最新のJN0-251合格保証付き試験問題集の認定サンプル問題
最新JN0-251テスト材料には有効なJN0-251テストエンジン
質問 # 10
In a Mist deployment, the Radio Resource Management feature is an example of which type of machine learning?
- A. unsupervised learning
- B. visual learning
- C. reinforcement learning
- D. supervised learning
正解：C
解説：
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.
質問 # 11
Mist cloud supports single sign-on in which two scenarios? (Choose two.)
- A. account login used for NETCONF
- B. Wi-Fi guest login access
- C. account login used for the RESTful API
- D. admin login to the Mist portal
正解：B、C
質問 # 12
Which protocol is used by Mist access points to discover third-party switches?
- A. LLDP
- B. ICMP
- C. SNMP
- D. CDP
正解：A
解説：
Reference:
The protocol that is used by Mist access points to discover third-party switches is LLDP. LLDP stands for Link Layer Discovery Protocol and is a vendor-neutral protocol that allows devices to advertise and discover information about their identity, capabilities, and neighbors on a local area network. LLDP operates on the data link layer (Layer 2) of the OSI model and uses multicast frames to exchange information.
Mist access points use LLDP to discover the switch name, model, firmware version, port number, VLAN ID, and PoE status of the connected third-party switches. This information is then sent to the Mist cloud, where it is processed and displayed in the Mist portal. You can view the switch details and topology in the Switches tab of the Mist portal1. You can also use the Marvis virtual network assistant to query the switch information using natural language commands.
質問 # 13
You want to obtain detailed information on a wireless client.
In this scenario, which area would you use to accomplish this task?
- A. Security
- B. SLEs
- C. Insights
- D. Templates
正解：C
解説：
The area that you would use to obtain detailed information on a wireless client is the Insights area. The Insights area provides a comprehensive view of the wireless network performance and user experience, including the client dashboard, the live view, the service-level expectations (SLEs), and the Marvis virtual network assistant.
The client dashboard allows you to view and search for individual wireless clients and see their connection details, such as device type, MAC address, IP address, SSID, AP name, signal strength, throughput, data usage, location, and more. You can also perform actions on the clients, such as block, unblock, or capture packets.
The live view allows you to monitor the real-time status and activity of the wireless network and clients. You can see the number of connected clients, the traffic volume, the SLE scores, the top APs and SSIDs, and more. You can also filter and drill down into specific clients, APs, SSIDs, or sites.
The SLEs allow you to define and measure the quality of service and user experience for the wireless network. You can set thresholds and goals for key metrics, such as throughput, coverage, capacity, roaming, uptime, and WAN. You can also receive alerts and recommendations when the SLEs are violated.
The Marvis virtual network assistant allows you to interact with the wireless network using natural language commands. You can ask questions, troubleshoot issues, perform actions, and get insights from Marvis. For example, you can ask Marvis to show you the details of a wireless client or to explain why a client had a poor connection.
質問 # 14
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 the encrypted version of the Organization Name field.
- D. The Organization ID is manually defined by the user.
正解：A、B
質問 # 15
You are inviting a new administrator into a Mist organization.
In this scenario, which two roles are valid? (Choose two.)
- A. Observer
- B. Installer
- C. Advanced
- D. Custom
正解：A、B
質問 # 16
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
質問 # 17
You have just brought online a new site of AP43s. While verifying that everything looks good, you notice that all of the access points (APs) are reporting "insufficient power." The APs are connected to an 802. 3at-capable switch.
In this scenario, what would be the cause of the error?
- A. The APs' firmware must be upgraded.
- B. LLDP-MED is not configured on the switch.
- C. The Ethernet cable is plugged into the wrong port on the AP.
- D. The cable run to each AP is too long.
正解：B
質問 # 18
Which two domains comprise artificial intelligence (AI)? (Choose two.)
- A. virtualization
- B. deep learning
- C. SIEM
- D. machine learning
正解：B、D
解説：
Reference:
machine learning and deep learning are two domains that comprise artificial intelligence (AI). AI is the ability of a computer or a robot to perform tasks that normally require human intelligence, such as reasoning, learning, or problem-solving1. AI can be applied to various fields and industries, such as healthcare, finance, education, and entertainment1.
Machine learning is a subset of AI that enables computers to learn from data and experience without being explicitly programmed2. Machine learning uses algorithms and statistical models to analyze data and find patterns, correlations, or predictions2. Machine learning can be used for various tasks, such as image recognition, natural language processing, recommender systems, or fraud detection2.
Deep learning is a subset of machine learning that uses artificial neural networks to mimic the structure and function of the human brain3. Deep learning can process large amounts of complex and unstructured data, such as images, videos, or texts3. Deep learning can be used for various tasks, such as face recognition, speech recognition, natural language generation, or self-driving cars3.
