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JN0-251 Mock Test Free

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  • JN0-251 Mock Test Free – 50 Realistic Questions to Prepare with Confidence.
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JN0-251 Mock Test Free – 50 Realistic Questions to Prepare with Confidence.

Getting ready for your JN0-251 certification exam? Start your preparation the smart way with our JN0-251 Mock Test Free – a carefully crafted set of 50 realistic, exam-style questions to help you practice effectively and boost your confidence.

Using a mock test free for JN0-251 exam is one of the best ways to:

  • Familiarize yourself with the actual exam format and question style
  • Identify areas where you need more review
  • Strengthen your time management and test-taking strategy

Below, you will find 50 free questions from our JN0-251 Mock Test Free resource. These questions are structured to reflect the real exam’s difficulty and content areas, helping you assess your readiness accurately.

Question 1

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

 


Suggested Answer: AD

Community Answer: AD

 

Question 2

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 3

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 4

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 5

Which protocol does the REST API use?

A. syslog

B. SNMP

C. HTTP

D. SSL

 


Suggested Answer: C

Community Answer: C

 

Question 6

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 7

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 8

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

 


Suggested Answer: B

Community Answer: D

 

Question 9

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 10

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 11

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 12

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.

 


Suggested Answer: AB

Community Answer: AB

 

Question 13

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 14

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 15

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 16

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

 


Suggested Answer: C

Community Answer: C

 

Question 17

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

 

Question 18

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 19

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

 


Suggested Answer: C

Community Answer: C

 

Question 20

Which two categories are included in the Connectivity Marvis Action? (Choose two.)

A. Offline AP

B. Bad Cable

C. ARP Failure

D. DNS Failure

 


Suggested Answer: CD

Community Answer: CD

 

Question 21

Which two Mist-supported APIs are considered event-driven? (Choose two.)

A. RESTful

B. gRPC

C. WebSocket

D. Webhook

 


Suggested Answer: CD

 

Question 22

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 23

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 24

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 25

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.

 


Suggested Answer: AC

Community Answer: AC

 

Question 26

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 27

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 28

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 29

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 30

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 31

Image
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.

 


Suggested Answer: D

Community Answer: D

 

Question 32

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 33

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 34

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 35

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 36

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

 


Suggested Answer: BC

 

Question 37

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 38

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 39

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 40

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 41

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 42

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 43

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

 


Suggested Answer: D

Community Answer: D

 

Question 44

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 45

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.

 


Suggested Answer: D

Community Answer: D

 

Question 46

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

 


Suggested Answer: AB

Community Answer: AB

 

Question 47

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 48

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 49

Which two APIs are supported by Mist? (Choose two.)

A. SOAP

B. gRPC

C. Webhook

D. REST

 


Suggested Answer: CD

Community Answer: CD

 

Question 50

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

 

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