2024 Valid JN0-251 test answers & Juniper Exam PDF
Free Juniper JN0-251 Exam Questions and Answer from Training Expert CertkingdomPDF
The Mist AI, Associate (JNCIA-MistAI) certification is aimed at IT professionals who want to develop their skills in AI-driven networking solutions. The Juniper JN0-251 exam covers a variety of topics related to Juniper Mist AI, including the fundamentals of AI-driven networking, the deployment and configuration of Juniper Mist AI solutions, and the management and troubleshooting of these solutions. Mist AI, Associate (JNCIA-MistAI) certification is designed to validate the skills and knowledge of IT professionals in the implementation of AI-driven networking solutions.
Juniper JN0-251 certification is recognized globally and is highly valued by IT companies. Mist AI, Associate (JNCIA-MistAI) certification demonstrates an individual's expertise in Juniper Mist AI technology and enhances their job prospects. Certified individuals can also expect to earn higher salaries than their non-certified counterparts.
NEW QUESTION # 22
In a production network, what are two types of security threats? (Choose two.)
- A. scanning radio
- B. rogue AP
- C. neighbor AP
- D. honeypot AP
Answer: A,B
Explanation:
A rogue AP is an unauthorized access point that is installed on a network without the knowledge or consent of the network administrator. A rogue AP can pose a serious security threat to a network, as it can allow attackers to bypass the network's security policies and gain access to sensitive data or launch other attacks. A rogue AP can also interfere with the performance of the legitimate APs and cause network congestion or degradation.
A scanning radio is a device that can scan the wireless spectrum and detect the presence and characteristics of wireless networks. A scanning radio can be used for legitimate purposes, such as network monitoring, troubleshooting, or optimization. However, a scanning radio can also be used for malicious purposes, such as discovering vulnerable networks, capturing network traffic, or launching denial-of-service attacks. A scanning radio can pose a security threat to a network, as it can expose the network's SSID, encryption type, channel, and signal strength.
NEW QUESTION # 23
Which two categories are included in the Connectivity Marvis Action? (Choose two.)
- A. Offline AP
- B. Bad Cable
- C. ARP Failure
- D. DNS Failure
Answer: A,D
NEW QUESTION # 24
Which statement is correct about Mist SLEs?
- A. A Mist classifier is comprised of multiple SLEs.
- B. A Mist classifier is comprised of a single SLE.
- C. A Mist SLE is comprised of multiple classifiers.
- D. A Mist SLE is comprised of a single classifier.
Answer: C
NEW QUESTION # 25
What is an advantage of using the Juniper Mist cloud compared to traditional on-premises WLAN controllers?
- A. Machine learning occurs through microservices.
- B. The ability to configure Mist cloud using any connected AP.
- C. Mist updates occur daily.
- D. More robust AP encryption occurs.
Answer: C
NEW QUESTION # 26
Users are complaining about WLAN performance and the Mist dashboard reports non-Wi-Fi interference.
Which diagnostics tool would you use to further investigate this issue on-site and determine the location of the interference?
- A. protocol analyzer
- B. spectrum analyzer
- C. WLAN scanner
- D. wireless design software
Answer: B
NEW QUESTION # 27
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 number of minutes for which Mist has statistics for each client.
- C. The total number of minutes between a client's last association and disassociation.
- D. The total amount of device uptime over the last seven days.
Answer: B
Explanation:
According to the web search results, the statement that defines the total user minutes is the total number of minutes for which Mist has statistics for each client. Total user minutes is a metric that measures the amount of time that clients are connected to the wireless network and have data available for analysis1. Total user minutes is calculated by summing up the number of minutes that each client is associated to the network and has statistics collected by Mist1. Total user minutes can be used to evaluate the network performance, user experience, and service level expectations (SLEs) of the wireless network1.
NEW QUESTION # 28
In a production network, what are two types of security threats? (Choose two.)
- A. scanning radio
- B. rogue AP
- C. neighbor AP
- D. honeypot AP
Answer: A,B
NEW QUESTION # 29
Which two statements about the Mist UI are true? (Choose two.)
- A. It can initiate a wired packet capture.
- B. It can initiate a packet capture on cloud uplink.
- C. It can initiate a wireless packet capture.
- D. It can initiate a BLE packet capture.
Answer: A,C
Explanation:
Reference:
According to the official Mist documentation1, wireless packet captures are helpful when trying to dissect and dig down into the root cause of any wireless issue between a client and AP. You can determine if packets being sent are actually reaching their destination as well as identify if packets are corrupted. With the enhanced packet capture flow, Mist also introduced the ability to capture packets on the wired side of your network as well. This data is captured from the Eth0 port of your AP, and will examine the packets between the AP and the rest of your wired network. This includes any RADIUS, DHCP, or DNS servers you have set up.
The Mist UI does not support BLE packet capture or packet capture on cloud uplink.
NEW QUESTION # 30
What is a Mist Coverage SLE based upon?
- A. a summary of user minutes
- B. a summary of switch data
- C. an average across APs
- D. an average of client data
Answer: A
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 # 31
Which statement is correct about Marvis Actions?
- A. It automatically issues an RMA for an AP.
