share the wireless medium.

Physical layer, which defines how data is encoded and transmitted over the wireless medium.

If Bluetooth-only mobile client devices with an SDK-enabled app do not appear in the Mist GUI under Clients/App Clients even though they have Bluetooth enabled, it could be because the AP BLE radios do not hear the SDK-enabled client’s BLE beacons.

According to the Mist documentation1, Mist SDK is a software development kit that enables indoor location and proximity services using Mist’s virtual Bluetooth LE (vBLE) technology. The SDK allows mobile applications to communicate with Mist APs using BLE beacons that are transmitted by the client devices.

The devices with the SDK-enabled app have Bluetooth enabled, but they do not appear in the Mist GUI under Clients/App Clients because the AP BLE radios do not hear the SDK-enabled client’s BLE beacons. This could be due to various factors such as interference, distance, obstacles, or configuration issues that affect the BLE signal strength and quality.

When deploying multiple Mist APs across many sites in your network and grouping similar devices together to easily apply consistent WxLAN policies across multiple sites, you should use device profiles.

InJuniper Networks Mist AI Wireless, accurate location-based services (LBS) depend heavily on proper RF design and access point density. Juniper recommends that devices participating in Mist LBS maintainline-of-sight (LoS) to at least three access pointsto achieve reliable and consistent location accuracy.

Mist location services use advanced techniques such asRSSI triangulation,virtual BLE (vBLE), andAI-driven probability surface modelingto calculate a device’s position. These algorithms require multiple independent signal measurements to accurately determine a device’s X,Y coordinates. With signals received fromthree or more APs, Mist can triangulate the device position effectively and minimize errors caused by multipath reflections, attenuation, or transient RF noise.

If a device has line-of-sight to only one or two APs, the system lacks sufficient spatial diversity to calculate a precise location. This can result in ambiguous positioning, reduced accuracy, or excessive location “drift.” While additional APs (four or more) can further improve accuracy and stability—especially in high-value use cases such as asset tracking or wayfinding—three APs is the recommended minimum baselinefor dependable LBS performance.

Mist’s AI continuously evaluates signal quality, AP geometry, and environmental factors to refine location estimates, but it cannot compensate for insufficient AP visibility. As a result, Juniper best practices for LBS design emphasize:

Proper AP placement and height

Adequate AP density

Ensuring devices can “see” at least three APs at all times

The other options are incorrect because:

One or two APsdo not provide enough data for reliable triangulation.

Four APsmay improve accuracy but are not the minimum recommendation.

Therefore, the correct answer isB. 3.

Once a client discovers an access point, the correct order of steps for successful 802.1X authentication is Open System Authentication -> Association -> 802.1X Authentication. So the correct answer is D.Open System Authentication -> Association -> 802.1X Authentication.

The WLANs with SSIDs NETGEAR24 and Bob24WiFi will cause adjacent channel interference because they are using overlapping channels in the 2.4 GHz frequency band.

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.