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質問 # 49
What is the maximum number of nodes supported in a Mist Edge high availability cluster?
- A. three nodes
- B. unlimited nodes
- C. ten nodes
- D. two nodes
正解：D
解説：
A Mist Edge high availability cluster supports a maximum of two nodes. This allows for redundancy and failover in case one of the nodes goes down.
質問 # 50
What does the Predictive Analytics and Correlation Engine (PACE) of Mist AI use to understand the end-user experience?
- A. User feedback
- B. Network monitoring tools
- C. Manual analysis
- D. Machine learning
正解：D
解説：
ThePredictive Analytics and Correlation Engine (PACE)is the core AI engine that powers theJuniper Mist Cloud. It is designed to continuously learn from real-time telemetry and user interactions across wireless, wired, and WAN networks to proactively identify anomalies and predict performance issues.
According to theJuniper Mist AI Cloud and PACE Architecture Documentation, PACE:
"Leverages machine learning and advanced analytics to correlate data across millions of network sessions, automatically identifying patterns that affect user experience." The engine continuously evaluates key Service Level Expectations (SLEs), such asTime to Connect, Throughput, andRoaming, to establish performance baselines and detect deviations before users notice them.
PACE doesnot rely on manual analysisoruser feedback, and it integrates telemetry rather than external monitoring tools to maintain a closed-loop feedback system for self-correction and optimization.
Therefore, PACE usesmachine learning (A)to understand, predict, and improve end-user experience across Juniper Mist-managed networks.
References:- Juniper Mist AI Cloud Architecture and PACE Overview- Juniper Mist AI Operations and Analytics Guide- Juniper Mist Assurance and Machine Learning Documentation
質問 # 51
Exhibit:
Referring to the exhibit, which SLE would an administrator investigate to troubleshoot weak signal issues?
- A. Roaming
- B. Coverage
- C. Successful Connects
- D. Throughput
正解：B
解説：
InJuniper Mist Wireless Assurance,Service Level Expectations (SLEs)are key metrics that measure different aspects of the end-user experience. Each SLE focuses on a distinct area of network performance such asConnection,Roaming,Throughput, andCoverage.
TheCoverage SLEspecifically measures whether wireless clients are receiving adequate signal strength (RSSI) and signal quality (SNR) from access points. According to theJuniper Mist AI Operations and SLE Analytics Guide, this metric is defined as:
"The Coverage SLE quantifies the percentage of client sessions that meet the required signal strength and quality thresholds. Low coverage indicates areas with weak or inconsistent RF signal levels." When users experienceweak signal or dead zones, theCoverage SLEprovides insight into where and why these issues occur. Mist AI identifies sub-classifiers such asSignal Quality,Wi-Fi Interference, orAirtime Utilization, allowing administrators to isolate the cause of poor signal conditions.
Therefore, in the exhibit shown, an administrator would investigate theCoverage SLE (79%), as it directly relates to signal weakness or RF coverage problems.
References:- Juniper Mist Wireless Assurance and SLE Documentation- Juniper Mist AI Operations and Analytics Guide- Juniper Mist Cloud Dashboard and RF Monitoring Overview
質問 # 52
What are Audit Logs used for in Juniper Mist?
- A. to view error information about all devices in the organization
- B. to set up your organization
- C. to view a complete record of logins
- D. to manage subscriptions and orders
正解：C
解説：
Audit Logs in Juniper Mist are used to view a complete record of logins. The documentation states: "On the Audit Logs page, you can see who logged in to the Juniper Mist portal, when they logged in, and what they did." Audit Logs also record configuration and administrative actions by users on all sites within the organization, enabling administrators to track activity for compliance, troubleshooting, and security. This comprehensive record assists with accountability and change tracking, but they do not manage subscriptions, organization setup, or error logs for all devices. Filtering options allow for activity analysis over selectable time periods, by users, and by site to provide detailed insights into administrative behavior and user access history.
Reference:Juniper Mist Audit Logs | Monitor Administrator Activities | Mist Management
質問 # 53
You are asked to display your network devices using the Juniper Mist GUI as a single solution. Your network is made up of a wireless infrastructure of only Juniper APs, and the wired infrastructure has a mix of Juniper and non-Juniper switches. Your solution must ensure that all devices are displayed in the Juniper Mist GUI.
Given this scenario, how would you accomplish this task?
- A. Use Wi-Fi Management and Assurance with LLDP enabled on all switches.
- B. Use Juniper Mist Asset Visibility.
- C. Use Juniper Mist Marvis Actions.
- D. Use Wired Assurance with the Monitoring option.
正解：B
解説：
The appropriate solution is Juniper Mist Asset Visibility (option C). Asset Visibility is a cloud service that leverages Juniper Mist Access Points and virtual Bluetooth Low Energy (vBLE) technology to track, locate, and display all network devices-including both Juniper and non-Juniper hardware-within the Mist GUI.