- B. It automatically detects and reports network problems.
- C. It summarizes user trouble tickets and detected AP problems.
- D. It summarizes all of the misconfigured WLANs at a site.
Answer: B
NEW QUESTION # 32
Which two statements are correct about an Organization ID? (Choose two.)
- A. The Organization ID is used to identify the organization when using APIs.
- B. The Organization ID is randomly created by the system.
- C. The Organization ID is manually defined by the user.
- D. The Organization ID is the encrypted version of the Organization Name field.
Answer: A,B
Explanation:
The Organization ID is a unique identifier that is randomly created by the system when you create a new organization in the Mist portal. The Organization ID is used to identify the organization when using APIs, such as the REST API or the GraphQL API. You can find your Organization ID in the Organization > Settings page in the Mist portal12.
The Organization ID is not the encrypted version of the Organization Name field. The Organization Name field is a user-defined name that can be changed at any time. The Organization ID is a system-generated string that cannot be changed.
The Organization ID is not manually defined by the user. The user cannot choose or modify the Organization ID. The user can only create or edit the Organization Name field.
NEW QUESTION # 33
Which machine learning method involves rewarding and punishing an agent?
- A. supervised learning
- B. unsupervised learning
- C. deep learning
- D. reinforcement learning
Answer: D
NEW QUESTION # 34
Which Marvis Action category will detect a bad cable based on information and behavior of a single AP?
- A. Layer 1
- B. Switch
- C. Connectivity
- D. AP
Answer: B
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 # 35
Which two methods are supported for configuring a Mist environment? (Choose two.)
- A. Use NETCONF.
- B. Use the CLI.
- C. Use the GUI.
- D. Use the API.
Answer: C,D
NEW QUESTION # 36
You just received the newest Mist AP and want to enable a feature that is only available at this time on Release Candidate 1.
In this scenario, using the Mist GUI, where would you determine which version of Release Candidate 1 is available for your AP?
- A. Support Tickets and Documentation -> Firmware Updates
- B. Support Tickets and Documentation -> Mist Edge Updates
- C. Support Tickets and Documentation -> Ports & Endpoints
- D. Support Tickets and Documentation -> Feature Updates
Answer: A
Explanation:
Reference:
If you want to enable a feature that is only available on Release Candidate 1, you need to upgrade your AP to the latest firmware version that supports that feature. To do that, you can use the Firmware Upgrade feature in the Mist GUI, which allows you to automatically or manually upgrade multiple APs on your site1. To find out which version of Release Candidate 1 is available for your AP, you can go to Support Tickets and Documentation -> Firmware Updates in the Mist GUI. There, you will see a list of the latest firmware versions for different AP models, along with the release notes and the features they support2. You can also use the ? mark in the upper right of the UI to see the latest firmware and previous production releases1. You can then select the desired firmware version from the dropdown menu and start the upgrade process1.
NEW QUESTION # 37
What is a Mist Coverage SLE based upon?
- A. a summary of user minutes
- B. a summary of switch data
- C. an average across APs
- D. an average of client data
Answer: A
NEW QUESTION # 38
Referring to the exhibit, what do you determine about the site's Time to Connect SLE metric?
- A. Successful connect averaged 1.6 seconds.
- B. All clients cannot connect to the Internet.
- C. Eighty percent of the Time to Connect failures are related to DHCP failures
- D. Time to Connect Association DHCP failures impacted 80% of users.
Answer: C
NEW QUESTION # 39
Besides providing AP configuration status, for which other purpose is the LED used in the location design phase?
- A. antenna orientation
- B. frequency selection
- C. height orientation
- D. channels in use
Answer: A
Explanation:
According to the web search results, the LED on a Mist AP can be used for antenna orientation in the location design phase, besides providing AP configuration status. The location design phase is the process of planning and deploying a wireless network that can provide accurate and reliable location services, such as indoor positioning, wayfinding, or asset tracking1. Antenna orientation is an important factor that affects the performance and accuracy of location services, as it determines the coverage and signal strength of the APs2.
The LED on a Mist AP can be used to indicate the antenna orientation by showing different colors and patterns depending on the angle of the AP3. For example, a blue LED means that the AP is facing down, a green LED means that the AP is tilted at 45 degrees, and a red LED means that the AP is facing up3. By using the LED as a guide, the network installer can easily adjust the angle of the AP to achieve the optimal coverage and location accuracy3. The LED can also be controlled remotely by using the Mist AI app or the Mist portal3.
Therefore, based on the web search results, the LED on a Mist AP can be used for antenna orientation in the location design phase, besides providing AP configuration status. This feature can help improve the quality and efficiency of location services in various scenarios, such as retail, hospitality, or healthcare1.
NEW QUESTION # 40
You are asked to invite a new user to administer specific sites in read-only mode.
Which two roles are available to the new user? (Choose two.)
- A. Installer
- B. Observer
- C. Network Admin
- D. Helpdesk
Answer: B,C
NEW QUESTION # 41
You are inviting a new administrator into a Mist organization.
In this scenario, which two roles are valid? (Choose two.)
- A. Helpdesk
- B. Standard
- C. Network Admin
- D. System Admin
Answer: A,C
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 # 42
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