JN0-251 Dump Free – 50 Practice Questions to Sharpen Your Exam Readiness.
Looking for a reliable way to prepare for your JN0-251 certification? Our JN0-251 Dump Free includes 50 exam-style practice questions designed to reflect real test scenarios—helping you study smarter and pass with confidence.
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- Understand the format and types of questions you’ll face
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- Boost your confidence with realistic question practice
Below, you will find 50 free questions from our JN0-251 Dump Free collection. These cover key topics and are structured to simulate the difficulty level of the real exam, making them a valuable tool for review or final prep.
Which two types of location-based services does Mist offer? (Choose two.)
A. GPS location
B. Wi-Fi location
C. BLE location
D. UWB location
Which two categories are included in the Connectivity Marvis Action? (Choose two.)
A. Offline AP
B. Bad Cable
C. ARP Failure
D. DNS Failure
What is the recommended minimum number of APs that should have line of sight (LoS) for a device that uses Wi-Fi location-based services?
A. 5
B. 6
C. 3
D. 4
Mist has detected a bad cable. What are two ways that Marvis determined this result? (Choose two.)
A. It identified network loops.
B. It identified port flapping.
C. It identified interface errors.
D. It identified a missing VLAN.
What are two valid Mist subscription status states in the Mist GUI? (Choose two.)
A. Expired
B. Perpetual
C. Staged
D. Exceeded
You just received the newest Mist AP and want to enable a feature that is only available at this time on Release Candidate 1. In this scenario, using the Mist GUI, where would you determine which version of Release Candidate 1 is available for your AP?
A. Support Tickets and Documentation -> Feature Updates
B. Support Tickets and Documentation -> Ports & Endpoints
C. Support Tickets and Documentation -> Mist Edge Updates
D. Support Tickets and Documentation -> Firmware Updates
Which two statements are correct about creating Mist sites? (Choose two.)
A. A Mist site can only belong to a single organization.
B. You can create and manage multiple sites with a Mist account.
C. You can only create and manage a single site with a Mist account.
D. A Mist site can belong to multiple organizations.
Which two methods are supported for configuring a Mist environment? (Choose two.)
A. Use the API.
B. Use the GUI.
C. Use the CLI.
D. Use NETCONF.
You are inviting a new administrator into a Mist organization. In this scenario, which two roles are valid? (Choose two.)
A. Advanced
B. Observer
C. Installer
D. Custom
A Mist mesh network supports up to how many hops?
A. 1 hop
B. 2 hops
C. 3 hops
D. 4 hops
Which two statements are correct about an Organization ID? (Choose two.)
A. The Organization ID is randomly created by the system.
B. The Organization ID is used to identify the organization when using APIs.
C. The Organization ID is the encrypted version of the Organization Name field.
D. The Organization ID is manually defined by the user.
Which protocol is used by Mist access points to discover third-party switches?
A. LLDP
B. SNMP
C. CDP
D. ICMP
What is a feature within Mist AI that uses unsupervised machine learning?
A. vBLE engagement
B. Insights
C. Service Level Expectations
D. Alerting
What is an advantage of using the Juniper Mist cloud compared to traditional on-premises WLAN controllers?
A. The ability to configure Mist cloud using any connected AP.
B. More robust AP encryption occurs.
C. Machine learning occurs through microservices.
D. Mist updates occur daily.
What are two prerequisites for adopting Juniper switches for Wired Assurance? (Choose two.)
A. a claim code
B. a Wired Assurance license
C. an activation code
D. an account on manage.mist.com
Which administrator role must you have to view audit logs?
A. Installer
B. Network Admin
C. Super User
D. Observer
You created a Hostname organizational label. Where would you apply this label?
A. site policy
B. preshared key
C. WLAN template policy
D. device profile
Which Mist AI feature would help you to troubleshoot a client’s failed authentication?
A. client dashboard
B. live view
C. dynamic packet capture
D. WLAN profile
Which Marvis Action category will detect a bad cable based on information and behavior of a single AP?
A. AP
B. Connectivity
C. Layer 1
D. Switch
In a Mist deployment, the Radio Resource Management feature is an example of which type of machine learning?
A. visual learning
B. reinforcement learning
C. unsupervised learning
D. supervised learning
Which statement is correct about Mist AP packet capture?
A. You can configure a wired or wireless packet capture manually.
B. You can only configure wired packet captures manually.
C. You can only trigger wired or wireless packet captures dynamically.
D. You can only configure wireless packet captures manually.
vBLE engagement works on transmit mode and has 1 m to 3 m accuracy using which feature?
A. Wi-Fi IoT sensors
B. a BLE radio
C. Wi-Fi enabled devices
D. the Mist location SDK
Mist cloud supports single sign-on in which two scenarios? (Choose two.)
