JN0-452 Exam Dumps - Juniper JNCIS-MistAI Questions and Answers

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.

According to the Mist documentation1, WLANs are wireless networks that can be configured with different settings such as SSID, security, encryption, authentication, etc. WLANs can be created and managed at different levels of hierarchy in the Mist cloud.

The site group level allows you to create and apply WLANs to a group of sites that share common characteristics or requirements2. This helps you to simplify and standardize your WLAN configuration across multiple sites.

The site level allows you to create and manage WLANs for a specific site that may have unique needs or preferences1. This gives you more flexibility and granularity for your WLAN configuration at each site.

According to the Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide2, a non-compliant AP is an AP that has a different hardware model than what is expected by the cloud configuration. This can happen when an AP is replaced with an incorrect model or when an AP is moved to a different site group that has a different hardware model requirement. The solution is to replace the AP with the correct hardware model.

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.

According to the Virtual Network Assistant | Juniper Networks US document, Asymmetry Downlink is a classifier under the Coverage SLE that tracks an AP that transmits at a lower data rate than a connected client. This can indicate poor coverage or interference issues that affect downlink performance.

Transmissions over Wi-Fi are shared medium and half-duplex.

According to the IEEE 802.11 - Wikipedia document2, two terms that correctly describe transmissions over Wi-Fi are:

Shared medium, which means that multiple devices use the same wireless channel and have to compete for access and avoid collisions.

Half-duplex, which means that devices can either transmit or receive data at a time, but not both simultaneously.

A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It typically establishes a barrier between a trusted internal network and an untrusted external network, such as the Internet .

InJuniper Networks Mist AI Wireless, access points must beclaimedto an organization in the Mist cloud before they can be configured, monitored, and managed. When deploying APs at scale, Juniper provides an efficient mechanism to onboardmultiple access points simultaneouslyusing anactivation code.

An activation code is abulk-claim methodgenerated within the Mist cloud portal. This code is typically associated with a purchase order or shipment and can represent dozens, hundreds, or even thousands of access points. When the activation code is applied to an organization, all APs tied to that code are automatically claimed at once. This approach is especially valuable for enterprise and campus deployments, where manual per-device onboarding would be impractical.

Once claimed using an activation code, APs can be assigned to sites, receive configurations, and leverageZero-Touch Provisioning (ZTP). As soon as the APs obtain network connectivity and reach the Mist cloud, they automatically download their configuration and become operational without further manual intervention.

The other options are incorrect for the following reasons:

QR codesare used for claimingindividual APs, typically during small deployments or troubleshooting scenarios.

Digital certificatesare used for secure authentication and communication but are not a method for claiming APs to an organization.

The Juniper Mist Mobile Applicationcan assist with onboarding and visibility but does not provide a bulk-claim mechanism for large numbers of APs.

Therefore, the correct and documented method for claimingmultiple Juniper Access Points simultaneouslyis touse an activation code, making optionAthe correct answer.

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.