[May 09, 2024] JN0-251 Dumps PDF and Test Engine Exam Questions - CertkingdomPDF
Verified JN0-251 exam dumps Q&As with Correct 79 Questions and Answers
Juniper JN0-251 certification exam covers a wide range of topics, including Juniper Mist AI architecture, access point deployment, wireless LAN configuration, and troubleshooting. JN0-251 exam also tests the candidate's understanding of various network services such as authentication, security, and quality of service (QoS). Passing the JN0-251 certification exam demonstrates the candidate's proficiency in deploying and managing Juniper Mist AI wireless networks, making them a valuable asset to any organization that relies on wireless networking technology.
NEW QUESTION # 25
Which two categories are included in the Connectivity Marvis Action? (Choose two.)
- A. ARP Failure
- B. DNS Failure
- C. Bad Cable
- D. Offline AP
Answer: C,D
Explanation:
These are two categories that are included in the Connectivity Marvis Action. The Connectivity Marvis Action lists the network issues that affect the connectivity of devices, users, or applications in the Juniper Mist cloud. The Offline AP category shows the APs that are offline or unreachable by the Juniper Mist cloud. The Bad Cable category shows the switches or APs that have bad cables or ports1. The other two categories, C. ARP Failure and D. DNS Failure, are not part of the Connectivity Marvis Action, but they are part of the Network Services Marvis Action. The Network Services Marvis Action lists the network issues that affect the network services such as DHCP, DNS, ARP, and NTP1.
NEW QUESTION # 26
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 and at least one user is connected to it.
- C. The AP is configured correctly with no users connected to it.
- D. The AP is not configured correctly with no users connected to it.
Answer: B
NEW QUESTION # 27
In which two Mist configuration levels would you create labels? (Choose two.)
- A. location
- B. switch
- C. organization
- D. site
Answer: C,D
Explanation:
Reference:
Labels are a way of grouping devices, users, or applications in the Juniper Mist cloud. Labels can be created at the site level or the organization level1. Labels can be used to apply policies, templates, or service-level expectations (SLEs) to the devices, users, or applications that match the label criteria1. Labels can also be used to filter data in the Juniper Mist dashboard or reports1.
NEW QUESTION # 28
Which Mist supported API is considered data-driven?
- A. gRPC
- B. WebSocket
- C. Webhook
- D. RESTful
Answer: A
NEW QUESTION # 29
Which statement is correct about a WLAN RF medium?
- A. A WLAN RF is a full-duplex, contention-free medium where 802.11 stations can transmit and receive at the same time.
- 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 half-duplex, contention-free medium where the access point polls each station in turn.
- 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 # 30
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 # 31
Which two statements are correct about creating Mist sites? (Choose two.)
- A. You can create and manage multiple sites with a Mist account.
- B. You can only create and manage a single site with a Mist account.
- C. A Mist site can only belong to a single organization.
- D. A Mist site can belong to multiple organizations.
Answer: A,C
Explanation:
Reference:
The correct statements about creating Mist sites are:
A Mist site can only belong to a single organization. An organization is a logical grouping of sites and devices that share common settings and policies. A site is a physical location that contains one or more Mist devices. A site can only be associated with one organization and cannot be shared or moved to another organization1.
You can create and manage multiple sites with a Mist account. A Mist account is a user account that allows you to access the Mist portal and the Mist API. You can create and manage multiple sites within an organization or across different organizations with a Mist account, depending on your administrator role and permissions2.
NEW QUESTION # 32
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 # 33
What does Mist with Wi-Fi Assurance do to detect a bad cable connected to an AP?
- A. It sends probe traffic through the cable connections.
- B. It monitors SNMP trap information.
- C. It applies machine learning to telemetry data.
- D. It performs cable tests.
