When creating a blueprint, which Pre-create and Post-delete tasks are valid?

Refer to exhibits.

The variable VM_NAME is giving a warning that indicates that the variable is not found. When checking the Service tab, the variable is found to match the VM_NAME field entry as shown in the exhibit below:

What is causing this warning message?

A blueprint was developed for deploying a standard 3-tier hosting environment for a company's applications. The blueprint includes a load balancer, multiple web servers, a database server, and a small test application.
During testing of the blueprint, the application fails to connect to the database. The cause is found to be the database software is still installing when the application starts.
Which method most efficiently prevents the application from starting before the database?

An administrator has been tasked with creating a multicloud, three-tier application using Calm. The application needs to consist of:
A MongoDB backend database
A NodeJS Javascript runtime environment
An NGINX webserver
The administrator has access to an AWS account, as well as a locally hosted Nutanix cluster. The three parts of the application should be fully redundant, and be able to tolerate either a cloud provider outage, or a local Nutanix cluster outage.
What is the most appropriate solution the administrator should choose in order to meet the requirements?

Which two statements are true regarding the Nutanix public Github repository? (Choose two.)