JN0-251 Exam Prep Free – 50 Practice Questions to Get You Ready for Exam Day
Getting ready for the JN0-251 certification? Our JN0-251 Exam Prep Free resource includes 50 exam-style questions designed to help you practice effectively and feel confident on test day
Effective JN0-251 exam prep free is the key to success. With our free practice questions, you can:
- Get familiar with exam format and question style
- Identify which topics you’ve mastered—and which need more review
- Boost your confidence and reduce exam anxiety
Below, you will find 50 realistic JN0-251 Exam Prep Free questions that cover key exam topics. These questions are designed to reflect the structure and challenge level of the actual exam, making them perfect for your study routine.
A user device sends signal information to the Mist Location Engine. In this scenario, what is expected from the Mist Location Engine?
A. product advertisements
B. coordinates
C. sensor device information
D. login splash page
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
Which two APIs are supported by Mist? (Choose two.)
A. SOAP
B. gRPC
C. Webhook
D. REST
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
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
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 protocol is used by Mist access points to discover third-party switches?
A. LLDP
B. SNMP
C. CDP
D. ICMP
Which location mode is required to track BLE badges?
A. wayfinding
B. BLE asset visibility
C. Wi-Fi location
D. vBLE Engagement
Which Mist location-based feature would be used for wayfinding?
A. Wi-Fi 6
B. Asset Visibility
C. vBLE Engagement
D. Wi-Fi Location
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.
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
What is a feature within Mist AI that uses unsupervised machine learning?
A. vBLE engagement
B. Insights
C. Service Level Expectations
D. Alerting
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.
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
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.
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 administrator role is based on a timed grace period for Mist site and AP configuration access?
A. Observer
B. Network Admin
C. Installer
D. Helpdesk
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
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
Which two statements are correct about the Installer role? (Choose two.)
A. The Installer role can use Mist APIs.
B. The Installer role can invite other users as administrators.
C. The Installer role has limited access to the organization.
D. The Installer role can unclaim the AP from the organization.
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 administrator role must you have to view audit logs?
A. Installer
B. Network Admin
C. Super User
D. Observer
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
A user called a help desk to report a Wi-Fi issue. In this scenario, what information must be provided for Marvis to troubleshoot the issue? (Choose two.)
A. user home address
B. the MAC address of the client device
C. the time of the incident
D. the access point to which the client was connected
Mist Insights will provide detailed information about which two categories? (Choose two.)
A. AP
B. Client
C. Organization
D. Templates
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
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
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
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
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 are two requirements for vBLE Engagement? (Choose two.)
A. Mist APs with built-in BLE arrays
B. a mobile app running the Mist location SDK
C. battery power beacons
D. BLE asset tags
You are asked to invite a new user to administer specific sites in read-only mode. Which two roles are available to the new user? (Choose two.)
A. Helpdesk
B. Installer
C. Network Admin
D. Observer
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 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 types of location-based services does Mist offer? (Choose two.)
A. GPS location
B. Wi-Fi location
C. BLE location
D. UWB location
Click the Exhibit button.You notice a green LED emitted from your AP43. Referring to the exhibit, what does this signal indicate?
A. The AP is configured correctly and at least one user is connected to it.
B. The AP is configured correctly with no users connected to it.
C. The AP is not configured correctly with no users connected to it.
D. The AP is not configured correctly but one user is connected to it.
Which statement is correct about Mist SLEs?
A. A Mist classifier is comprised of multiple SLEs.
B. A Mist SLE is comprised of multiple classifiers.
C. A Mist classifier is comprised of a single SLE.
D. A Mist SLE is comprised of a single classifier.
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
Which two Mist-supported APIs are considered event-driven? (Choose two.)
A. RESTful
B. gRPC
C. WebSocket
D. Webhook
Which device categories are included in WAN Assurance? (Choose two.)
A. EX
B. Mist Edge
C. SSR
D. SRX
What are three alert levels used in the Mist UI? (Choose three.)
A. critical
B. warning
C. error
D. notice
E. informational
Where in the Mist UI would the Persistently Failing Clients report be found?
A. Alerts
B. Marvis Actions
C. Successful Connects SLE
D. Insights
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.
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.
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
A Mist mesh network supports up to how many hops?
A. 1 hop
B. 2 hops
C. 3 hops
D. 4 hops
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
What happens when Mist subscriptions expire?
A. Devices retain their configurations but the Mist user is prevented from accessing the Mist management GUI.
B. Devices retain their configurations and all Mist management GUI functionality remains available to the user.
C. Devices retain their configurations but Mist management GUI functionality related to expired subscriptions are not configurable by the user.
D. Devices retain their configurations for 90 days; if the subscriptions are not renewed, the configuration is deleted and the devices are reset to factory default.
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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