Which signal modulation scheme provides the highest data rate level for 802.11ax devices?
Correct Answer: C
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.
Question 87
The Marvis Actions dashboard displays a "Health Check Failed" action for a specific access point. What does this indicate? (Select all that apply.)
Correct Answer: E
Question 88
In the context of 802.1X, what is the role of the supplicant?
Correct Answer: D
Question 89
What information would be streamed through webhooks? (Choose two.)
You have four actions presented to you by Marvis. Three of these actions are found under the AP category. Upon inspecting the category, you notice that the sub-categories in the AP category contain a lock symbol so that you cannot select any of the sub-categories to view the root cause. In this scenario, which statement is correct?
Correct Answer: C
In the Juniper Mist dashboard, the Marvis Actions page serves as a centralized "proactive inbox" that identifies critical issues across the organization. However, the depth of information and the ability to interact with these findings are strictly tied to the Marvis Virtual Network Assistant (VNA) subscription. The Mist dashboard provides a basic level of visibility even without a full Marvis license, allowing administrators to see that certain high-level categories (such as AP, Switch, or Gateway) have identified issues. This is designed to demonstrate the value of the AI engine. However, when you see a lock symbol next to sub-categories or specific Marvis Actions, it indicates that the organizational account does not have an active Marvis VNA subscription for those specific devices. Without the subscription, the system will not permit the user to "drill down" into the root cause analysis, view historical event timelines, or access the specific remediation steps suggested by the AI. For example, while a standard Wi-Fi Assurance license might show that an AP is offline, the Marvis VNA subscription is what enables the detailed investigation-such as determining if the offline status is due to a cable failure, a bad PoE port on a switch, or a firmware mismatch. To unlock these features and remove the lock symbols, a SUB-VNA (Virtual Network Assistant) subscription must be applied to the access points in the site. Once licensed, Marvis can provide full "conversational AI" capabilities, allowing you to ask natural language questions about the APs and giving you the interactive tools needed to resolve the issues identified in the Actions dashboard. Therefore, the presence of the lock icon is a direct indicator of a missing or expired subscription tier required for advanced AI-driven troubleshooting.