According to the official Juniper documentation: "Juniper Mist Asset Visibility unites Wi-Fi connectivity, indoor location services for asset tracking, and IoT visibility in a single cloud platform. By combining vBLE with the Mist Cloud, organizations can use the same infrastructure-even when wired switches are from different vendors-for locating, tracking, and analyzing their most valuable assets and network devices." This capability is independent of switch manufacturer and provides comprehensive visualization of wireless APs and connected wired devices, ensuring a true single-pane-of-glass management experience. Wired Assurance, Marvis Actions, and LLDP-enabled Wi-Fi Management may provide visibility and proactive troubleshooting, but only Asset Visibility guarantees display and tracking of all assets-Juniper and non- Juniper-in the Mist GUI.
Reference:Juniper Mist Asset Visibility Datasheet; Visibility Services Overview
質問 # 54
When reviewing your site's SLEs, you notice a significantly high percentage of Asymmetry Uplink errors.
What do these errors indicate?
- A. excessive client load
- B. a coverage hole
- C. slow 802.11r roams
- D. excessive non-Wi-Fi interference
正解：B
解説：
A high percentage of Asymmetry Uplink errors indicates coverage holes caused by asymmetric uplink strength between the AP and client devices. According to Juniper Mist's official documentation: "Asymmetry Uplink-Clients received a weak signal due to asymmetric uplink strength between the AP and the client device. (Uplink traffic is the traffic going from the client to the AP, and then to the Internet.) Asymmetry can occur for various reasons, such as clients being too far from the AP." This generally means that clients are physically located at a distance or behind obstacles (such as walls), causing the AP to detect weak signals from those clients. Coverage holes arise when APs are placed such that some areas have insufficient RF coverage, and the low-powered client devices cannot maintain reliable communication with the AP-even though the AP, with its higher transmit power, might hear the client, the client cannot send strong enough signals back. The SLE classifier is designed to highlight such areas for remediation, prompting network admins to review and enhance AP placement or signal thresholds.
Reference:Juniper Mist Wireless Coverage SLE Documentation; Service Level Expectations Overview; Wireless Assurance Configuration Guide
質問 # 55
Which type of machine learning does Radio Resource Management (RRM) use?
- A. Supervised learning
- B. Reinforcement learning
- C. Cognitive learning
- D. Unsupervised learning
正解：B
解説：
TheAI-driven Radio Resource Management (RRM)system inJuniper Mist Wireless Assuranceemploys reinforcement learningto continuously optimize wireless radio parameters such as channel selection, transmit power, and channel width.
According to theJuniper Mist Wireless Assurance and AI-Driven RRM Guide:
"The RRM system leverages reinforcement learning techniques to dynamically adjust radio configurations based on environmental conditions, user density, and interference patterns." Reinforcement learning enables the Mist AI system to make decisions by continuously evaluating the outcome of past configurations and improving future adjustments. This ensures that Mist RRM can autonomously optimize RF conditions for coverage and capacity without manual intervention.
Therefore, the correct answer isC. Reinforcement learning.
References:- Juniper Mist Wireless Assurance and AI-Driven RRM Guide- Juniper Mist AI and Machine Learning Architecture Documentation- Juniper Mist Cloud Operations and Optimization Overview
質問 # 56
What is the purpose of assigning roles to switches?
- A. To monitor network traffic
- B. To assign configurations at scale
- C. To manage user accounts
- D. To configure WLANs
正解：B
解説：
InJuniper Mist Wired Assurance, assigningrolesto switches is a key configuration mechanism for deploying consistent network policies across multiple devices. Switch roles act as logical identifiers that bind devices to specificconfiguration templatesorpolicy profiles, ensuring standardized setup and reducing manual configuration overhead.
According to theJuniper Mist Wired Assurance Configuration and Template Management Guide:
"Switch roles are used to group devices based on function or location and automatically apply predefined configuration templates and policies at scale." This enables administrators to:
* Automatically assign VLANs, port profiles, and policies to multiple switches simultaneously.
* Simplify deployment for large organizations with multiple sites.
* Ensure uniform compliance with enterprise configuration standards.
Roles arenot usedto configure WLANs (wireless function), manage users, or directly monitor traffic - those tasks are handled through other Mist AI services.
Therefore, the correct answer isC. To assign configurations at scale.
References:- Juniper Mist Wired Assurance Configuration and Template Management Guide- Juniper Mist Cloud Administration Guide- Juniper Mist Wired Assurance Operations Documentation
質問 # 57
Your organization has a Marvis subscription. You have an issue with an access point (AP) that does not power on. You decide to open a support ticket.
In this scenario, what does Marvis do while you are filling in the details on the New Ticket screen?
