JN0-451 Exam Practice Questions prepared by Juniper Professionals
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The Juniper JN0-451 exam tests the candidate's understanding of Mist AI's unique features, including automated network operations, proactive troubleshooting, and anomaly detection. JN0-451 exam also covers topics such as WLAN design and configuration, user authentication and access control, and integration with third-party tools and platforms.
Juniper JN0-451 certification exam is an intermediate-level certification that tests an individual's knowledge and skills in deploying and configuring Mist AI solutions. Successful candidates will be able to demonstrate their proficiency in configuring and managing Mist AI network architecture, implementing wireless LAN design, and troubleshooting solutions. They will also be able to perform tasks such as configuring device access control and implementing device management policies.
NEW QUESTION # 38
When does a Mist AP actually begin transmitting BLE?
- A. When BLE is enabled for the AP.
- B. When it is placed on a floor plan.
- C. When it is claimed and placed on a site.
- D. When BLE is enabled at the Organization level.
Answer: A
NEW QUESTION # 39
Your customer added an Apple TV in their conference room so that employees can easily share their screen.
However, the Apple TV cannot be discovered by the employees' devices.
Which two settings are causing the problem? (Choose two.)
- A. ARP
- B. MDNS
- C. Broadcast/Multicast
- D. Ignore Broadcast SSID Probe Requests
Answer: B,C
Explanation:
Explanation
If a customer added an Apple TV in their conference room so that employees can easily share their screen but the Apple TV cannot be discovered by the employees' devices, two settings that could be causing this problem are MDNS and Broadcast/Multicast. So the correct answers are A. MDNS and B. Broadcast/Multicast.
NEW QUESTION # 40
Which Wireless Assurance SLE has classifiers of Association, Authorization, DHCP, and Internet Services?
- A. Capacity
- B. Time to Connect
- C. Coverage
- D. Roaming
Answer: B
Explanation:
Explanation
The Wireless Assurance SLE that has classifiers of Association, Authorization, DHCP, and Internet Services is Time to Connect. So the correct answer is C. Time to Connect.
NEW QUESTION # 41
Your customer added an Apple TV in their conference room so that employees can easily share their screen. However, the Apple TV cannot be discovered by the employees' devices.
Which two settings are causing the problem? (Choose two.)
- A. ARP
- B. MDNS
- C. Broadcast/Multicast
- D. Ignore Broadcast SSID Probe Requests
Answer: B,C
Explanation:
If a customer added an Apple TV in their conference room so that employees can easily share their screen but the Apple TV cannot be discovered by the employees' devices, two settings that could be causing this problem are MDNS and Broadcast/Multicast. So the correct answers are A. MDNS and B. Broadcast/Multicast.
NEW QUESTION # 42
What are basic data rates?
- A. disabled data rates
- B. required data rates
- C. optional data rates
- D. fastest data rates
Answer: B
NEW QUESTION # 43
A user with a PSK calls you and says, "The Wi-Fi worked for a week and now it does not work." There have not been any recent configuration changes to the network. You suspect that a time-based setting has reset the key.
In this scenario, where would you begin troubleshooting?
- A. Site-level Pre-Shared Keys
- B. Organization-level Pre-Shared Keys
- C. RADIUS Pre-Shared Keys
- D. WLAN-level Pre-Shared Keys
Answer: D
Explanation:
In this scenario, you would begin troubleshooting by checking the WLAN-level Pre-Shared Keys.
According to the Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide1, you can configure a time-based setting for WLAN-level Pre-Shared Keys (PSKs) that will reset the key after a specified interval. This feature is useful for enhancing security and preventing unauthorized access. If a user reports that the Wi-Fi worked for a week and now it does not work, you should check the WLAN-level PSK settings and see if the key has been changed.
NEW QUESTION # 44
Which two events are displayed under the Client Events area found on the Insights page? (Choose two.)
- A. Reassociation
- B. Restart by User
- C. Reflection (Loop Detection)
- D. DHCP Denied
Answer: A,D
Explanation:
Two events that are displayed under Client Events area found on Insights page are Reassociation and DHCP Denied. So the correct answers are A. Reassociation and D. DHCP Denied.
NEW QUESTION # 45
You receive a Marvis Actions alert informing you that there is a non-compliant AP at one of your sites.
What should you do to correct the problem?
- A. Disconnect the Rogue AP from your Ethernet switch.
- B. Request an RMA.
- C. Replace the AP with the correct hardware model.
- D. Install the correct version of firmware on the AP.
Answer: C
Explanation:
According to the Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide2, a non-compliant AP is an AP that has a different hardware model than what is expected by the cloud configuration. This can happen when an AP is replaced with an incorrect model or when an AP is moved to a different site group that has a different hardware model requirement. The solution is to replace the AP with the correct hardware model.
NEW QUESTION # 46
In which two layers of the OSI model are WLANs located? (Choose two.)
- A. Physical
- B. Data Link
- C. Transport
- D. Network
Answer: A,B
Explanation:
Reference:
According to the Lecture 3 - Radio Frequency and Antenna Fundamentals - Part 2 document2, two layers of the OSI model where WLANs are located are:
Physical, which defines how data is encoded and transmitted over the wireless medium using radio waves.
