Practice Examples and Dumps & Tips for 2023 Latest JN0-251 Valid Tests Dumps
Latest [Dec 27, 2023] 100% Passing Guarantee - Brilliant JN0-251 Exam Questions PDF
NEW QUESTION # 22
Which statement is correct about Mist AP packet capture?
- A. You can only configure wired packet captures manually.
- B. You can only configure wireless packet captures manually.
- C. You can configure a wired or wireless packet capture manually.
- D. You can only trigger wired or wireless packet captures dynamically.
Answer: C
Explanation:
According to the web search results, Mist AP packet capture is a feature that allows you to capture packets from a specific AP or client and analyze them using a tool such as Wireshark1. Packet capture can help you troubleshoot and diagnose various wireless issues, such as DHCP errors, authentication failures, or roaming problems1. You can configure a wired or wireless packet capture manually by using the Mist portal or the Mist AI app23.
To configure a wired packet capture manually, you can go to Network > Packet Captures in the Mist portal and select the AP and the TCP dump expression that you want to capture packets for2. The TCP dump expression is a filter that specifies the type, source, destination, and port of the packets that you want to capture2. You can use the TCP dump expression builder to create your expression or edit it directly if you are familiar with the syntax2. You can also adjust the packet capture settings, such as the number of packets, duration, and maximum packet length2. Once you start the capture, you can download the PCAP file and open it in Wireshark for analysis2.
To configure a wireless packet capture manually, you can go to Network > Packet Captures in the Mist portal and select the AP and the WLAN that you want to capture packets for3. You can also adjust the packet capture settings, such as the number of packets, duration, and maximum packet length3. Once you start the capture, you can download the PCAP file and open it in Wireshark for analysis3. Alternatively, you can use the Mist AI app to scan the QR code on the AP and start a wireless packet capture from your mobile device3.
NEW QUESTION # 23
Which administrator role must you have to view audit logs?
- A. Network Admin
- B. Super User
- C. Installer
- D. Observer
Answer: D
NEW QUESTION # 24
Which two statements are correct about microservices? (Choose two.)
- A. Each microservice uses the same virtual hardware.
- B. A microservice can be added without system downtime.
- C. A microservice can be updated without system downtime.
- D. All microservices can be updated at the same time without downtime.
Answer: B,C
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 # 25
In a Mist deployment, the Radio Resource Management feature is an example of which type of machine learning?
- A. unsupervised learning
- B. reinforcement learning
- C. visual learning
- D. supervised learning
Answer: B
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 # 26
Which statement is correct about Marvis Actions?
- A. It summarizes user trouble tickets and detected AP problems.
- B. It automatically issues an RMA for an AP.
- C. It automatically detects and reports network problems.
- D. It summarizes all of the misconfigured WLANs at a site.
Answer: C
Explanation:
Reference:
According to the web search results, Marvis Actions is a feature that automatically detects and reports network problems that affect the user experience in an organization1. Marvis Actions uses the Mist AI to identify the root cause of issues and provide recommended solutions or automated fixes1. Marvis Actions can provide insight into issues across the wired, WAN, and wireless networks, at the managed service provider (MSP) level, organization level, and site level1. Marvis Actions can help network administrators monitor, troubleshoot, and optimize their network by providing real-time and historical data and analytics1.
NEW QUESTION # 27
What are two valid Mist subscription status states in the Mist GUI? (Choose two.)
- A. Perpetual
- B. Expired
- C. Exceeded
- D. Staged
Answer: B,C
NEW QUESTION # 28
Which two methods are supported for configuring a Mist environment? (Choose two.)
- A. Use the API.
- B. Use the CLI.
- C. Use the GUI.
- D. Use NETCONF.
Answer: A,B
NEW QUESTION # 29
Which statement defines the total user minutes?
- A. The total amount of device uptime over the last seven days.
- B. The total number of minutes for which Mist has statistics for each client.
- C. The average number of minutes that all clients have been associated to the network.
- D. The total number of minutes between a client's last association and disassociation.
Answer: B
NEW QUESTION # 30
Which Marvis Action category will detect a bad cable based on information and behavior of a single AP?
- A. Switch
- B. AP
- C. Connectivity
- D. Layer 1
Answer: D
NEW QUESTION # 31
Which device categories are included in WAN Assurance? (Choose two.)
- A. Mist Edge
- B. SSR
- C. EX
- D. SRX
Answer: B,D
Explanation:
WAN Assurance is a cloud-based service that provides visibility and insights into the WAN performance and user experience. WAN Assurance supports two device categories: SSR and SRX. SSR stands for Session Smart Router, which is a software-defined WAN (SD-WAN) solution that delivers high-performance, secure, and reliable connectivity for distributed enterprises. SRX stands for Services Gateway, which is a next-generation firewall (NGFW) that provides advanced security and threat prevention for branch and remote locations.
WAN Assurance does not support EX or Mist Edge devices. EX is a series of Ethernet switches that provide high-performance, scalable, and secure switching for campus and data center networks. Mist Edge is a device that extends the Mist Cloud to the edge of the network, enabling local processing of WLAN functions, such as authentication, encryption, and firewall.
You can find more information about WAN Assurance in the Juniper TechLibrary1 or the Juniper Mist WAN Assurance Overview2.
NEW QUESTION # 32
Click the Exhibit button.
Referring to the exhibit, which Marvis language would you use to query Mist about an issue?
- A. Python
- B. SQL
- C. query language
- D. natural language
Answer: D
Explanation:
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.
NEW QUESTION # 33
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 802.11 stations can transmit and receive at the same time.
- C. A WLAN RF is a half-duplex, shared medium where 802.11 stations contend with each other for access.
