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| Section | Objectives |
|---|---|
| Topic 1: AI-Driven Assurance and Marvis | - Network insights and anomaly detection - Marvis AI assistant capabilities |
| Topic 2: Troubleshooting and Operations | - Wireless performance optimization - Client connectivity troubleshooting |
| Topic 3: Wireless LAN Fundamentals | - Channel planning and RF behavior - 802.11 standards and RF basics |
| Topic 4: Mist AI Architecture and Components | - Mist Cloud architecture overview - Access points, gateways, and management models |
| Topic 5: Mist AP Configuration and Deployment | - Site creation and AP onboarding - SSID configuration and policy application |
| Topic 6: Security and Access Control | - Authentication methods (802.1X, PSK) - Policy enforcement and segmentation |
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NEW QUESTION # 16
You are asked to perform a site survey on your enterprise by using a Juniper Access Point (AP) that is fully functional and visible by the Juniper Mist cloud. Your enterprise provides you with the portable equipment for elevating the Juniper AP and a battery that properly powers it. In this scenario, how would you ensure that the Juniper AP will be fully functional for site survey purposes?
Answer: D
Explanation:
In a traditional deployment, aJuniper Mist Access Pointis a "cloud-first" device, meaning it expects a constant connection to the Mist Cloud to receive configuration updates and report telemetry. When performing an "AP-on-a-Stick" (APoS) site survey, the AP is often powered by a battery pack and moved to various locations where an active Ethernet backhaul or Internet connection is unavailable.3To ensure the AP continues to broadcast the required SSIDs for signal measurement in this "disconnected" state, two specific settings must be adjusted within the Mist dashboard.
First,AP Config Persistencemust be enabled. By default, Mist APs store their configuration in volatile memory; if an AP reboots (which happens when switching battery packs or moving locations) and cannot reach the Mist Cloud, it may fail to reload its previous configuration. Enabling Config Persistence ensures that the AP writes its current configuration to non-volatile flash memory, allowing it to boot up and start broadcasting the programmed SSIDs even in the absence of a cloud connection.4 Second,AP Uplink Monitoringmust be disabled. Mist APs are designed with a safety mechanism where, if the AP loses its gateway connectivity (eth0 link or ping to the gateway), it will stop broadcasting SSIDs to prevent "black-holing" client traffic. In a site survey scenario, the Ethernet port is typically connected only to a battery or a passive PoE injector with no data path.5If Uplink Monitoring remains active, the AP will detect the lack of a backhaul and disable its radios, making the survey impossible. By disabling this feature, the AP is forced to keep its radios active regardless of the uplink status. Together, these two settings allow the AP to function as a standalone signal source, which is essential for accurate RF environment mapping and pre- deployment validation using Mist AI hardware.
NEW QUESTION # 17
You discover that some clients do not use all channels in the 5 GHz UNII-2 Extended frequency band and you have made the appropriate adjustments in the RF template. How do you implement these changes?
Answer: C
Explanation:
In a Juniper Mist environment, the Radio Resource Management (RRM) system is responsible for the automated allocation of channels and transmit power across all Access Points (APs) at a site. When you modify an RF Template-for example, by excluding specific UNII-2 Extended channels that certain legacy or region-specific clients cannot "see" or support-you are updating the intended policy for the network.
However, because Mist RRM is designed for stability, it does not always force an immediate, disruptive channel change across the entire site the moment a template is saved.
To force the Mist AI engine to immediately recalculate the channel plan based on your new constraints and push those settings to the APs, you use the Optimize Now button. This feature is found within the Radio Management section of the site settings or the RF template application page. When "Optimize Now" is triggered, the Mist Cloud analyzes the current RF environment, takes your new channel exclusions into account, and issues a command to the APs to switch to the most efficient channels available within the newly defined subset.
Choosing Restart the APs (C) or Restart the WLANs (B) is unnecessary and causes more downtime than required. A reboot might eventually result in a new channel selection, but it does not guarantee that the RRM algorithm has fully processed the global optimization for the site. Restarting clients (D) does nothing to change the AP's channel behavior. By using Optimize Now (A), you ensure a coordinated, AI-driven transition that minimizes "co-channel interference" while respecting the updated frequency constraints you defined to accommodate your specific client devices. This ensures that clients previously struggling with unsupported UNII-2 channels are immediately moved to compatible frequencies.
NEW QUESTION # 18
When would you choose to deploy a Juniper Mist Edge cluster instead of a single Mist Edge instance?
Answer: B
NEW QUESTION # 19
What is the primary purpose of a Pre-Shared Key (PSK) with Multi-PSK in Mist WLAN configuration?
Answer: C
Explanation:
Multi-PSK allows administrators to assign unique or group-based pre-shared keys to different users or device types on a single SSID, enabling more granular access control and easier key rotation without deploying 802.1X.
NEW QUESTION # 20
You want to measure the signal power loss that occurs after leaving the AP. In this scenario, what is the mathematical method used to accomplish this task?
Answer: C
Explanation:
Free space path loss (FSPL) is the mathematical model used to calculate the reduction in signal strength as it propagates away from the AP in free space. It quantifies how much power is lost over distance due to signal dispersion, independent of interference or noise.
NEW QUESTION # 21
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