- A. Marvis provides possible solutions to AP power problems from the Juniper Mist documentation.
- B. Marvis provides links to Internet resources about AP power problems.
- C. Marvis sends an e-mail to [email protected] on your behalf.
- D. Marvis creates the support tickets.
正解：A
解説：
When an administrator begins to open asupport ticketwithin theJuniper Mist portal, theMarvis Virtual Network Assistantproactively assists by presenting relevant, AI-driven recommendations and documentation.
According to theJuniper Mist Marvis Virtual Network Assistant Guide, this process is described as:
"While an administrator creates a support case, Marvis automatically searches the Mist knowledge base and presents probable causes and recommended solutions based on the detected issue type." If the issue involves anAP that does not power on, Marvis retrieves contextual data such as PoE status, switch port state, and recent telemetry logs, then providesautomated guidance-for example, checking PoE configurations or cable connectivity.
Thus, while the administrator fills in the "New Ticket" details,Marvis provides potential solutions directly from Juniper Mist's documentation, potentially resolving the issue before a support case is even submitted.
The correct answer isD. Marvis provides possible solutions to AP power problems from the Juniper Mist documentation.
References:- Juniper Mist Marvis Virtual Network Assistant User Guide- Juniper Mist AI Operations and Support Automation Documentation- Juniper Mist Cloud Case Creation and Marvis Integration Overview
質問 # 58
Which three categories of alert types are available in Juniper Mist? (Choose three.)
- A. Security
- B. Site
- C. Users
- D. Infrastructure
- E. Marvis
正解：A、D、E
解説：
Alerts represent network and device issues that are ongoing. Juniper Mist™ categorizes them as follows:
* Infrastructure Alerts-Repeated events involving servers and protocols that can potentially affect a large number of clients. For example, an event during which a Domain Name System (DNS), Dynamic Host Configuration Protocol (DHCP), or RADIUS server is unreachable can affect many clients.
Similarly, if a power supply on a switch is in alarm state, a large number of clients and a large amount of traffic could be affected.
* Marvis Alerts-Repeated events that Marvis tracks on the Marvis Actions dashboard. For example, if an access point (AP) regularly fails health checks, you'll see a Marvis alert for it.
* Security Alerts-Repeated events that could dramatically affect network security. For example, these alerts appear if a rogue AP is detected and clients start connecting to it.
* Certificate Alerts-Notification for expired, and soon-to-expire, user-added digital certificates. These include RadSec (configured at Organization > Settings > RadSec Certificates and AP RadSec certificate), SSO (configured at Organization > Settings > Single Sign-On), and PSK Portal IDP certificates (configured at Organization > Client Onboarding). Certificate alerts appear on the Alerts page and begin 30 days before the certificate's expiry date, then the notification repeats 15, 7, 3, and 1 day before expiration unless the certificate is renewed. .
https://www.juniper.net/documentation/us/en/software/mist/mist-aiops/topics/concept/alerts-overview.html
質問 # 59
You have five clients on the network and 20 minutes of statistics for each client.
In this scenario, how many user minutes does this equal?
- A. 0
- B. 1
- C. 2
- D. 3
正解：D
解説：
Identify the Scenario: Five clients on the network and 20 minutes of statistics for each client.
Calculation:
User Minutes = 100.
Conclusion:
The total user minutes in this scenario is 100.
質問 # 60
Which users have rights to invite new administrators to a Mist organization?
- A. any user with an organization account
- B. super user only
- C. network admin user only
- D. users with the "Invite Admin" permission
正解：B
質問 # 61
What is the sampling method used in supervised learning?
- A. decision tree
- B. random forest
- C. regression
- D. labeled dataset
正解：D
解説：
The fundamental sampling method used in supervised learning is a labeled dataset. As described in Juniper Mist AI and machine learning application guides, supervised learning algorithms are trained using datasets in which each sample is paired with a known output (label). The model is fed examples comprising input data and the correct answer, learning patterns to map new inputs to their target outputs. While regression, decision tree, and random forest are techniques within supervised learning, the process fundamentally relies on having a labeled dataset for both training and validation phases. "Supervised machine learning models are built on labeled data, with each input paired to a target value or classification." This allows for accurate model training and evaluation.
Reference:Juniper Mist AI Explainable AI Reference , Machine Learning in Juniper Mist
質問 # 62
Which Juniper Mist location-based service improves accuracy?
- A. Wi-Fi Location
- B. Asset Visibility
- C. Proximity Detection
- D. User Engagement
正解：B
解説：
Among Juniper Mist'sLocation-Based Services,Asset Visibilityprovides the most accurate location tracking capabilities. This is achieved through the use ofvBLE (virtual Bluetooth Low Energy)technology, which leverages a patented16-element BLE antenna arrayintegrated into Mist Access Points forAngle of Arrival (AoA)calculations.
