The administrator should use a conditional playbook and create a playbook using alert to accomplish this task.A conditional playbook is a type of playbook that allows the administrator to define different actions based on certain conditions or criteria1.A playbook using alert is a type of playbook that is triggered by an alert policy that monitors the VM status2. By using these two features, the administrator can create a playbook that checks if the rebooted VM is the mission-critical VM and sends a notification to the on-call administrator, or else sends an email to the Operations team.

Nutanix Multicloud Automation Administration (NMCAA) course, Module 3: Nutanix X-Play, Lesson 2: Nutanix X-Play Playbooks, Topic: Conditional Playbooks

Nutanix Multicloud Automation Administration (NMCAA) course, Module 4: Nutanix Calm Governance, Lesson 2: Nutanix Calm Alerts, Topic: Alert Policies and Playbooks

Nutanix Certified Professional - Multicloud Automation (NCP-MCA) v6.5 Exam Blueprint Guide, Section 1: Describe and Differentiate Automation Concepts and Principles, Objective 1.3: Define the components of X-Play

A category is a key-value pair that can be assigned to an entity in Prism Central to simplify daily operations and management. Categories can be used to filter, search, and group entities based on common attributes. Categories can also be used to define policies and permissions for different entities. A category can be assigned to a cluster, a VM, an image, a network, a blueprint, an application, or a project. A category cannot be assigned to a hypervisor, a protection domain, or a storage container, as these are not entities in Prism Central.Reference:Nutanix Certified Professional - Multicloud Automation (NCP-MCA) Exam Blueprint Guide, page 12; Nutanix Prism Central Guide, section 4.1.

A Branch Condition is a type of action in X-Play that allows you to create conditional logic based on the output of a previous action or a custom expression. A Branch Condition can have multiple branches, each with a different condition and a different set of actions to execute if the condition is met. The minimum number of actions required in a Branch Condition is two: one for the condition itself, and one for the action to perform if the condition is true. If the condition is false, the Branch Condition will skip to the next action in the Playbook. You can add more branches to a Branch Condition, but you cannot have less than two.Reference:Nutanix Calm: Playbooks - Read the DocsandNutanix Calm: Branch Condition - Read the Docs.

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.Reference:

Nutanix Certified Professional - Multicloud Automation, Page 18

Nutanix Calm User Guide

Nutanix Calm User Guide

Nutanix Calm User Guide

Nutanix Calm User Guide

In order to enable the developer to complete the requested task, AWS and Azure Providers need to be created (Option A). This is because, in the context of Nutanix Calm, providers are integrations with public and private cloud infrastructures. The developer is trying to deploy an application on AWS and Azure clouds but currently only has Nutanix as a configured provider. After creating the providers, they need to be added to the project (Option B) so that applications can be deployed on them. Option C is incorrect because environments are not required for multicloud deployments. Option D is also incorrect because Calm version 3.2.x is not relevant to the question.