A. account login used for NETCONF
B. Wi-Fi guest login access
C. account login used for the RESTful API
D. admin login to the Mist portal
What are three alert levels used in the Mist UI? (Choose three.)
A. critical
B. warning
C. error
D. notice
E. informational
Which statement defines the total user minutes?
A. The total number of minutes for which Mist has statistics for each client.
B. The total number of minutes between a client’s last association and disassociation.
C. The total amount of device uptime over the last seven days.
D. The average number of minutes that all clients have been associated to the network.
Which feature of Mist AI displays real-time packet information in the UI?
A. Client Events
B. Local PCAP
C. Dynamic PCAP
D. Streaming PCAP
How should APs be deployed for location-based services (LBS)?
A. with the LED facing the floor
B. with the LED facing the ceiling
C. with the LED facing a wall
D. with the AP mounted on a wall
Which Mist location-based feature would be used for wayfinding?
A. Wi-Fi 6
B. Asset Visibility
C. vBLE Engagement
D. Wi-Fi Location
You want to review client information about a specific AP. In this scenario, where in the UI would you look?
A. Access Points
B. AP Insights
C. Client Insights
D. SLEs
In the Mist Access Point portfolio, which dedicated device would be used in location-based services (LBS)?
A. AP34
B. AP32
C. BT11
D. AP12
The status of user authentication will affect which pair of SLEs?
A. Successful Connects and Time to Connect
B. Coverage and Roaming
C. Capacity and Successful Connects
D. Time to Connect and Throughput
You want to determine where you have coverage issues in your network using Marvis Actions. Which Marvis Action category should you use in this situation?
A. Connectivity
B. Application
C. Clients
D. AP
The Mist help menu provides direct access to which two features? (Choose two.)
A. hardware updates
B. company updates
C. feature updates
D. firmware updates
You are using the autoprovisioning feature to assign a name to an AP using the AP Name Generation option. In this scenario, from where is the name derived?
A. from the LLDP port description on the switch
B. from the AP model designation
C. from a pre-loaded CSV file
D. from the AP’s MAC address
What is the minimum administrator role needed to invite a user to be an administrator of an organization?
A. network admin
B. installer
C. helpdesk
D. super user
Alert templates are assigned to sites in which area of the Mist GUI?
A. Organization Settings
B. Alert Template Configuration
C. Site Group
D. Site Configuration
Which Mist supported API is considered data-driven?
A. RESTful
B. Webhook
C. WebSocket
D. gRPC
What are two requirements to successfully provision a Juniper EX Series switch into Mist? (Choose two.)
A. outbound TCP 2200 access
B. Internet connectivity
C. static IP
D. inbound TCP 443 access
Where in the Mist UI would the Persistently Failing Clients report be found?
A. Alerts
B. Marvis Actions
C. Successful Connects SLE
D. Insights
Click the Exhibit button.Referring to the exhibit, which Marvis language would you use to query Mist about an issue?
A. natural language
B. SQL
C. Python
D. query language
Which two SLEs report DHCP problems? (Choose two.)
A. Successful Connects
B. Time to Connect
C. Capacity
D. Throughput
Which protocol does the REST API use?
A. syslog
B. SNMP
C. HTTP
D. SSL
Referring to the exhibit, what is indicated by the arrow?
A. This is the first time the problem is seen.
B. This problem has already been flagged.
C. The issue is on-going.
D. There is a dynamic PCAP file.
What does Mist with Wi-Fi Assurance do to detect a bad cable connected to an AP?
A. It monitors SNMP trap information.
B. It performs cable tests.
C. It sends probe traffic through the cable connections.
D. It applies machine learning to telemetry data.
How does Mist detect rogue APs?
A. by using the AP’s 2.4 GHz radio band
B. by using Radio Resource Management (RRM)
C. by using the AP’s third dedicated radio
D. by using the AP’s 5 GHz radio band
In a production network, what are two types of security threats? (Choose two.)
A. rogue AP
B. honeypot AP
C. scanning radio
D. neighbor AP
What is a Mist Coverage SLE based upon?
A. an average of client data
B. a summary of switch data
C. a summary of user minutes
D. an average across APs
Besides providing AP configuration status, for which other purpose is the LED used in the location design phase?
A. height orientation
B. channels in use
C. frequency selection
D. antenna orientation
Which two Mist-supported APIs are considered event-driven? (Choose two.)
A. RESTful
B. gRPC
C. WebSocket
D. Webhook
Which two statements are correct when managing switches located in a Mist-managed site? (Choose two.)
A. The site firewall must allow communications from the switch to Mist.
B. A switch template must be assigned to the site.
C. The site must have Mist access points.
D. The switch must be assigned to the site.
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