Nokia 4A0-AI1 Practice Test - Questions Answers, Page 2

Model-Driven Mediation (MDM) is a component that provides mediation between model-driven NSP applications and Nokia or third-party network devices. It uses adaptors to convert NSP application requests to device specific directives using standard protocols such as NETCONF, SNMP and CLI over SSH or Telnet.

This statement is false because MDM can communicate with devices that only support CLI (Command Line Interface) using a translation module that converts CLI commands to NETCONF or RESTCONF protocols. MDM acts as a mediator between the northbound system and the southbound devices by translating device configuration to a standard format that can be consumed by the northbound system.

The other statements are true:

B. It is the foundation for supporting multi-vendor device management. C. It provides the translation between the AMI and device model. D. It can interface with devices that support OpenConfig gRPC Network Management Interface.

Reference: Nokia NSP IP Network Automation Professional Guide, page 83-85.

REST and RESTCONF APIs provide a single entry point into the consolidated suite of NSP applications. Another source2 mentions that NSP REST gateway provides access to NSD and NRC

functionalities through REST API services. A third source3 explains that RESTCONF is an HTTP-based protocol that performs CRUD operations on data using YANG models.

The option that is NOT a benefit of ZTP (Zero Touch Provisioning) is:

B. Increases network throughput.

ZTP is a network device deployment method that automates the initial configuration process of network devices, eliminating the need for manual intervention. The benefits of ZTP include:

A. Lowers overall time for network rollout C. Optimizes costs D. Minimizes the amount of commands typed

ZTP is a method of setting up devices that automatically configures the device using a switch feature. Another source2 mentions that ZTP helps IT teams quickly deploy network devices in a large-scale environment, eliminating most of the manual labor involved with adding them to a network. A third source3 explains that ZTP uses Cisco Plug and Play (Cisco PnP) to verify devices and perform downloads over a secure, encrypted channel.

The HTTP methods that are supported by REST/RESTCONF are:

OPTIONS: Used to retrieve the communication options available for a resource.

GET: Used to retrieve a representation of a resource.

PATCH: Used to apply a partial update to a resource.

POST: Used to create a new resource or trigger a specific action.

The HTTP method TRACE is not supported by REST/RESTCONF.

Reference: Nokia NSP IP Network Automation Professional Guide, page 77.

The HTTP methods that are supported by REST/RESTCONF are:

GET: Used to retrieve a representation of a resource.

PUT: Used to replace a resource or create it if it does not exist.

DELETE: Used to delete a resource.

PATCH: Used to apply a partial update to a resource.

The HTTP method ADD is not a standard HTTP method and is not supported by REST/RESTCONF.

Reference: Nokia NSP IP Network Automation Professional Guide, page 77.

the NSP REST Gateway API provides the entry point for API clients to locate and authenticate REST client requests to gain access to the various NSP modules that have registered API services.

YANG is a data modeling language used to model configuration and state data for network devices. It defines a tree-like structure for data and is used to store, configure, and retrieve information from network devices. It is human readable and can be used to define actions and operations.

a Kafka topic is a channel where publishers (producers) publish data and where subscribers (consumers) receive data. A topic represents a stream of messages of a particular category.

In Kafka, a topic represents a stream of messages of a particular category or type. Producers publish messages to a specific topic, and consumers subscribe to and read messages from topics. Brokers are responsible for managing topics and ensuring that messages are distributed efficiently across the cluster.

Kafka is a distributed messaging system that is open-source and can be used to send real-time notifications. However, it has more than four components, such as brokers, partitions, replicas, consumer groups and zookeeper.