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JN0-251 Practice Test Free

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  • JN0-251 Practice Test Free – 50 Real Exam Questions to Boost Your Confidence
  • Free Access Full JN0-251 Practice Test Free Questions

JN0-251 Practice Test Free – 50 Real Exam Questions to Boost Your Confidence

Preparing for the JN0-251 exam? Start with our JN0-251 Practice Test Free – a set of 50 high-quality, exam-style questions crafted to help you assess your knowledge and improve your chances of passing on the first try.

Taking a JN0-251 practice test free is one of the smartest ways to:

  • Get familiar with the real exam format and question types
  • Evaluate your strengths and spot knowledge gaps
  • Gain the confidence you need to succeed on exam day

Below, you will find 50 free JN0-251 practice questions to help you prepare for the exam. These questions are designed to reflect the real exam structure and difficulty level. You can click on each Question to explore the details.

Question 1

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

 


Suggested Answer: D

Community Answer: D

 

Question 2

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

 


Suggested Answer: C

Community Answer: C

 

Question 3

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.

 


Suggested Answer: B

Community Answer: A

 

Question 4

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.

 


Suggested Answer: AD

Community Answer: AD

 

Question 5

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

 


Suggested Answer: BD

Community Answer: BD

 

Question 6

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

 


Suggested Answer: A

Community Answer: A

 

Question 7

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

 


Suggested Answer: A

Community Answer: A

 

Question 8

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

 


Suggested Answer: CD

Community Answer: CD

 

Question 9

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.

 


Suggested Answer: BC

Community Answer: BC

 

Question 10

Which device categories are included in WAN Assurance? (Choose two.)

A. EX

B. Mist Edge

C. SSR

D. SRX

 


Suggested Answer: CD

Community Answer: CD

 

Question 11

Click the Exhibit button.
 Image
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.

 


Suggested Answer: B

Community Answer: B

 

Question 12

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.

 


Suggested Answer: D

Community Answer: C

 

Question 13

Where in the Mist UI would the Persistently Failing Clients report be found?

A. Alerts

B. Marvis Actions

C. Successful Connects SLE

D. Insights

 


Suggested Answer: B

Community Answer: B

 

Question 14

Which location mode is required to track BLE badges?

A. wayfinding

B. BLE asset visibility

C. Wi-Fi location

D. vBLE Engagement

 


Suggested Answer: B

Community Answer: B

 

Question 15

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

 


Suggested Answer: AB

Community Answer: AB

 

Question 16

Click the Exhibit button.
 Image
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

 


Suggested Answer: A

Community Answer: A

 

Question 17

You want to obtain detailed information on a wireless client.
In this scenario, which area would you use to accomplish this task?

A. Insights

B. Templates

C. SLEs

D. Security

 


Suggested Answer: A

Community Answer: A

 

Question 18

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

 


Suggested Answer: BC

Community Answer: BC

 

Question 19

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

 


Suggested Answer: B

Community Answer: B

 

Question 20

In which two Mist configuration levels would you create labels? (Choose two.)

A. site

B. organization

C. switch

D. location

 


Suggested Answer: AB

Community Answer: AB

 

Question 21

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

 


Suggested Answer: BC

Community Answer: BD

 

Question 22

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.

 


Suggested Answer: C

Community Answer: D

 

Question 23

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

 


Suggested Answer: B

Community Answer: B

 

Question 24

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

 


Suggested Answer: C

Community Answer: C

 

Question 25

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

 


Suggested Answer: C

Community Answer: C

 

Question 26

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

 


Suggested Answer: A

Community Answer: A

 

Question 27

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

 


Suggested Answer: C

Community Answer: C

 

Question 28

Mist Insights will provide detailed information about which two categories? (Choose two.)

A. AP

B. Client

C. Organization

D. Templates

 


Suggested Answer: AB

Community Answer: AB

 

Question 29

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.

 


Suggested Answer: AB

Community Answer: AB

 

Question 30

What is a feature within Mist AI that uses unsupervised machine learning?

A. vBLE engagement

B. Insights

C. Service Level Expectations

D. Alerting

 


Suggested Answer: B

Community Answer: A

 

Question 31

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.

 


Suggested Answer: C

Community Answer: A

 

Question 32

Which two statements are correct about label configuration? (Choose two.)

A. Labels created at the organization level can be used in WLAN templates.

B. Labels can only be created at the organization level.

C. Labels can be created at either the organization level or site level.

D. Labels created at the site level can be applied at the organization level.

 


Suggested Answer: AC

 

Question 33

What are three alert levels used in the Mist UI? (Choose three.)

A. critical

B. warning

C. error

D. notice

E. informational

 


Suggested Answer: ABE

Community Answer: ABE

 

Question 34

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

 


Suggested Answer: C

Community Answer: C

 

Question 35

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

 


Suggested Answer: D

Community Answer: D

 

Question 36

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

 


Suggested Answer: D

Community Answer: B

 

Question 37

Which two SLEs report DHCP problems? (Choose two.)

A. Successful Connects

B. Time to Connect

C. Capacity

D. Throughput

 


Suggested Answer: AB

Community Answer: AB

 

Question 38

Which Mist location-based feature would be used for wayfinding?

A. Wi-Fi 6

B. Asset Visibility

C. vBLE Engagement

D. Wi-Fi Location

 


Suggested Answer: C

Community Answer: C

 

Question 39

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

 


Suggested Answer: D

Community Answer: D

 

Question 40

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

 


Suggested Answer: AB

Community Answer: AB

 

Question 41

You are inviting a new administrator into a Mist organization.
In this scenario, which two roles are valid? (Choose two.)

A. Helpdesk

B. Standard

C. Network Admin

D. System Admin

 


Suggested Answer: AC

Community Answer: AC

 

Question 42

What are two valid Mist subscription status states in the Mist GUI? (Choose two.)

A. Expired

B. Perpetual

C. Staged

D. Exceeded

 


Suggested Answer: AD

Community Answer: AD

 

Question 43

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.

 


Suggested Answer: B

Community Answer: B

 

Question 44

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

 


Suggested Answer: D

Community Answer: D

 

Question 45

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.

 


Suggested Answer: AB

Community Answer: AB

 

Question 46

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

 


Suggested Answer: BC

Community Answer: BC

 

Question 47

Which administrator role must you have to view audit logs?

A. Installer

B. Network Admin

C. Super User

D. Observer

 


Suggested Answer: B

Community Answer: B

 

Question 48

Which protocol does the REST API use?

A. syslog

B. SNMP

C. HTTP

D. SSL

 


Suggested Answer: C

Community Answer: C

 

Question 49

Which protocol is used by Mist access points to discover third-party switches?

A. LLDP

B. SNMP

C. CDP

D. ICMP

 


Suggested Answer: A

Community Answer: A

 

Question 50

A Mist mesh network supports up to how many hops?

A. 1 hop

B. 2 hops

C. 3 hops

D. 4 hops

 


Suggested Answer: A

Community Answer: A

 

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Good luck with your JN0-251 certification journey!

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