NCP-MCA Exam Dumps : Nutanix Certified Professional - Multicloud Automation (NCP-MCA v6.5) Exam

The administrator should use a trigger based on an event when creating a playbook to automate the scaling of the VDI solution. An event trigger is a type of trigger that executes a playbook when a specific event occurs in the Nutanix environment or in a third-party system. An event trigger can be configured to listen to events from various sources, such as Prism alerts, Calm actions, or external webhooks. In this scenario, the administrator can use an event trigger to listen to the webhook from the third-party monitoring tool and execute a playbook that creates additional resources and adds them to the VDI solution.

A trigger based on a REST API is not the best option, because it requires the administrator to manually invoke the playbook using an API call. This is not as efficient or reliable as using an event trigger that automatically executes the playbook when the capacity threshold is reached.

A trigger based on an email is also not the best option, because it requires the administrator to configure an email server and a mailbox to receive the notification from the third-party tool. This adds complexity and overhead to the automation process and may not be as secure or timely as using an event trigger.

A trigger based on an alert is a valid option, but it depends on the availability and compatibility of the Prism alert system with the third-party tool. If the third-party tool can send alerts to Prism, then the administrator can use an alert trigger to execute the playbook. However, if the third-party tool does not integrate with Prism, then the administrator cannot use an alert trigger and has to use an event trigger instead.

References:

Nutanix Calm User Guide: Chapter 8: X-Play

Nutanix Calm DSL User Guide: Chapter 5: Playbooks

Nutanix Certified Professional - Multicloud Automation (NCP-MCA) Exam Blueprint Guide: Section 1: Describe and Differentiate Automation Concepts and Principles

To create and execute a scaling action using Calm, the administrator should create the action under the service profile section of the blueprint and the application profile section of the blueprint. The service profile section defines the properties and actions of each service in the blueprint, such as the VM configuration, the scripts to run, and the scaling parameters. The application profile section defines the properties and actions of the entire application, such as the number of instances, the dependencies, and the scaling triggers. The administrator can then execute the scaling action in the Overview tab or the Services tab of the application, depending on the scope of the scaling action. References:

Nutanix Certified Professional - Multicloud Automation, Page 18

Nutanix Calm User Guide

Nutanix Calm User Guide

Nutanix Calm User Guide

Nutanix Calm User Guide

Runbooks are a feature of Calm that allows for the creation of task-based automation against dynamic lists of Windows or Linux VMs. A runbook is a collection of tasks that can be executed on one or more VMs or services. A task is a unit of automation that can perform actions such as executing commands, running scripts, invoking APIs, or sending notifications. A runbook can be triggered manually, on a schedule, or based on an event. Runbooks can be used to automate common operations such as backup, restore, patching, scaling, or troubleshooting. References: Nutanix Certified Professional - Multicloud Automation (NCP-MCA) Exam Blueprint Guide, page 16; Nutanix Calm User Guide, section 3.4.