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| Section | Weight | Objectives |
|---|---|---|
| Marvis Virtual Network Assistant | 15% | - Marvis concepts and capabilities - Proactive and reactive troubleshooting - Natural language queries and actions |
| Juniper Mist WLAN Architecture and Deployment | 20% | - Initial setup and access point deployment - Mist cloud architecture and components - Account, organization and site management - API and webhook fundamentals |
| Juniper Mist Location-Based Services | 10% | - User engagement and asset tracking - Wi-Fi and vBLE location technologies - Proximity services and analytics |
| Wi-Fi Fundamentals | 20% | - 802.11 PHY protocols - Frequency bands and RF principles - Modulation, coding and channel access - WLAN association, roaming and lifecycle |
| Juniper Mist Network Operations | 15% | - Events, alerts and insights - Monitoring and troubleshooting workflows - Radio Resource Management (RRM) - Wi-Fi Assurance and Service Level Expectations (SLE) |
| Juniper Mist WLAN Concepts | 20% | - Multi-PSK and advanced policy features - WLAN configuration and security - Wireless intrusion detection and prevention - WxLAN policies and guest services |
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NEW QUESTION # 123
According to the 802.11 standard, how wide are 2.4 GHz band OFDM channels?
Answer: B
Explanation:
Reference: https://www.cnrood.com/en/media/solutions/Wi-Fi_Overview_of_the_802.11_Physical_Layer.pdf According to the 802.11 standard, OFDM channels in the 2.4 GHz band are 20 MHz wide.
According to the Lecture 3 - Radio Frequency and Antenna Fundamentals - Part 2 document2, OFDM channels in the 2.4 GHz band are 20 MHz wide according to the 802.11 standard.
References:
http://faculty.georgebrown.ca/~jolenewa/courses/comp3049-intermediate-wirel/lecture-3-radio-frequency.
pdf
NEW QUESTION # 124
Which signal modulation scheme provides the highest data rate level for 802.11ax devices?
Answer: B
Explanation:
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.
NEW QUESTION # 125
By default, which 6 GHz channels does Juniper Mist radio resource management (RRM) use?
Answer: A
Explanation:
By default, Juniper Mist radio resource management (RRM) in the 6 GHz band uses the Preferred Scanning Channels (PSCs). These channels are standardized to optimize client scanning efficiency and reduce roaming delays in Wi-Fi 6E deployments.
NEW QUESTION # 126
You want to place specific users into specific VLANs based on user credentials.
Which WLAN feature is needed to accomplish this task?
Answer: B
Explanation:
Dynamic VLAN assignment places users into specific VLANs based on authentication attributes returned for their credentials. This allows the WLAN to assign network access policies per user or group during authentication.
NEW QUESTION # 127
What does a 3dBi antenna do to a received signal?
Answer: D
NEW QUESTION # 128
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