[Jun 09, 2024] New JN0-251 Exam Dumps with High Passing Rate
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The JN0-251 exam is a 65-question, multiple-choice test that is administered in a proctored environment. Candidates have 90 minutes to complete the exam, and a passing score of 65% is required to earn the certification. Upon passing the exam, candidates will receive the JNCIA-MistAI certification, which is valid for three years. Mist AI, Associate (JNCIA-MistAI) certification is an excellent way for IT professionals to demonstrate their expertise in Mist AI and stand out in a competitive job market.
NEW QUESTION # 29
Which Marvis Action category will detect a bad cable based on information and behavior of a single AP?
- A. AP
- B. Connectivity
- C. Layer 1
- D. Switch
Answer: D
Explanation:
Reference:
According to the web search results, the Marvis Action category that will detect a bad cable based on information and behavior of a single AP is Switch1. The Switch category lists the issues related to the switches that are connected to the Mist APs, such as missing VLANs, L2 loops, or bad cables1. The bad cable action detects if an AP is connected to a switch port that has a faulty cable, which can cause packet loss, CRC errors, or link flaps1. The bad cable action is based on the information and behavior of a single AP, such as the AP's MAC address, IP address, switch port, and link status1. The bad cable action also provides a recommended solution, which is to replace the cable or use another switch port1.
NEW QUESTION # 30
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. user home address
- B. the access point to which the client was connected
- C. the MAC address of the client device
- D. the time of the incident
Answer: B,C
NEW QUESTION # 31
Click the Exhibit button.
You notice a green LED emitted from your AP43.
Referring to the exhibit, what does this signal indicate?
- A. The AP is not configured correctly but one user is connected to it.
- B. The AP is configured correctly with no users connected to it.
- C. The AP is configured correctly and at least one user is connected to it.
- D. The AP is not configured correctly with no users connected to it.
Answer: C
NEW QUESTION # 32
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. Helpdesk
- D. Standard
Answer: A,B
NEW QUESTION # 33
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. user home address
- B. the time of the incident
- C. the access point to which the client was connected
- D. the MAC address of the client device
Answer: B,D
NEW QUESTION # 34
You want to review client information about a specific AP.
In this scenario, where in the UI would you look?
- A. Access Points
- B. AP Insights
- C. SLEs
- D. Client Insights
Answer: A
Explanation:
If you want to review client information about a specific AP, you can go to the Access Points page in the Mist UI. The Access Points page shows a list of all the APs that are managed by your site, along with their status, model, firmware, location, and other details1. You can also use the search bar or the filter options to find a specific AP by its name, MAC address, serial number, or tag1.
By clicking on an AP from the list, you can access the AP Details page, which shows more information about the AP, such as its configuration, events, alerts, and insights2. On the AP Details page, you can also see the client information about the AP by clicking on the Clients tab2. The Clients tab shows a list of all the clients that are associated with the AP, along with their status, MAC address, IP address, hostname, role, SSID, VLAN, and other details2. You can also use the search bar or the filter options to find a specific client by its name, MAC address, IP address, or tag2.
By clicking on a client from the list, you can access the Client Details page, which shows more information about the client, such as its connection history, events, alerts, and insights3. On the Client Details page, you can also see the performance metrics of the client, such as its signal strength, data rate, latency, packet loss, throughput, and SLE scores3. You can also use the Troubleshoot button to launch Marvis virtual network assistant and get answers to your questions about the client3.
Therefore, if you want to review client information about a specific AP in the Mist UI, you can look at the Access Points page and then navigate to the AP Details page and the Clients tab.
NEW QUESTION # 35
In a Mist deployment, the Radio Resource Management feature is an example of which type of machine learning?
- A. reinforcement learning
- B. visual learning
- C. unsupervised learning
- D. supervised learning
Answer: A
Explanation:
In a Mist deployment, the Radio Resource Management (RRM) feature is an example of reinforcement learning. Reinforcement learning is a type of machine learning that works on the principle that an agent takes an action which is either penalized or rewarded based on the result in order to reinforce the optimal behavior1.
RRM is a feature that optimizes the wireless network performance and user experience by dynamically adjusting the radio frequency (RF) settings, such as channel, bandwidth, and power, of the access points (APs) based on the changing environmental conditions, such as interference, traffic, or user density2. RRM uses reinforcement learning to learn from the feedback and data collected by the APs and the Mist cloud and to make decisions that improve the network quality of service (QoS) and service level expectations (SLEs)3.
NEW QUESTION # 36
You are inviting a new administrator into a Mist organization.