質問 # 19
Click the Exhibit button.
Referring to the exhibit, which Marvis language would you use to query Mist about an issue?
- A. natural language
- B. Python
- C. SQL
- D. query language
正解：D
質問 # 20
Which two statements are correct about creating Mist sites? (Choose two.)
- A. A Mist site can belong to multiple organizations.
- B. You can create and manage multiple sites with a Mist account.
- C. A Mist site can only belong to a single organization.
- D. You can only create and manage a single site with a Mist account.
正解：A、B
質問 # 21
Which two statements are correct about label configuration? (Choose two.)
- A. Labels created at the site level can be applied at the organization level.
- B. Labels can only be created at the organization level.
- C. Labels can be created at either the organization level or site level.
- D. Labels created at the organization level can be used in WLAN templates.
正解：C、D
解説：
According to the web search results, labels are a key feature for Mist, as they can be used to make decisions and policies easier to understand. Labels are similar to tags or groups that represent a collection of users or resources. Labels can be used to classify your users and resources while building the WxLAN policies, which define a list of rules, restrictions, and other settings that can be applied to devices in order to change how they are treated by the network1. Labels can also be used to create a group of access points and apply a WLAN configuration using the apply to Access Points configuration while creating a WLAN1.
質問 # 22
Which Mist supported API is considered data-driven?
- A. gRPC
- B. RESTful
- C. Webhook
- D. WebSocket
正解：A
質問 # 23
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. Connectivity
- C. Clients
- D. AP
正解：D
解説：
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.
質問 # 24
Click the Exhibit button.
Referring to the exhibit, which Marvis language would you use to query Mist about an issue?
- A. natural language
- B. Python
- C. query language
- D. SQL
正解：A
解説：
Referring to the exhibit, the Marvis language that you would use to query Mist about an issue is natural language. Natural language is the language that humans use to communicate with each other, such as English, Spanish, or Hindi. Natural language is different from formal or programming languages, such as SQL, Python, or query language, which have strict rules and syntax.
Marvis is a virtual network assistant that allows you to interact with the Mist network using natural language commands. You can type or speak your queries to Marvis in plain English and get answers in a conversational manner. For example, you can ask Marvis questions like "Why is my Wi-Fi slow?" or "How many devices are connected to AP1?" or "Show me the throughput of SSID2". Marvis will understand your intent and provide relevant information, insights, and actions.
Marvis uses natural language processing (NLP) to analyze and interpret your queries. NLP is a branch of artificial intelligence that deals with the interaction between computers and human languages. NLP involves various tasks, such as speech recognition, natural language understanding (NLU), natural language generation (NLG), sentiment analysis, machine translation, etc.
質問 # 25
Which statement is correct about Marvis Actions?
- A. It automatically detects and reports network problems.
- B. It summarizes user trouble tickets and detected AP problems.
- C. It summarizes all of the misconfigured WLANs at a site.
- D. It automatically issues an RMA for an AP.
正解：A
質問 # 26
Which two statements about the Mist UI are true? (Choose two.)
- A. It can initiate a BLE packet capture.
- B. It can initiate a wireless packet capture.
- C. It can initiate a packet capture on cloud uplink.
- D. It can initiate a wired packet capture.
正解：B、D
解説：
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.
質問 # 27
Which two methods are supported for configuring a Mist environment? (Choose two.)
- A. Use the GUI.
- B. Use NETCONF.
- C. Use the API.
- D. Use the CLI.
正解：A、C
質問 # 28
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. wireless design software
- B. spectrum analyzer
- C. WLAN scanner
- D. protocol analyzer
正解：B
質問 # 29
Which statement is correct about Mist SLEs?
- A. A Mist SLE is comprised of multiple classifiers.
- B. A Mist classifier is comprised of a single SLE.
- C. A Mist SLE is comprised of a single classifier.
- D. A Mist classifier is comprised of multiple SLEs.
正解：A
質問 # 30
You are inviting a new administrator into a Mist organization.
In this scenario, which two roles are valid? (Choose two.)
- A. Advanced
- B. Observer
- C. Installer
- D. Custom
正解：A、B
質問 # 31
In which two Mist configuration levels would you create labels? (Choose two.)
- A. site
- B. location
- C. organization
- D. switch
正解：A、C
質問 # 32
Which administrator role is based on a timed grace period for Mist site and AP configuration access?
- A. Helpdesk
- B. Installer
- C. Observer
- D. Network Admin
正解：B
質問 # 33
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JN0-251更新された試験問題集で[2023年最新] 練習には有効な試験問題集：https://drive.google.com/open?id=1tnqUE7qk1FUXwezEhCZF6Ac7fSK1tDb1