Free Juniper JN0-251 Exam Actual Questions

The questions for JN0-251 were last updated On Nov 5, 2024

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Question No. 1

Which Marvis Action category will detect a bad cable based on information and behavior of a single AP?

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Correct Answer: D

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.

Question No. 2

Which statement is correct about Mist SLEs?

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Correct Answer: B

The correct statement about Mist SLEs is thata Mist SLE is comprised of multiple classifiers. A Mist SLE, or Service Level Expectation, is a metric that tracks the percentage of time that a specific network condition is met within a given time range. A Mist classifier is a sub-metric that identifies the root cause of the network condition or issue. For example, the Throughput SLE measures the percentage of time that the wireless clients have an estimated throughput above the threshold configured by the network administrator. The Throughput SLE has four classifiers: Coverage, Network Issues, Device Capacity, and Capacity.Each classifier indicates a possible reason for low throughput, such as poor signal strength, interference, device limitations, or high bandwidth utilization12.

Question No. 3

Mist Insights will provide detailed information about which two categories? (Choose two.)

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Correct Answer: A, B

Mist Insights is a feature that provides detailed information about the network performance and user experience of your Mist-managed sites, access points (APs), and clients1.You can use Mist Insights to monitor, troubleshoot, and optimize your network by accessing various types of data and analytics collected by the Mist cloud1.

Mist Insights allows you to view insights for different contexts, such as the entire site, a specific AP, or a specific client2.You can select the context from the dropdown menu on the Insights dashboard in the Mist portal2.Depending on the context, you can see different sections of information and insights, such as site events, client events, AP events, applications, network servers, pre-connection and post-connection metrics, current site properties, current WLANs, access points, clients, and wired switches2.

Therefore, AP and client are two categories that Mist Insights will provide detailed information about. You can learn more about Mist Insights from theJuniper Networks documentationor theMist documentation.


Question No. 4

What are three alert levels used in the Mist UI? (Choose three.)

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Correct Answer: A, B, E

Question No. 5

Which characteristic describes Mist's cloud software architecture?

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Correct Answer: A

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.

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