In this scenario, which two roles are valid? (Choose two.)
- A. Network Admin
- B. Standard
- C. System Admin
- D. Helpdesk
Answer: A,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 # 37
In which two Mist configuration levels would you create labels? (Choose two.)
- A. organization
- B. site
- C. location
- D. switch
Answer: A,B
NEW QUESTION # 38
What is an 802.11 management frame transmitted by an AP?
- A. echo request
- B. ping
- C. beacon
- D. keepalive
Answer: C
Explanation:
Reference:
According to the Wikipedia article on 802.11 Frame Types1, a beacon frame is a type of management frame that contains information about the network and is broadcast by the access point (AP) periodically to announce its presence and provide the necessary information for other devices to join the network. A beacon frame includes the following information elements:
Timestamp: a 64-bit value that represents the time when the AP started to transmit the frame.
Beacon Interval: a 16-bit value that indicates the time interval between beacon transmissions, measured in time units (TUs) of 1024 microseconds.
Capability Information: a 16-bit bitmap that specifies the supported features and capabilities of the network, such as encryption, authentication, and power management.
SSID: a variable-length field that contains the name of the network.
Supported Rates: a variable-length field that lists the data rates supported by the network, in units of 500 kbps.
Other optional information elements, such as country code, channel number, HT and VHT operations, RSN settings, and WMM parameters.
NEW QUESTION # 39
You want to determine where you have coverage issues in your network using Marvis Actions.
Which Marvis Action category should you use in this situation?
- A. Application
- B. Clients
- C. AP
- D. Connectivity
Answer: C
Explanation:
You want to determine where you have coverage issues in your network using Marvis Actions. The Marvis Action category that you should use in this situation is AP. The AP category contains actions that are related to the access points on your network, such as offline APs, health check failed APs, non-compliant APs, and coverage hole APs.
The coverage hole AP action will detect any coverage issues on your site and provide a floorplan visual of the APs on your map experiencing these issues. You can use this visual to find the low coverage spaces identified on your site and make the necessary improvements. You can also view the details of the coverage hole action, such as the number of affected clients, the average RSSI, and the root cause classifier.
To access the AP category of Marvis Actions, you need to navigate to Marvis > Actions and select the AP tab. You will see a list of all the AP actions that are detected on your network. You can filter and sort the actions by various criteria, such as site, severity, status, or date. You can also perform actions on the APs, such as upgrade, RMA, or block.
NEW QUESTION # 40
Which two methods are supported for configuring a Mist environment? (Choose two.)
- A. Use the GUI.
- B. Use the API.
- C. Use the CLI.
- D. Use NETCONF.
Answer: A,B
NEW QUESTION # 41
What is the minimum administrator role needed to invite a user to be an administrator of an organization?
- A. installer
- B. super user
- C. network admin
- D. helpdesk
Answer: B
NEW QUESTION # 42
Which Mist supported API is considered data-driven?
- A. Webhook
- B. RESTful
- C. gRPC
- D. WebSocket
Answer: C
NEW QUESTION # 43
Which statement is correct about a WLAN RF medium?
- A. A WLAN RF is a half-duplex, contention-free medium where the access point polls each station in turn.
- 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, shared medium where 802.11 stations contend with each other for access.
Answer: D
Explanation:
Reference:
According to the Cisco Content Hub1, Wi-Fi is half duplex, meaning we can either transmit (Tx) or receive (Rx) on the medium, the clients and the network take turns accessing the medium. Wi-Fi is contention based, meaning there are rules for stations trying to access the medium and collisions (due to two or more stations simultaneously accessing the medium) are worked out fairly so everyone gets a chance.
NEW QUESTION # 44
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Juniper JN0-251 (Mist AI, Associate) Certification Exam is designed for individuals who want to demonstrate their skills and knowledge in implementing and managing Juniper Mist AI wireless networks. Mist AI, Associate (JNCIA-MistAI) certification is ideal for network professionals who are looking to enhance their skills and advance their careers in the field of wireless networking. Mist AI, Associate (JNCIA-MistAI) certification exam validates the candidate's ability to configure and troubleshoot Juniper Mist AI wireless networks, including access points, clients, and network services.
The JN0-251 exam is intended for IT professionals who have a basic understanding of networking and cloud computing. Candidates who are interested in taking the exam should have experience in deploying and managing wireless networks. JN0-251 exam covers a wide range of topics, including Mist AI architecture, access points, policies, and troubleshooting. Candidates will also be tested on their knowledge of Mist AI features and capabilities, such as self-driving networks, location services, and analytics.
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