Data Link, which defines how devices access and share the wireless medium using media access control (MAC) protocols.
NEW QUESTION # 47
Regarding roaming, which device determines when it is time to connect to another AP?
- A. the primary AP
- B. the gateway router
- C. the current AP
- D. the client device
Answer: D
Explanation:
According to the Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide1, roaming is the process of moving a wireless client device from one AP to another while maintaining network connectivity. The client device determines when it is time to connect to another AP based on its own roaming algorithm and criteria.
NEW QUESTION # 48
What are two 802.11 MAC frame types? (Choose two.)
- A. control
- B. SSID
- C. BSSID
- D. management
Answer: A,D
Explanation:
Reference:
According to the Lecture 4 - MAC Layer - Part 1 document, two 802.11 MAC frame types are:
Control, which is used to coordinate access to the wireless medium and acknowledge successful transmissions.
Management, which is used to establish and maintain associations between devices and perform functions such as authentication, scanning, and roaming.
NEW QUESTION # 49
You are asked to set up occupancy analytics for an office that has an existing Mist AP.
Which three types of devices are counted by default? (Choose three.)
- A. cellular clients
- B. Wi-Fi clients
- C. mobile app clients
- D. Zigbee clients
- E. BLE assets
Answer: A,B,C
Explanation:
According to the Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide3, three types of devices that are counted by default for occupancy analytics are:
Mobile app clients, which are devices that have a mobile app installed with the Mist SDK or BLE beaconing enabled.
Cellular clients, which are devices that have cellular connectivity and can be detected by Mist APs using LTE sensing.
Wi-Fi clients, which are devices that have Wi-Fi connectivity and can be detected by Mist APs using Wi-Fi scanning.
NEW QUESTION # 50
Asset tracking using Mist-supported third-party BLE beacons has been installed in a warehouse. The BLE beacons were configured using their manufacturer-supplied configuration utility and BLE was properly configured for the site settings. When the warehouse floor plan is opened in Live View, the third-party beacons are not shown.
Which two statements describe causes for this issue? (Choose two.)
- A. Marvis was not enabled for the site.
- B. The Show assets check box has not been selected in Live View.
- C. The APs are installed at 19 feet from the floor, above the recommended 15 feet.
- D. The Locate this Client as an Asset check box has not been selected at the BLE client level.
Answer: B,D
Explanation:
Explanation
According to the Mist documentation1, asset tracking is a service that allows you to find key assets and people with detailed analytics based on their location using Mist-supported third-party BLE beacons. To enable asset tracking, you need to configure both the BLE beacons and the Mist cloud settings.
The Show assets check box is a setting in Live View that allows you to display or hide the assets on the floor plan2. If this check box is not selected, you will not be able to see the third-party beacons on Live View.
The Locate this Client as an Asset check box is a setting at the BLE client level that allows you to treat a BLE client as an asset for location purposes3. If this check box is not selected, you will not be able to track the BLE client as an asset.
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 signal strength between APs
- B. the AP's radio for a single SSID
- C. the AP's radio strength
- D. the client
Answer: D
NEW QUESTION # 52
You have deployed location services at a site and have installed an application which includes the Mist SDK on Bluetooth-only mobile client devices. The devices with the SDK-enabled app have Bluetooth enabled, but the devices do not appear in the Mist GUI under Clients/App Clients.
What is causing this problem?
- A. The AP BLE radios do not hear the SDK-enabled client's BLE beacons.
- B. The clients are connected to the wrong WLAN.
- C. The client devices are not connected to Wi-Fi or to a cellular data plan.
- D. There is BLE and Wi-Fi co-channel interference.
Answer: A
Explanation:
If Bluetooth-only mobile client devices with an SDK-enabled app do not appear in the Mist GUI under Clients/App Clients even though they have Bluetooth enabled, it could be because the AP BLE radios do not hear the SDK-enabled client's BLE beacons.
According to the Mist documentation1, Mist SDK is a software development kit that enables indoor location and proximity services using Mist's virtual Bluetooth LE (vBLE) technology. The SDK allows mobile applications to communicate with Mist APs using BLE beacons that are transmitted by the client devices.
The devices with the SDK-enabled app have Bluetooth enabled, but they do not appear in the Mist GUI under Clients/App Clients because the AP BLE radios do not hear the SDK-enabled client's BLE beacons. This could be due to various factors such as interference, distance, obstacles, or configuration issues that affect the BLE signal strength and quality.
NEW QUESTION # 53
Under which hierarchy level would you create a new site configuration?
- A. location
- B. clients
- C. access points
- D. organization
Answer: A
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.
NEW QUESTION # 54
Which two fields are required when creating a new site? (Choose two.)
- A. location
- B. RF template
- C. time zone
- D. site name
Answer: A,D
NEW QUESTION # 55
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Juniper Networks is a leading provider of networking, security, and cloud solutions to organizations worldwide. The company’s innovative products and solutions are designed to help businesses transform their networks and improve their overall performance. One of the latest Juniper certification exams is the Juniper JN0-451 (Mist AI - Specialist (JNCIS-MistAI)) Certification Exam. Mist AI - Specialist (JNCIS-MistAI) certification is designed for networking professionals who want to validate their expertise in designing and implementing Mist AI solutions.
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