JN0-452 JNCIS-MistAI-Wireless Practice Questions
Prepare for JN0-452 with more than an answer.
- 1
You are configuring a new WLAN for a high-density auditorium. You want to ensure that management frames are protected to prevent de-authentication attacks. Which security standard should you enable in the WLAN configuration?
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Correct answer: C
802.11w is the standard for Protected Management Frames (PMF). It encrypts management frames (like de-auth and disassociate) to prevent attackers from spoofing them and disconnecting clients.
- 2
Which Marvis Action typically suggests that a VLAN is missing from a switch port connected to an AP?
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Correct answer: A
The 'Missing VLAN' action in Marvis specifically identifies scenarios where clients are attempting to associate with a WLAN mapped to a specific VLAN, but the AP's uplink port fails to pass traffic for that VLAN (e.g., ARP fails consistently for that VLAN only).
- 3
A deployment uses Mist Edge for tunneling guest traffic from branch sites to a DMZ in the data center. Which of the following best describes the data plane flow for a guest user at a branch site?
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Correct answer: B
Mist Edge acts as a tunnel terminator. The AP at the branch forms a tunnel (typically L2TPv3 over IPsec or similar) to the Mist Edge appliance. The user traffic remains encapsulated until it reaches the Mist Edge, where it is decapsulated into the DMZ network.
- 4
A university campus is deploying Juniper Mist APs across 50 buildings. The network architect wants to ensure that specific RF settings for the lecture halls differ from the dormitories, but both site types share the same SSID configurations and authentication servers. Which configuration hierarchy strategy best achieves this with minimal administrative overhead?
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Correct answer: C
In Juniper Mist, Configuration Templates are best used for shared settings like WLANs and Policies. Device Profiles (or RF templates applied at the device/site level) allow for hardware-specific or environment-specific RF settings (channel width, power) without duplicating the logical network configuration.
- 5
While analyzing the 'Time to Connect' Service Level Expectation (SLE), an administrator notices a low success rate. The Classifiers section indicates that 'DHCP' is the primary contributor to the failure. When drilling down into the sub-classifiers, 'Stuck' is the dominant state. What does this specific combination indicate about the network environment?
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Correct answer: D
In Mist SLE terminology, a 'Stuck' state under the DHCP classifier typically means the transaction is incomplete; specifically, the AP sees the client's Discover/Request but does not see the Server's Offer/Ack. This points to an upstream network issue or server unresponsiveness, rather than a NAK (which would be a negative response).
- 6
A retail customer wants to implement a guest Wi-Fi portal that requires users to watch a 30-second video advertisement before gaining internet access. They also need to collect the user's email address. Which configuration approach within the Juniper Mist portal settings supports this requirement?
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Correct answer: C
While Mist's internal portal provides robust basic features (social login, SMS, email collection), complex workflows like mandatory video completion triggers usually require an External Portal integration. The external server hosts the content and logic, then authenticates the client via Mist API upon completion.
