JN0-251 Dumps PDF 2023 Strategy Your Preparation Efficiently
Latest Verified & Correct Juniper JN0-251 Questions
NEW QUESTION # 43
What is a Mist Coverage SLE based upon?
- A. an average of client data
- B. a summary of switch data
- C. an average across APs
- D. a summary of user minutes
Answer: B
NEW QUESTION # 44
Which statement is correct about Bluetooth and BLE?
- A. BLE is an upgrade to Bluetooth.
- B. Bluetooth and BLE are compatible.
- C. Bluetooth and BLE use the same radio channels.
- D. BLE is a newer technology than Bluetooth.
Answer: D
NEW QUESTION # 45
Which two statements are correct about microservices? (Choose two.)
- A. A microservice can be added without system downtime.
- B. A microservice can be updated without system downtime.
- C. All microservices can be updated at the same time without downtime.
- D. Each microservice uses the same virtual hardware.
Answer: A,B
Explanation:
A microservice can be added without system downtime. This is because microservices are independent and loosely coupled components that communicate over well-defined APIs. Adding a new microservice does not affect the functioning of other existing microservices or the overall application. The new microservice can be deployed and integrated seamlessly with the rest of the system1.
A microservice can be updated without system downtime. This is because microservices allow each service to be developed, tested, and deployed independently of other services. Updating a microservice does not require changing or restarting the entire application. The updated microservice can be rolled out gradually or reverted easily if needed2.
NEW QUESTION # 46
Which two methods are supported for configuring a Mist environment? (Choose two.)
- A. Use the CLI.
- B. Use the API.
- C. Use NETCONF.
- D. Use the GUI.
Answer: B,D
NEW QUESTION # 47
You are inviting a new administrator into a Mist organization.
In this scenario, which two roles are valid? (Choose two.)
- A. Helpdesk
- B. Network Admin
- C. Standard
- D. System Admin
Answer: B,D
NEW QUESTION # 48
What is a Mist Coverage SLE based upon?
- A. an average of client data
- B. a summary of switch data
- C. an average across APs
- D. a summary of user minutes
Answer: D
NEW QUESTION # 49
Which Mist location-based feature would be used for wayfinding?
- A. Wi-Fi Location
- B. vBLE Engagement
- C. Wi-Fi 6
- D. Asset Visibility
Answer: A
NEW QUESTION # 50
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. the time of the incident
- B. the access point to which the client was connected
- C. user home address
- D. the MAC address of the client device
Answer: A,D
Explanation:
A user called a help desk to report a Wi-Fi issue. In this scenario, the information that must be provided for Marvis to troubleshoot the issue are the MAC address of the client device and the time of the incident. These are two of the essential parameters that Marvis needs to identify and analyze the wireless client and its connection history.
The MAC address of the client device is a unique identifier that allows Marvis to locate and track the client on the wireless network. The MAC address can be found on the device settings, label, or sticker, depending on the device type. The MAC address can also be obtained from the Mist portal or the Mist AI App by searching for the client name or IP address.
The time of the incident is the approximate date and time when the user experienced the Wi-Fi issue. The time of the incident can help Marvis narrow down the scope of the troubleshooting and focus on the relevant data and events. The time of the incident can be specified in various formats, such as "today", "yesterday", "last week", "10 minutes ago", "5 pm", etc.
To troubleshoot a Wi-Fi issue using Marvis, you can use phrases such as "troubleshoot client <MAC address> on <time>" or "how was client <MAC address> on <time>" in the Marvis Conversational Assistant window. Marvis will show you the details of the client's connection status, performance, issues, and recommendations.
NEW QUESTION # 51
Mist Insights will provide detailed information about which two categories? (Choose two.)
- A. Organization
- B. AP
- C. Templates
- D. Client
Answer: B,D
NEW QUESTION # 52
What does Mist with Wi-Fi Assurance do to detect a bad cable connected to an AP?
- A. It performs cable tests.
- B. It monitors SNMP trap information.
- C. It applies machine learning to telemetry data.
- D. It sends probe traffic through the cable connections.
