Juniper JN0-252 Practice Test - Questions Answers
List of questions
Related questions
Question 1
Which unit of measurement Is used for capacity, coverage, and throughput SLEs?
Explanation:
For capacity, coverage, and throughput Service Level Expectations (SLEs) in Mist AI, throughput is measured in Mbps. This unit measures the rate at which data is successfully delivered over the wireless network, providing a clear indication of network performance and user experience. Mist AI tracks these metrics to ensure the network meets the required performance standards.
Wireless Throughput SLE
Service Level Expectations (SLE)
Question 2
Under Man/Is Actions, what is required for Marvis to provide a visualization of low coverage and low-capacity issues within the network?
Explanation:
For Marvis, Mist AI's virtual network assistant, to provide a visualization of low coverage and low-capacity issues within the network, a floor plan is required. This enables Marvis to map the coverage and capacity data to specific locations within the physical space, allowing for precise identification and troubleshooting of network issues.
Juniper Mist AI Documentation
Marvis Actions
Question 3
Which two statements correctly describe the encryption of traffic using Mist? (Choose two.)
Explanation:
AP and RADIUS Server Communication: By default, the communication between an Access Point (AP) and a RADIUS server is not encrypted. This can be configured to be encrypted, but it is not the default setting.
Wi-Fi Client and AP Communication: By default, the communication between a Wi-Fi client and an AP is encrypted, typically using WPA2 or WPA3, which ensures the data exchanged over the wireless network is secure.
Mist Wireless Security Documentation
RADIUS Configuration Guide
Question 4
Which two statements correctly describe Mist claim codes and activation codes? (Choose Two.)
Explanation:
Claim Codes: Claim codes are unique to each AP and can be used to claim only one AP at a time. This ensures each device is correctly registered and managed individually within the Mist system.
Activation Codes: Activation codes can be used to claim multiple APs at once, facilitating bulk onboarding and simplifying the setup process for large deployments.
Juniper Mist Claim and Activation Codes
Mist Setup Guide
Question 5
You are asked to configure Mist lo send e-mail alerts lo your organization administrators, who all have mailboxes that reside on the same e-mail server. Alerts are being generated and are visible in the Mist GUI. but only some administrators are receiving the alert emails.
What Is the problem in this scenario?
Explanation:
Identify the Problem: Alerts are being generated and visible in the Mist GUI, but only some administrators receive the alert emails.
Possible Issues:
User email addresses not correctly formatted.
Email server blocking Mist emails.
Insufficient alert subscriptions.
Administrators not enabling email notifications.
Root Cause:
Since some administrators receive the alerts, email formatting and server blocking issues can be ruled out.
If alert subscriptions were insufficient, no administrators would receive the alerts.
The most likely cause is that the affected administrators have not enabled email notifications in their Mist My Account settings.
Resolution:
Ensure that all administrators have enabled email notifications in their Mist My Account settings.
Mist Documentation on Notifications: Mist Documentation
Question 6
You are troubleshooting a wireless client's issue and you suspect It Is related to DHCP latency. In this scenario, which SLE should you review in the Mist Ul?
Explanation:
Identify the Problem: Suspected issue related to DHCP latency while troubleshooting a wireless client.
Understanding SLEs:
Capacity: Related to the number of clients and bandwidth.
Time to Connect: Measures the time taken for clients to connect, including DHCP latency.
Throughput: Measures the data transfer rate.
Coverage: Measures the signal strength and coverage area.
Selecting the Appropriate SLE:
Time to Connect is the relevant SLE as it includes metrics on DHCP latency, which affects the connection time.
Review the SLE:
Analyze the Time to Connect SLE to identify any latency issues with DHCP.
Mist Documentation on SLEs: Mist Documentation
Question 7
You have five clients on the network and 20 minutes of statistics tot each client. In this scenario, how many user minutes does this equal?
Explanation:
Identify the Scenario: Five clients on the network and 20 minutes of statistics for each client.
Calculation:
User Minutes = Number of Clients Duration of Statistics.
User Minutes = 5 clients 20 minutes per client.
User Minutes = 100.
Conclusion:
The total user minutes in this scenario is 100.
Mist Documentation on User Minutes: Mist Documentation
Question 8
Which Radio Resource Management (RRM) changes are only made once a day between 2:00 AM and 3:00 AM local time?
Explanation:
Identify the Changes: Radio Resource Management (RRM) changes and their timings.
RRM Changes:
Channel and power settings based on long-term statistics.
RF template changes to channel width.
Changes triggered by SSID scheduling.
Changes triggered by DFS events.
Timing of Changes:
Long-term RRM changes to channel and power settings are typically scheduled once a day to avoid disrupting network performance.
Conclusion:
Channel and power settings across a site based on long-term statistics and baselines are made once a day between 2:00 AM and 3:00 AM local time.
Mist Documentation on RRM: Mist Documentation
Question 9
Exhibit.
which two statements are correct? (Choose two.)
Explanation:
Identify the Statements:
Login frequency and actions needed to stay logged in.
Login Policies:
Users need to log in to Mist every 60 minutes if viewing a specific organization.
To stay logged in, users need to perform an action every 10 minutes within the organization.
Correct Statements:
You will need to log in to Mist every 60 minutes as long as you are viewing this organization.
To stay logged in, you will need to perform an action in Mist every 10 minutes as long as you are viewing this organization.
Conclusion:
The correct answers are A and C.
Mist Documentation on Login Policies: Mist Documentation
Question 10
...are asked to enable Mist management at an existing site with previously configured EX3400 brownfield switches, and to add a new greenfield switch, which statement is correct in this scenario?
Explanation:
In the context of Mist management, 'brownfield' switches refer to those that are already configured and deployed in a network, while 'greenfield' switches are new and have no pre-existing configuration.
Mist supports the integration and management of both brownfield and greenfield switches within the same site. The crucial requirement is that all switches, regardless of their initial state, must be running a version of Junos that is supported by Mist.
This compatibility ensures that Mist can apply policies, configurations, and monitoring uniformly across all devices, facilitating a seamless management experience.
Reference: Juniper Networks documentation on Mist AI and Junos compatibility requirements.
Question