According to theJuniper Mist Location-Based Services Technical Overview:
"Asset Visibility delivers sub-meter location accuracy by using BLE-based triangulation combined with Mist AI's machine learning algorithms for continuous calibration." WhileWi-Fi locationoffers approximate device tracking based on signal strength and triangulation, and Proximity Detectionidentifies nearby devices,Asset Visibilityprovides precise real-time tracking of BLE- tagged objects and devices.
User Engagement, on the other hand, focuses on customer-facing mobile interactions, not accuracy optimization.
Therefore, the correct answer isC. Asset Visibility.
References:- Juniper Mist Location-Based Services and Asset Visibility Documentation- Juniper Mist vBLE Architecture Overview- Juniper Mist Cloud Location Accuracy Optimization Guide
質問 # 63
What are two requirements for a WebSocket call? (Choose two.)
- A. WebSocket configuration
- B. encryption token
- C. WebSocket connection URL
- D. authentication token
正解：C、D
質問 # 64
What should be specified in the session policy settings?
- A. The types of special characters allowed in the password.
- B. The minimum number of characters required for the password.
- C. The duration for session timeout and inactivity timeout.
- D. The implementation of two-factor authentication (2FA).
正解：C
解説：
Thesession policy settingsin theJuniper Mist Clouddefine how long a user session remains active and how the system manages session expirations due to inactivity. These configurations help ensure bothsecurityand efficient resource managementacross the Mist Cloud portal and API sessions.
According to theJuniper Mist Cloud Administration and Security Configuration Guide:
"Session policy defines session timeout and inactivity timeout parameters, controlling how long users can remain logged into the Mist Cloud portal or API before re-authentication is required."
* Session Timeout:Specifies the maximum duration a session can remain active, regardless of activity.
* Inactivity Timeout:Defines how long a session can remain idle before automatic logout.
These policies help maintain strong access security by reducing the risk of unauthorized access through stale sessions.
Other options such as password complexity (A, C) and two-factor authentication (D) are configured under authentication and access policies, not session policies.
Therefore, the correct answer isB. The duration for session timeout and inactivity timeout.
References:- Juniper Mist Cloud Administration and Security Configuration Guide- Juniper Mist Organization Access and Authentication Policy Documentation- Juniper Mist Cloud Operations and Management Overview
質問 # 65
Which two statements are true about packet captures on an AP? (Choose two.)
- A. Wireless and wired packets can be captured.
- B. Only wireless packets can be captured.
- C. The involved APs remain in service.
- D. The involved APs are taken out of service.
正解：A、C
解説：
Mist APs have the capability to capture both wireless and wired packets. This feature allows for comprehensive network troubleshooting by providing visibility into both types of traffic. When performing packet captures on Mist APs, the APs remain in service. This means they continue to operate and serve clients while the capture is ongoing, ensuring minimal disruption to network operations.
This functionality is critical for maintaining network availability and performance while conducting detailed packet analysis.
質問 # 66
How do Wireless Assurance SLEs help administrators troubleshoot?
- A. They manage Juniper Mist subscriptions.
- B. They help streamline the onboarding process.
- C. They set benchmarks for network performance and user experiences.
- D. They customize the Guest User portal.
正解：C
解説：
In Juniper Mist AI,Wireless Assurance Service Level Expectations (SLEs)are designed to provideAI- driven visibility into user experience and network performance. Each SLE represents a specific aspect of the end-user journey - such asTime to Connect, Throughput, Coverage, Roaming, Capacity, and Application Experience.
According to the Juniper Mist documentation, SLEs "define measurable benchmarks for user experience and identify where deviations occur." This allows administrators to quickly determine whether issues stem from client devices, access points, wired uplinks, or WAN connectivity. When an SLE metric falls below its threshold, Mist AI automatically highlights the affected classifier (for example, DHCP, DNS, or Wi-Fi interference) and providesroot-cause correlationthrough AI-driven insights.
This data-driven approach enables administrators totroubleshoot proactivelyby focusing on user-impacting areas instead of raw device statistics. Thus, Wireless Assurance SLEs act asexperience-based benchmarks that simplify troubleshooting, improve performance visibility, and shorten mean time to repair (MTTR).
References:- Juniper Mist Wireless Assurance and SLEs Overview- Juniper Mist AI Operations and Analytics Guide- Juniper Mist Cloud Documentation on Service Level Expectations
質問 # 67
Which statement is true about unsupervised AI learning?
- A. A human must label the dataset before the AI can be trained on it.
- B. A human labels the dataset after the AI trains on it.
- C. It is used to analyze and classify unlabeled datasets.
- D. It is used to analyze and classify labeled datasets.
正解：C
質問 # 68
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