Juniper JN0-452 Real 2026 Braindumps Mock Exam Dumps
JN0-452 Exam Questions | Real JN0-452 Practice Dumps
NEW QUESTION # 39
Which Juniper AP is used to augment BLE coverage?
- A. AP12
- B. AP343
- C. BT111
- D. AP242
Answer: C
Explanation:
In the Juniper Mist AI product portfolio, the BT11 is a specialized, enterprise-grade access point designed exclusively for Bluetooth Low Energy (BLE).4 Unlike the other access points in the Juniper Mist family (such as the AP12, AP24, and AP34), the BT11 does not contain Wi-Fi radios.5 Its sole purpose is to provide high-accuracy, enterprise-grade location-based services (LBS) by leveraging Juniper's patented 16- element virtual BLE (vBLE) antenna array.6 The primary use case for the BT11 is to augment BLE coverage in environments where Wi-Fi connectivity is already established by other APs, but the density of those APs is insufficient for precise location services.
For applications like turn-by-turn wayfinding or asset tracking, the RF requirements for BLE are often more stringent than those for Wi-Fi. A facility might have enough Wi-Fi APs to provide data coverage, but may have "location holes" where the BLE signals are too sparse for 1-3 meter accuracy. By deploying BT11 units in these gaps, administrators can extend the reach of the location engine without the expense of adding full- featured Wi-Fi radios where additional capacity is not needed.7 The BT11 communicates directly with the Mist Cloud to manage virtual beacons, which eliminate the need for physical, battery-powered beacons and manual calibration.8 Because it runs on Power over Ethernet (PoE) and integrates seamlessly with the Mist AI engine, it provides a scalable and cost-effective way to ensure continuous, high-fidelity BLE coverage across a campus, hospital, or retail floor.
NEW QUESTION # 40
An administrator needs to configure a redundant and load-balanced tunneled wireless solution for a large campus that spans multiple buildings. The design requires that APs in one building (`Site- A`) prefer to tunnel to a Mist Edge in that same building, while APs in another building (`Site-B`) prefer to tunnel to a different Mist Edge in their building. However, if an Edge in one building fails, APs should be able to fail over to the Edge in the other building.
How should this be designed using the Mist architecture? (Select all that apply.)
- A. Create one Mist Cluster for Site-A's Edge and a separate Mist Cluster for Site-B's Edge.
- B. Use anchor tunneling between the two Mist Edge appliances.
- C. Place all Mist Edge appliances into a single organization-level cluster.
- D. Configure two Mist Tunnels. Tunnel-A will have Site-A-Cluster as primary and Site-B-Cluster as secondary. Tunnel-B will have the reverse.
- E. Create a Device Profile for Site-A APs that applies Tunnel-A.
- F. Create a Device Profile for Site-B APs that applies Tunnel-B.
Answer: A,D,E,F
NEW QUESTION # 41
Some users cannot connect to the network. You want to identify these users. In Marvis, which query accomplishes this task?
- A. troubleshoot clients
- B. unhappy clients
- C. list clients
- D. troubleshoot access points
Answer: B
Explanation:
According to the Marvis - Mist document, unhappy clients is a query that can be used in Marvis to identify users who cannot connect to the network. Unhappy clients shows a list of clients who have experienced poor service level expectations (SLEs) such as connection failures, coverage issues, or low throughput.
References: https://www.mist.com/documentation/marvis/
NEW QUESTION # 42
Regarding the seven-layer OSI networking model, which two layers are different between Ethernet and Wi-Fi? (Choose two.)
- A. network layer
- B. physical layer
- C. logical link control (LLC) sub-layer
- D. media access control (MAC) sub-layer
Answer: B,D
NEW QUESTION # 43
You are asked to forward event messages from Mist to an external log collector.
In this scenario, which feature would enable this capability?
- A. SNMP traps
- B. webhooks
- C. syslog
- D. NETCONF
Answer: C
Explanation:
Syslog is a protocol that can be used to forward event messages from Mist to an external log collector.
According to the Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide1, syslog is a feature that enables forwarding event messages from Mist to an external log collector. Syslog messages can be sent over UDP or TCP protocols.
References: https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-2/config-guide/b_wl_17_2_cg
/syslog.html
NEW QUESTION # 44
Click the Exhibit button.
Referring to the exhibit, what is the meaning of the AI VALIDATED status update?
- A. The issue was opened and Marvis has closed it.
- B. The issue was opened and is unresolved.
- C. The issue was opened and closed manually.
- D. The issue was opened and Marvis confirms it has been closed.
Answer: A
NEW QUESTION # 45
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.)
- A. Marvis Actions
- B. Marvis Minis
- C. Marvis Query Language
- D. Marvis Virtual Network Assistant
Answer: C,D
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 # 46
An administrator is reviewing the floorplan for a new office deployment. The goal is to provide accurate indoor location services for wayfinding.
