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| Section | Weight | Objectives |
|---|---|---|
| Juniper Mist WLAN Concepts | 20% | - Wireless intrusion detection and prevention - WxLAN policies and guest services - Multi-PSK and advanced policy features - WLAN configuration and security |
| Juniper Mist Network Operations | 15% | - Radio Resource Management (RRM) - Wi-Fi Assurance and Service Level Expectations (SLE) - Monitoring and troubleshooting workflows - Events, alerts and insights |
| Marvis Virtual Network Assistant | 15% | - Marvis concepts and capabilities - Proactive and reactive troubleshooting - Natural language queries and actions |
| Wi-Fi Fundamentals | 20% | - Frequency bands and RF principles - Modulation, coding and channel access - WLAN association, roaming and lifecycle - 802.11 PHY protocols |
| Juniper Mist Location-Based Services | 10% | - Wi-Fi and vBLE location technologies - User engagement and asset tracking - Proximity services and analytics |
| Juniper Mist WLAN Architecture and Deployment | 20% | - Initial setup and access point deployment - API and webhook fundamentals - Account, organization and site management - Mist cloud architecture and components |
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NEW QUESTION # 100
Under which hierarchy level would you create a new site configuration?
Answer: C
Explanation:
According to the Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide2, you can create a new site configuration under the location hierarchy level in the Juniper Mist UI. A site is a logical grouping of devices based on physical location or other criteria.
References: https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-2/config-guide/b_wl_17_2_cg
/sites.html
NEW QUESTION # 101
What are two defining characteristics of Wi-Fi as a shared, half-duplex medium? (Choose 2.)
Answer: A,B
NEW QUESTION # 102
You want to review the roaming activity of a specific wireless client. In this scenario, which two Marvis features would you use to accomplish this task? (Choose two.)
Answer: A,B
Explanation:
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.
NEW QUESTION # 103
Which signal modulation scheme provides the highest data rate level for 802.11ax devices?
Answer: D
Explanation:
InJuniper 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 encodes10 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 achievehigher peak throughput, especially in environments with excellent signal quality. However, 1024-QAM requiresvery 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-QAMand256-QAMare valid modulation schemes but do not provide the highest data rates in 802.11 ax.
* 4096-QAMis not supported by the 802.11ax standard and is therefore invalid.
Thus,1024-QAMis the modulation scheme that provides thehighest data rate level for 802.11ax devices.
NEW QUESTION # 104
The roaming service-level expectation (SLE) shows an 81% success rate, but the line graph has gaps in the data. As the wireless network administrator, you have not heard any comments about the network, good or bad. In this scenario, why are there gaps in the roaming SLE line graph?
Answer: A
Explanation:
Gaps in the roaming SLE line graph indicate that no roaming events took place during those periods. Since SLEs are calculated based on client events, the absence of roaming activity results in no data points being plotted, not in a failure.
NEW QUESTION # 105
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