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Juniper JN0-252 認定試験の出題範囲：
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質問 # 32
Which two statements are correct about label configuration? (Choose two.)
- A. Labels can be created at either the organization level or site level.
- B. Labels can only be created at the organization level.
- C. Labels created at the site level can be applied at the organization level.
- D. Labels created at the organization level can be used in WLAN templates.
正解：A、D
質問 # 33
Which two statements correctly describe Mist claim codes and activation codes? (Choose two.)
- A. Claim codes may be used to claim multiple APs at once.
- B. An activation code is printed on a sticker on the AP.
- C. Claim codes may be used to claim only one AP.
- D. Activation codes may be used to claim multiple APs at once.
正解：C、D
解説：
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.
質問 # 34
Which statement is true about unsupervised AI learning?
- A. A human must label the dataset before the AI can be trained on it.
- B. It is used to analyze and classify unlabeled datasets.
- C. A human labels the dataset after the AI trains on it.
- D. It is used to analyze and classify labeled datasets.
正解：B
質問 # 35
In which two Mist configuration levels would you create labels? (Choose two.)
- A. switch
- B. site
- C. location
- D. organization
正解：B、D
解説：
Reference: https://www.mist.com/documentation/organization-labels-vs-site-labels/
質問 # 36
Referring to the exhibit, which two statements are correct? (Choose two.)
- A. You will need to log in to Mist every 60 minutes as long as you are viewing this organization.
- B. You will need to log in to Mist every 60 minutes regardless of which organization you are viewing.
- C. To stay logged in, you will need to perform an action in Mist every 10 minutes as long as you are viewing this organization.
- D. To stay logged in, you will need to perform an action in Mist every 10 minutes regardless of which organization you are viewing.
正解：A、C
解説：
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.
質問 # 37
Which statement Is correct about the SLE dashboard?
- A. SLEs are displayed as a percentage of failure and classifiers are displayed as a percentage of success.
- B. Both SLEs and classifiers are displayed as a percentage of failure.
- C. SLEs are displayed as a percentage of success and classifiers are displayed as a percentage of failure.
- D. Both SLEs and classifiers are displayed as a percentage of success.
正解：D
解説：
Service Level Expectations (SLEs): In Mist's SLE dashboard, SLEs are shown as a percentage of success. This indicates how well the network is meeting the predefined performance metrics, such as throughput, capacity, and coverage (CertsHero).
Classifiers: Classifiers, which help in diagnosing issues by breaking down SLEs into specific causes, are also displayed as a percentage of success. This unified view aids in quickly identifying areas that need improvement and ensures consistent monitoring (CertsHero).
Reference:
Juniper Networks Documentation
質問 # 38
In the Mist Access Point portfolio, which dedicated device would be used in location-based services (LBS)?
- A. AP32
- B. AP34
- C. AP12
- D. BT11
正解：D
解説：
Reference: https://www.mist.com/resources/ap43-access-point/
質問 # 39
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 not configured correctly with no users connected to it.
- C. The AP is configured correctly with no users connected to it.
- D. The AP is not configured correctly but one user is connected to it.
正解：C
質問 # 40
What are two prerequisites for adopting Juniper switches for Wired Assurance? (Choose two.)
- A. an activation code
- B. a Wired Assurance license
- C. an account on manage.mist.com
- D. a claim code
正解：A、B
解説：
Reference: https://www.juniper.net/us/en/products/cloud-services/wired-assurance.html
質問 # 41
In the Mist UI, which part of the system platform provides information about missing VLANs?
- A. Marvis Actions
- B. Service-Level Exceptions
- C. Switch Insights
- D. Events
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 # 42
A user device sends signal information to the Mist Location Engine. In this scenario, what is expected from the Mist Location Engine?
- A. coordinates
- B. login splash page
- C. sensor device information
- D. product advertisements
正解：A
質問 # 43
What are two characteristics of the 2.4 GHz band when compared to the 5 GHz band? (Choose two.)
- A. less non-Wi-Fi interference
- B. shorter wavelength
- C. lower frequency
- D. more congestion
正解：C、D
解説：
Reference: https://kb.netgear.com/29396/What-is-the-difference-between-2-4-GHz-and-5-GHz- wireless-frequencies
質問 # 44
In which two Mist configuration levels would you create labels? (Choose two.)
- A. switch
- B. site
- C. location
- D. organization
正解：B、D
質問 # 45
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?
- A. 0
- B. 1
- C. 2
- D. 3
正解：B
解説：
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.
Reference:
Mist Documentation on User Minutes: Mist Documentation
質問 # 46
ten protocol is used by Mist lo monitor non-Juniper switches?
- A. SMTP
- B. SNMP
- C. IPsec
- D. LLDP
正解：B
解説：
The Simple Network Management Protocol (SNMP) is used by Mist to monitor non-Juniper switches. SNMP is a widely adopted protocol for network management, enabling the collection and organization of information about managed devices on IP networks.
Reference:
Juniper Mist Monitoring Documentation
SNMP Configuration Guide
質問 # 47
What are two user roles that you are allowed to assign to a new account? (Choose two.)
- A. root
- B. network admin
- C. installer
- D. guest
正解：B、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.
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.
質問 # 48
Which Mist location-based feature would be used for wayfinding?
- A. Wi-Fi 6
- B. vBLE Engagement
- C. Asset Visibility
- D. Wi-Fi Location
正解：B
質問 # 49
Which SLE reports RF interference?
- A. AP Health
- B. Capacity
- C. Roaming
- D. Coverage
正解：D
質問 # 50
..are troubleshooting a wireless authentication problem.
Which two Mist features would help you in this scenario? (Choose two.)
- A. access point events
- B. packer capture
- C. audit logs
- D. client events
正解：B、D
解説：
Packet Capture: This feature allows for detailed inspection of traffic at the packet level. Capturing packets can help identify issues with authentication protocols, such as misconfigured settings or failures in the authentication exchange process.
Client Events: Monitoring client events provides insights into the client's authentication attempts, including successes and failures. This data helps in pinpointing where in the process the failure occurs, whether at the client, access point, or authentication server.
Reference:
Juniper Networks Documentation
質問 # 51
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