Juniper Mist AI, Associate Exam JN0-251 JNCIA-MistAI Exam Practice Test

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.

Answer : A, B

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.

Answer : C, D

According to the web search results, the Mist help menu provides direct access to feature updates and firmware updates, among other options.Feature updates are weekly updates that show the new features and enhancements that are added to the Mist platform1.Firmware updates are software updates that show the latest firmware versions for different Mist devices, along with the release notes and the features they support2.You can access these options from the Support Tickets and Documentation menu in the Mist GUI12.You can also use the ? mark in the upper right of the UI to see the latest firmware and previous production releases2.

Answer : C

The protocol that the REST API uses isHTTP. 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.

Answer : A, C

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.

Answer : B

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.