- D. A WLAN RF is a full duplex, contention free medium where each client transmits on a separate channel.
Answer: C
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 # 34
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. Connectivity
- B. AP
- C. Clients
- D. Application
Answer: A
NEW QUESTION # 35
Which statement is correct about Mist SLEs?
- A. A Mist classifier is comprised of multiple SLEs.
- B. A Mist SLE is comprised of a single classifier.
- C. A Mist classifier is comprised of a single SLE.
- D. A Mist SLE is comprised of multiple classifiers.
Answer: D
NEW QUESTION # 36
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: D
NEW QUESTION # 37
Click the Exhibit button.
Referring to the exhibit, which Marvis language would you use to query Mist about an issue?
- A. natural language
- B. query language
- C. Python
- D. SQL
Answer: B
NEW QUESTION # 38
Which two statements are correct about microservices? (Choose two.)
- A. Each microservice uses the same virtual hardware.
- B. A microservice can be added without system downtime.
- C. A microservice can be updated without system downtime.
- D. All microservices can be updated at the same time without downtime.
Answer: B,C
NEW QUESTION # 39
Which Marvis Action category will detect a bad cable based on information and behavior of a single AP?
- A. Switch
- B. Layer 1
- C. AP
- D. Connectivity
Answer: A
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 # 40
Which two statements are correct about an Organization ID? (Choose two.)
- A. The Organization ID is manually defined by the user.
- B. The Organization ID is randomly created by the system.
- C. The Organization ID is used to identify the organization when using APIs.
- D. The Organization ID is the encrypted version of the Organization Name field.
Answer: B,C
NEW QUESTION # 41
What are three alert levels used in the Mist UI? (Choose three.)
- A. error
- B. warning
- C. informational
- D. notice
- E. critical
Answer: B,D,E
NEW QUESTION # 42
Which characteristic describes Mist's cloud software architecture?
- A. shard based
- B. monolithic code
- C. microservices based
- D. controller based
Answer: C
Explanation:
Reference:
The correct answer is A. microservices based. This is the characteristic that describes Mist's cloud software architecture. Mist's cloud software architecture is based on microservices, which are small, independent, and loosely coupled software components that communicate with each other through APIs1. Microservices allow for faster development, deployment, scaling, and maintenance of cloud applications, as well as improved reliability, performance, and security1. Mist's cloud software architecture leverages microservices to provide AI-driven network management and operations, as well as innovative features such as vBLE engagement, Marvis Virtual Network Assistant, and Wi-Fi Assurance2.
NEW QUESTION # 43
Which administrator role is based on a timed grace period for Mist site and AP configuration access?
- A. Installer
- B. Helpdesk
- C. Network Admin
- D. Observer
Answer: A
Explanation:
Reference:
According to the Administrator Roles page, the Installer role is based on a timed grace period for Mist site and AP configuration access1. The Installer role has minimum access to the organization and can do the initial installation tasks such as claim AP to Org, assign AP to site, or place on map, etc1. However, the Installer role cannot unclaim or remove the AP from the Org1. The site and AP access for the Installer role is based on a timed grace period after the last modified time, which is by default 7 days1. This means that the Installer role can only access the site and AP for 7 days after the last configuration change1. The Installer role uses the API and Mist AI App, and has no access to the native Admin UI1.
NEW QUESTION # 44
How does Mist detect rogue APs?
- A. by using the AP's 5 GHz radio band
- B. by using Radio Resource Management (RRM)
- C. by using the AP's third dedicated radio
- D. by using the AP's 2.4 GHz radio band
Answer: C
Explanation:
Reference:
According to the web search results, Mist detects rogue APs by using the AP's third dedicated radio, which is used for scanning the wireless spectrum and detecting unauthorized APs on both 2.4 GHz and 5 GHz radio bands1. A rogue AP is an unauthorized access point that is installed on a network without the knowledge or consent of the network administrator1. 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 attacks1. A rogue AP can also interfere with the performance of the legitimate APs and cause network congestion or degradation1.
Mist APs have three radios: one for 2.4 GHz, one for 5 GHz, and one for scanning1. The scanning radio is used for detecting rogue, neighbor, and honeypot APs on both 2.4 GHz and 5 GHz radio bands1. This means that regardless of which radios you have enabled on your AP (2.4 GHz or 5 GHz), it will still be able to detect unauthorized APs at any frequency using the scanning radio1. The scanning radio can also provide other benefits, such as monitoring the network performance, optimizing the channel selection, and enhancing the location services1.
Therefore, based on the web search results, Mist detects rogue APs by using the AP's third dedicated radio, which is used for scanning the wireless spectrum and detecting unauthorized APs on both 2.4 GHz and 5 GHz radio bands.
NEW QUESTION # 45
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 MAC address of the client device
- D. the access point to which the client was connected
Answer: C,D
NEW QUESTION # 46
Which two Mist-supported APIs are considered event-driven? (Choose two.)
- A. RESTful
- B. WebSocket
- C. gRPC
- D. Webhook
Answer: B,D
NEW QUESTION # 47
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The Juniper JN0-251 exam consists of various types of questions, including multiple-choice, true/false, and drag-and-drop questions. JN0-251 exam is designed to test the candidate's knowledge of the Mist AI platform, including its features, functionality, and implementation. JN0-251 exam is divided into various sections, which cover different topics related to the Mist AI platform. These topics include the features and functionality of Mist AI, the implementation of Mist AI, and troubleshooting Mist AI issues.
Juniper JN0-251 certification is highly regarded in the industry, and it is a valuable credential for IT professionals looking to advance their careers in network administration or engineering. By earning this certification, candidates can demonstrate their expertise in deploying and managing Juniper Mist AI technology, and they can differentiate themselves from other IT professionals in the job market.
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