Answer: D
Explanation:
Reference:
%20impaired
NEW QUESTION # 34
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. wireless design software
- C. WLAN scanner
- D. spectrum analyzer
Answer: D
Explanation:
Reference:
The correct answer is A. spectrum analyzer. This is the diagnostics tool that you would use to further investigate the issue of non-Wi-Fi interference on-site and determine the location of the interference. A spectrum analyzer is a device that measures and displays the frequency and amplitude of the electromagnetic signals in a given spectrum1. A spectrum analyzer can help you identify the sources and types of non-Wi-Fi interference, such as microwave ovens, cordless phones, Bluetooth devices, or radar systems, that may affect the WLAN performance2. A spectrum analyzer can also help you locate the interference by showing the signal strength and direction of the interfering signals2.
NEW QUESTION # 35
Under ideal conditions, which frequency band will have the farthest usable range?
- A. 900 MHz
- B. 6 GHz
- C. 2.4 GHz
- D. 5 GHz
Answer: A
Explanation:
Reference:
The correct answer is A. 900 MHz. This is the frequency band that will have the farthest usable range under ideal conditions. The range of a wireless signal depends on several factors, such as the transmit power, the antenna gain, the receiver sensitivity, the propagation environment, and the interference level1. However, in general, lower frequency signals can travel farther than higher frequency signals, as they have less attenuation (signal loss) and can penetrate solid objects better2. The 900 MHz band is a lower frequency band than the 2.4 GHz, 5 GHz, and 6 GHz bands, which are commonly used for Wi-Fi and other wireless technologies3. Therefore, the 900 MHz band will have the farthest usable range under ideal conditions. However, the 900 MHz band also has less bandwidth and speed than the higher frequency bands, as well as more interference from other devices that use the same band3. Therefore, the 900 MHz band may not be suitable for some wireless applications that require high data rates or low latency.
NEW QUESTION # 36
Which two domains comprise artificial intelligence (AI)? (Choose two.)
- A. machine learning
- B. deep learning
- C. SIEM
- D. virtualization
Answer: A,B
NEW QUESTION # 37
Which statement is correct about Marvis Actions?
- A. It summarizes user trouble tickets and detected AP problems.
- B. It summarizes all of the misconfigured WLANs at a site.
- C. It automatically detects and reports network problems.
- D. It automatically issues an RMA for an AP.
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 # 38
What is a feature within Mist AI that uses unsupervised machine learning?
- A. Alerting
- B. vBLE engagement
- C. Insights
- D. Service Level Expectations
Answer: C
Explanation:
Reference:
The correct answer is B. Insights. Insights is a feature within Mist AI that uses unsupervised machine learning to provide network and location analytics. Insights uses data from various sources, such as Juniper Mist Access Points, Switches, Session Smart Routers, and Firewalls, to generate reports and dashboards that show the performance, behavior, and trends of devices, users, and applications in the network1. Insights can also detect anomalies and outliers in the data, such as unusual traffic patterns, device failures, or security incidents1. Insights helps network operators and business owners gain visibility and insight into their network and location operations1.
NEW QUESTION # 39
Which two SLEs report DHCP problems? (Choose two.)
- A. Capacity
- B. Throughput
- C. Successful Connects
- D. Time to Connect
Answer: C,D
NEW QUESTION # 40
Which statement is correct about Mist AP packet capture?
- A. You can configure a wired or wireless packet capture manually.
- B. You can only configure wireless packet captures manually.
- C. You can only trigger wired or wireless packet captures dynamically.
- D. You can only configure wired packet captures manually.
Answer: C
NEW QUESTION # 41
Which protocol does the REST API use?
- A. SNMP
- B. SSL
- C. syslog
- D. HTTP
Answer: D
Explanation:
Reference:
The protocol that the REST API uses is HTTP. HTTP stands for Hypertext Transfer Protocol and is a standard protocol for exchanging information between different applications or services over the internet. HTTP defines a set of methods, such as GET, POST, PUT, and DELETE, that specify the type of action to be performed on a resource. HTTP also defines a set of status codes, such as 200 OK, 404 Not Found, and 500 Internal Server Error, that indicate the outcome of the request.
