最新 [2025年03月06日] Juniper JN0-252リアル試験問題集PDF
JN0-252練習テスト問題は更新された90問題あります
質問 # 40
Which two use cases are popular in location-based services (LBS) deployments? (Choose two.)
- A. way finding
- B. micro segmentation
- C. SSID scheduling
- D. asset tracking
正解：A、D
解説：
Asset Tracking: Asset tracking is a common use case in LBS deployments, enabling organizations to locate and manage assets in real-time. This is particularly useful in environments like hospitals, warehouses, and large corporate campuses where knowing the precise location of equipment can save time and improve efficiency.
Wayfinding: Wayfinding helps users navigate through complex environments, such as large buildings, airports, and shopping malls. By providing real-time navigation assistance, LBS enhances the user experience and improves accessibility within these spaces.
質問 # 41
Mist cloud supports single sign-on in which two scenarios? (Choose two.)
- A. Wi-Fi guest login access
- B. admin login to the Mist portal
- C. account login used for the RESTful API
- D. account login used for NETCONF
正解：C、D
質問 # 42
Which statement defines the total user minutes?
- A. The average number of minutes that all clients have been associated to the network.
- B. The total amount of device uptime over the last seven days.
- C. The total number of minutes for which Mist has statistics for each client.
- D. The total number of minutes between a client's last association and disassociation.
正解：C
質問 # 43
Which statement is correct about a WLAN RF medium?
- A. A WLAN RF is a half-duplex, shared medium where 802.11 stations contend with each other for access.
- B. A WLAN RF is a full duplex, contention free medium where each client transmits on a separate channel.
- C. A WLAN RF is a full-duplex, contention-free medium where 802.11 stations can transmit and receive at the same time.
- D. A WLAN RF is a half-duplex, contention-free medium where the access point polls each station in turn.
正解：A
解説：
Reference: https://thewlan.com.au/2017/01/13/cwna-chapter-7-wireless-lan-topologies/
質問 # 44
What are two requirements for a WebSocket call? (Choose two.)
- A. encryption token
- B. WebSocket connection URL
- C. authentication token
- D. WebSocket configuration
正解：B、D
解説：
Mist Cloud Communication Protocol: The Mist cloud platform uses HTTPS (Hypertext Transfer Protocol Secure) to communicate with connected access points. This ensures that the data sent and received is encrypted and secure, adhering to modern security standards (Juniper Networks) (CertEnsure).
Security and Reliability: Using HTTPS provides a secure channel over which configuration changes, updates, and monitoring data can be safely transmitted between the Mist cloud and the access points. This protocol is widely accepted and trusted for secure communications over the internet.
Incorrect Options:
MQTT: While MQTT is a lightweight messaging protocol often used in IoT, it is not the protocol used by Mist cloud for AP communication.
SSH: Secure Shell (SSH) is primarily used for secure remote command-line access and not for the primary communication between Mist cloud and APs.
PPTP: Point-to-Point Tunneling Protocol (PPTP) is used for implementing VPNs and is not relevant to the communication between Mist cloud and access points.
Reference:
Juniper Networks Documentation: Mist Cloud Communication
質問 # 45
In the Mist UI, which part of the system platform provides information about missing VLANs?
- A. Marvis Actions
- B. Switch Insights
- C. Events
- D. Service-Level Exceptions
正解：A
解説：
System Platform Components in Mist UI:
Different components provide various insights and information about the network.
Component Descriptions:
Switch Insights: Provides detailed information about switch performance and status. Events: Logs and displays events occurring in the network but does not specifically highlight missing VLANs.
Marvis Actions: AI-driven insights and recommendations that include identifying and suggesting actions for missing VLANs.
Service-Level Exceptions (SLEs): Monitor and report on performance metrics, not specifically focused on VLAN issues.
質問 # 46
Which statement is correct about Wi-Fi location-based services (LBS)?
- A. Wi-Fi LBS requites me Wireless Assurance subscription.
- B. Wi-Fi LBS needs the User Engagement subscription.
- C. WI-FI LBS requites a Wired Assurance subscription.
- D. Wi-Fi LBS does not require a subscription.
正解：B
解説：
* Wi-Fi Location-Based Services (LBS) provided by Mist require the User Engagement subscription.
* This subscription includes features that enhance user interactions and engagement, such as location services, which are critical for delivering personalized and location-aware experiences.
* By leveraging Wi-Fi LBS with the User Engagement subscription, organizations can offer advanced services like wayfinding, asset tracking, and location analytics.
* Reference: Juniper Networks documentation on subscriptions required for Wi-Fi LBS and User Engagement services.
質問 # 47
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?
- A. The user e-mail addresses are not correctly formatted.
- B. Your e-mail server is blocking e-mail from Mist.
- C. The organization does not have sufficient alert subscriptions.
- D. The affected administrators have not enabled e-mail notifications in their Mist My Account settings.
正解：D
解説：
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.
Reference:
Mist Documentation on Notifications: Mist Documentation
質問 # 48
By default, how long does an Installer role have access to a site for initial configuration before expiration?
- A. 24 hours
- B. 7 days
- C. 48 hours
- D. unlimited
正解：B
質問 # 49
Which two statements are correct when managing switches located in a Mist-managed site?
(Choose two.)
- A. The switch must be assigned to the site.
- B. The site firewall must allow communications from the switch to Mist.
- C. The site must have Mist access points.
- D. A switch template must be assigned to the site.
正解：A、B
解説：
Reference: https://www.juniper.net/documentation/us/en/software/nce/nce-214-midsize-branch- mist-pwp/topics/topic-map/nce-214-midsize-branch-mist-example_part2.html
質問 # 50
Which statement is correct about Bluetooth and BLE?
- A. Bluetooth and BLE are compatible.