The administrator has already scaled the floorplan correctly.
Floorplan AP Settings:
AP-Lobby-01:
Height: 3 meters
Orientation: 0 degrees
AP-Lobby-02:
Height: Not set
Orientation: 0 degrees
AP-Lobby-03:
Height: 3 meters
Orientation: Not set
Which two APs are misconfigured and will cause location accuracy issues? (Choose 2.)
- A. AP-Lobby-01
- B. AP-Lobby-03
- C. All APs are configured correctly.
- D. AP-Lobby-02
Answer: B,D
NEW QUESTION # 47
What happens first when a client requests to join a WLAN?
- A. 802.11 association
- B. 802. 11 authentication
- C. ARP request
- D. DHCP discovery
Answer: B
Explanation:
Reference: https://netbeez.net/blog/how-wifi-connection-works/
NEW QUESTION # 48
Which Marvis query would an administrator use to identify the wireless clients that have experienced the most connection problems within the last 24 hours?
- A. LIST clients for last 24 hours
- B. SHOW client health for last 24 hours
- C. TROUBLESHOOT clients for last 24 hours
- D. RANK clients by event count for last 24 hours
Answer: D
NEW QUESTION # 49
When configuring a guest WLAN with an external captive portal, you need to ensure that the unauthenticated clients can reach the portal's servers before they log in.
What Mist feature enables this?
- A. Marvis Actions
- B. The "Allowed Hostnames" or "Allowed Subnets" list in the WLAN configuration.
- C. RF Templates
- D. Device Profiles
Answer: B
NEW QUESTION # 50
Click the Exhibit button.
Referring to the exhibit, as part of the Throughput SLE in the Mist UI, the Coverage classifier indicates the signal strength of which device?
- A. the client
- B. the AP's radio for a single SSID
- C. the AP's radio strength
- D. the signal strength between APs
Answer: A
Explanation:
As part of the Throughput SLE in the Mist UI, the Coverage classifier indicates the signal strength of the client.
NEW QUESTION # 51
Click the Exhibit button.
Referring to the exhibit, as part of the Throughput SLE in the Mist UI, the Coverage classifier indicates the signal strength of which device?
- A. the client
- B. the AP's radio for a single SSID
- C. the AP's radio strength
- D. the signal strength between APs
Answer: A
NEW QUESTION # 52
A client calls you to troubleshoot possible interference with your wireless network. Before you drive to the customer's site to investigate, you want to quickly verify if there is actually any interference at all. In this scenario, which SLE is responsible for this interference?
- A. throughput
- B. coverage
- C. roaming
- D. capacity
Answer: D
Explanation:
In the Juniper Mist AI ecosystem,Service Level Expectations (SLEs)provide a proactive way to monitor the health of a wireless network from the perspective of the end-user. When investigating potential interference- whether it is from neighboring Wi-Fi networks or non-Wi-Fi sources like microwaves or motion sensors-the Capacity SLEis the primary metric to analyze. While interference certainly impacts the overallThroughput SLE, Mist categorizes the specific environmental factors that limit airtime availability under the "Capacity" umbrella.
The Capacity SLE tracks "user minutes" during which a client experiences a drop in available RF channel capacity. It is specifically designed to identify why a client might be struggling to transmit data despite having a strong signal. Within the Capacity SLE block, Mist provides granularclassifiersthat pinpoint the root cause of the capacity degradation. These classifiers include:
* Wi-Fi Interference:This identifies airtime contention caused by other 802.11 networks (Co-Channel Interference or Adjacent Channel Interference).
* Non-Wi-Fi Interference:This identifies energy from non-802.11 sources detected by the AP's dedicated scanning radio.
* Client Count:High density leading to contention.
* Client Usage:A single "bandwidth hog" consuming the available airtime.
By checking the Capacity SLE in the Mist dashboard before heading to a site, an administrator can see a historical timeline of interference events. If the "Wi-Fi Interference" or "Non-Wi-Fi Interference" classifiers show a high percentage of "Bad User Minutes," the administrator can confirm that the client's complaint is indeed valid. This allows for remote troubleshooting and may even enable the admin to resolve the issue by adjusting Radio Resource Management (RRM) settings or identifying a specific rogue device, potentially saving an unnecessary truck roll.
NEW QUESTION # 53
A dynamic packet capture (dPCAP) is automatically triggered by the Mist system.
What is the most likely reason for this?
- A. A major network anomaly, such as a persistent authorization failure for a client, was detected.
- B. The AP has been offline for more than 10 minutes.
- C. The administrator manually requested a packet capture on an AP.
- D. A new client device has connected to the network for the first time.
Answer: A
NEW QUESTION # 54
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