The REST API is an application programming interface that conforms to the design principles of the REST, or representational state transfer, architectural style. REST APIs provide a flexible, lightweight way to integrate applications and to connect components in microservices architectures. REST APIs rely on HTTP to transfer a representation of the state of the resource to the requester or endpoint. The representation can be in various formats, such as JSON, XML, HTML, or plain text.
NEW QUESTION # 42
How does Mist detect rogue APs?
- A. by using the AP's 2.4 GHz radio band
- B. by using the AP's 5 GHz radio band
- C. by using the AP's third dedicated radio
- D. by using Radio Resource Management (RRM)
Answer: C
NEW QUESTION # 43
When would be the earliest opportunity to configure an access point (AP)?
- A. after the AP is installed
- B. after you are on the same network as the AP
- C. after the AP is claimed to inventory
- D. after the AP is online
Answer: C
Explanation:
Reference:
This is the earliest opportunity to configure an access point (AP) in the Juniper Mist cloud. According to the Juniper Mist documentation1, the steps to configure an AP are as follows:
Claim the AP to inventory: This step involves entering the serial number or MAC address of the AP in the Juniper Mist cloud portal, which will add the AP to the inventory and assign it a subscription.
Assign the AP to a site: This step involves selecting a site from the inventory and dragging and dropping the AP to the site. This will apply the site-level settings and policies to the AP.
Configure the AP settings: This step involves editing the AP settings, such as name, location, labels, templates, and radio profiles. This can be done individually or in bulk for multiple APs.
NEW QUESTION # 44
The Mist help menu provides direct access to which two features? (Choose two.)
- A. hardware updates
- B. firmware updates
- C. feature updates
- D. company updates
Answer: B,C
NEW QUESTION # 45
Which location mode is required to track BLE badges?
- A. vBLE Engagement
- B. wayfinding
- C. BLE asset visibility
- D. Wi-Fi location
Answer: C
NEW QUESTION # 46
In which two Mist configuration levels would you create labels? (Choose two.)
- A. location
- B. switch
- C. organization
- D. site
Answer: C,D
NEW QUESTION # 47
How does Mist detect rogue APs?
- A. by using the AP's 2.4 GHz radio band
- B. by using the AP's third dedicated radio
- C. by using the AP's 5 GHz radio band
- D. by using Radio Resource Management (RRM)
Answer: C
NEW QUESTION # 48
Mist cloud supports single sign-on in which two scenarios? (Choose two.)
- A. account login used for the RESTful API
- B. admin login to the Mist portal
- C. account login used for NETCONF
- D. Wi-Fi guest login access
Answer: B,D
Explanation:
According to the web search results, Mist cloud supports single sign-on (SSO) in two scenarios: Wi-Fi guest login access and admin login to the Mist portal. SSO is a feature that allows users to log in to multiple applications or services with one set of credentials, without having to enter them repeatedly1. SSO can provide convenience, security, and efficiency for users and administrators1.
Wi-Fi guest login access is a scenario where users can access the Wi-Fi network as guests using their existing social media or email accounts, such as Facebook, Google, or LinkedIn2. Mist cloud supports SSO for Wi-Fi guest login access by integrating with various identity providers (IdPs), such as Azure AD, Okta, Ping Identity, or OneLogin2. Mist cloud can also use webhooks to send guest login data to third-party applications or services, such as Slack, Splunk, or ServiceNow2.
Admin login to the Mist portal is a scenario where administrators can access the Mist dashboard using their existing corporate accounts, such as Office 365, G Suite, or Active Directory3. Mist cloud supports SSO for admin login to the Mist portal by integrating with various IdPs, such as Azure AD, Okta, Ping Identity, or OneLogin3. Mist cloud can also use the REST API to automate and customize the admin login process3.
NEW QUESTION # 49
......
Juniper JN0-251 Test Engine PDF - All Free Dumps: https://www.certkingdompdf.com/JN0-251-latest-certkingdom-dumps.html