- B. BLE is an upgrade to Bluetooth.
- C. Bluetooth and BLE use the same radio channels.
- D. BLE is a newer technology than Bluetooth.
正解：C
質問 # 51
By default, which statement is correct regarding the upstream interfaces configuration on a Mixtape?
- A. The interface is configured to use VLAN 10.
- B. The Interface is configured to use VLAN 11.
- C. The Interface is configured to send untagged traffic.
- D. The interface is configured as a trunk port and accepts only tagged traffic.
正解：D
質問 # 52
What are two requirements to use the Wired Visibility option of Juniper Mist Wireless Assurance? (Choose two.)
- A. A cloud-ready switch must be deployed in the network.
- B. A Mist AP must be deployed in the network.
- C. The LLDP protocol must be configured on the switch.
- D. The SNMP protocol must be configured on the switch.
正解：A、D
質問 # 53
What are two user roles trial you ate allowed to assign to a new account? (Choose two.)
- A. network admin
- B. root
- C. installer
- D. guest
正解：A、C
解説：
Installer: The installer role is designed for users who need access to configure and deploy Mist devices. This role typically has the necessary permissions to set up and manage devices but with limited access to other administrative functions (CertsHero).
Network Admin: The network admin role provides comprehensive access to manage network settings, monitor performance, and configure policies. This role is essential for users responsible for the overall network administration and maintenance (CertsHero).
Reference:
Juniper Networks Documentation
質問 # 54
Which two statements correctly describe the provisioning of greenfield and brownfield switches using the Mist Ul? (Choose two.)
- A. Brownfield switches are provisioned using the Claim Switches button.
- B. Brownfield switches are provisioned using the Adopt Switches button.
- C. Greenfield switches are provisioned using the Claim Switches button.
- D. Greenfield switches are provisioned using the Adopt Switches button.
正解：B、D
解説：
* Both greenfield (new, unconfigured) and brownfield (pre-existing, configured) switches can be adopted into the Mist management framework using the "Adopt Switches" button within the Mist UI.
* This process involves bringing the switches under Mist management by applying the necessary configurations and policies from the Mist cloud.
* The adoption process ensures that all switches, regardless of their initial state, are integrated and managed consistently within the Mist ecosystem.
* Reference: Juniper Networks documentation on switch adoption and provisioning using the Mist UI.
質問 # 55
Which two statements about the Mist UI are true? (Choose two.)
- A. It can initiate a BLE packet capture.
- B. It can initiate a wired packet capture.
- C. It can initiate a wireless packet capture.
- D. It can initiate a packet capture on cloud uplink.
正解：B、C
解説：
Reference: https://www.mist.com/documentation/wired-packet-capture/
質問 # 56
You are inviting a new administrator into a Mist organization. In this scenario, which two roles are valid? (Choose two.)
- A. Network Admin
- B. System Admin
- C. Standard
- D. Helpdesk
正解：A、D
質問 # 57
How does Mist determine the location of clients in an indoor setting?
- A. trilateration
- B. GPS
- C. probability surface
- D. triangulation
正解：C
解説：
This method leverages data from access points to create a probabilistic model of where clients are likely to be based on their signal strengths.
質問 # 58
In the Latest Updates section of Marvis Actions, an issue might be classified as one of which three states? (Choose three.)
- A. Active
- B. Intermittent Issue
- C. Resolved
- D. AI Validated
- E. Reoccurring Issue
正解：C、D、E
質問 # 59
Which two Mist UI options are available to receive notifications of Mist cloud status changes?
(Choose two.)
- A. Slack
- B. SNMP
- C. Email
- D. RSS
正解：A、C
解説：
Notification Options in Mist UI:
Mist provides several options for receiving notifications about Mist cloud status changes.
Available Notification Methods:
SNMP: Typically used for network management but not a primary method for Mist notifications.
RSS: Not commonly used for real-time notifications.
Slack: Mist can integrate with Slack to provide notifications directly to communication channels.
Email: Mist can send email notifications about cloud status changes.
質問 # 60
An AP is connected to your wired network but is not claimed to your organization.
Which type of AP would be a possible security threat in this scenario?
- A. neighbor AP
- B. honeypot AP
- C. spoofed AP
- D. rogue AP
正解：D
解説：
Types of APs and Security Threats:
Understanding different types of access points and their potential security threats.
Access Point Types:
Neighbor AP: An access point that belongs to a neighboring network and is not necessarily a security threat.
Rogue AP: An unauthorized access point connected to the wired network, posing a significant security threat.
Spoofed AP: An access point that mimics a legitimate one, but typically does not involve being connected to the network.
Honeypot AP: An access point set up to lure attackers, not necessarily a threat unless used maliciously.
Identifying the Threat:
An AP connected to your wired network but not claimed to your organization is considered a rogue AP and poses a security threat.
質問 # 61
Which two Wi-Fi related SLEs are visible in the Mist UI? (Choose two.)
- A. Switch Health
- B. Application Health
- C. Throughput
- D. Capacity
正解：C、D
解説：
Wi-Fi Related SLEs in Mist UI:
SLEs (Service Level Expectations) help monitor and ensure Wi-Fi network performance.
Visible SLEs:
Capacity:
Capacity SLE monitors the network's ability to handle the number of connected clients and their bandwidth requirements.
Throughput:
Throughput SLE measures the data transfer rates, ensuring that the network meets the expected performance levels.
質問 # 62
Under Man/Is Actions, what is required for Marvis to provide a visualization of low coverage and low-capacity issues within the network?
- A. a floor plan
- B. a WAN edge device
- C. a Premium Analytics subscription
- D. a cloud-ready switch
正解：A
解説：
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.
Reference:
Juniper Mist AI Documentation
Marvis Actions
質問 # 63
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