Answer: A
Explanation:
Reference:
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NEW QUESTION # 53
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
Answer: C,D
Explanation:
According to the web search results, the Mist help menu provides direct access to feature updates and firmware updates, among other options. Feature updates are weekly updates that show the new features and enhancements that are added to the Mist platform1. Firmware updates are software updates that show the latest firmware versions for different Mist devices, along with the release notes and the features they support2. You can access these options from the Support Tickets and Documentation menu in the Mist GUI12. You can also use the ? mark in the upper right of the UI to see the latest firmware and previous production releases2.
NEW QUESTION # 54
Which Marvis Action category will detect a bad cable based on information and behavior of a single AP?
- A. Connectivity
- B. Layer 1
- C. Switch
- D. AP
Answer: B
NEW QUESTION # 55
You are inviting a new administrator into a Mist organization.
In this scenario, which two roles are valid? (Choose two.)
- A. System Admin
- B. Network Admin
- C. Standard
- D. Helpdesk
Answer: B,D
Explanation:
Reference:
According to the Administrator Roles page, there are five types of roles that can be assigned to users in a Mist organization: Super User, Network Admin, Helpdesk, Observer, and Installer4. Each type of role has different read and write capabilities for the organization and its sites4. Helpdesk and Network Admin are two of the valid roles that can be selected when inviting a new administrator into a Mist organization4. Standard and System Admin are not valid roles in Mist.
NEW QUESTION # 56
What happens when Mist subscriptions expire?
- A. Devices retain their configurations and all Mist management GUI functionality remains available to the user.
- B. 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.
- C. Devices retain their configurations but the Mist user is prevented from accessing the Mist management GUI.
- D. Devices retain their configurations but Mist management GUI functionality related to expired subscriptions are not configurable by the user.
Answer: D
NEW QUESTION # 57
What are two characteristics of the 2.4 GHz band when compared to the 5 GHz band? (Choose two.)
- A. shorter wavelength
- B. lower frequency
- C. more congestion
- D. less non-Wi-Fi interference
Answer: B,C
Explanation:
Reference:
The correct answer is B. lower frequency and D. more congestion. These are two characteristics of the 2.4 GHz band when compared to the 5 GHz band. The 2.4 GHz band uses lower frequencies than the 5 GHz band, which means that it can penetrate solid objects better and have more range1. However, the lower frequencies also mean that the 2.4 GHz band has less bandwidth and speed than the 5 GHz band1. The 2.4 GHz band is also more congested than the 5 GHz band, as it has fewer non-overlapping channels and more interference from other devices and routers that use the same frequency band23. The 5 GHz band, on the other hand, has more non-overlapping channels and less interference, which makes it faster and more reliable23.
NEW QUESTION # 58
Which two statements are correct about label configuration? (Choose two.)
- A. Labels can only be created at the organization level.
- B. Labels can be created at either the organization level or site level.
- C. Labels created at the organization level can be used in WLAN templates.
- D. Labels created at the site level can be applied at the organization level.
Answer: B,C
NEW QUESTION # 59
You are inviting a new administrator into a Mist organization.
In this scenario, which two roles are valid? (Choose two.)
- A. Custom
- B. Advanced
- C. Observer
- D. Installer
Answer: B,C
NEW QUESTION # 60
What is a Mist Coverage SLE based upon?
- A. an average of client data
- B. a summary of switch data
- C. an average across APs
- D. a summary of user minutes
Answer: D
Explanation:
Reference:
A Mist Coverage SLE is based upon a summary of user minutes. A user minute is defined as one minute of active client connection to the wireless network. A Mist Coverage SLE tracks the number of user minutes that a client's received signal strength indicator (RSSI) as measured by the access point is below the threshold configured by the network administrator. The RSSI is a measure of how well a client can hear the access point's signal. A low RSSI indicates poor coverage and can result in low throughput, high latency, or dropped connections.
The Mist Coverage SLE allows the network administrator to monitor and troubleshoot the coverage issues on the wireless network. The Mist Coverage SLE also provides classifiers that identify the root causes of poor coverage, such as asymmetry, interference, or low transmit power. The network administrator can use the Mist portal, the Marvis virtual network assistant, or the Mist API to view and manage the Mist Coverage SLE.
NEW QUESTION # 61
Which two domains comprise artificial intelligence (AI)? (Choose two.)
- A. virtualization
- B. deep learning
- C. machine learning
- D. SIEM
Answer: B,C
NEW QUESTION # 62
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