From the exhibit, it is clear that Prism Central needs to communicate with Calm managed target Linux VMs via SSH and with Calm managed target Windows VMs via PowerShell or Shell scripts. The appropriate ports to open for these communications are:
TCP 22: This port is used for SSH, which is necessary for managing Linux VMs.
TCP 5985 and 5986: These ports are used for PowerShell remoting, which is essential for managing Windows VMs.
Reference:
Nutanix Calm documentation on Network Ports.
Best practices for Nutanix Network Configuration.

Scaling VM replica settings allow you to specify the minimum, maximum, and default number of VMs that can be created from a blueprint service. The minimum and default values must be equal to or greater than the number of VMs needed at any time and at time of deployment, which is 2 in this case. The maximum value must be equal to or less than the project quota divided by the VM resources, which is 100/12 = 8 for vCPUs and 300/24 = 12 for memory. The lowest of these two values is the limit for the maximum value, which is 8. Therefore, the only option that meets all the requirements is B. MIN: 2, MAX: 7, Default: 2.
Reference:
Nutanix Certified Professional - Multicloud Automation (NCP-MCA) Exam Blueprint Guide, page 10, Objective 3.1: Given a scenario, create a blueprint to deploy infrastructure and applications using Self-Service Nutanix Multicloud Automation Administration (NMCAA), Module 5: Self-Service, Lesson 5.2: Blueprint Design, slide 23: Scaling VM Replica Settings Nutanix Certified Professional Multicloud Automation (NCP-MCA) 6 Exam, page 10, Objective 3.1: Given a scenario, create a blueprint to deploy infrastructure and applications using Self-Service

To create an application blueprint for AWS and Azure in Nutanix Calm, the Blueprint Developer needs to complete the following actions:
Create AWS and Azure Accounts: These accounts must be created and configured within Nutanix Calm to allow integration with the respective cloud providers.
Add the provider Accounts to the project: Once the accounts are created, they need to be added to the specific project in which the blueprint will be developed. This ensures that the blueprint can use the resources and configurations associated with these accounts.
Reference:
Nutanix documentation on Creating Cloud Accounts.
Nutanix Best Practices for Project Configuration.

To launch application deployments on any remote Prism Central (PC) from the PC hosting Calm Global, the administrator must create a Nutanix account for each remote PC on the local PC (the one hosting Calm Global) and add these accounts to the relevant project. This setup allows Calm to manage and orchestrate resources across multiple Prism Central instances.
Reference:
Nutanix Calm documentation on Multi-Cluster Management.
Nutanix Best Practices for Global Deployments.