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

How should an administrator enable Calm?

An administrator manages a Nutanix cluster with 630 VMs, all of which are in production.
The Accounting department wants to be notified when any of their production VMs exceed 90% CPU usage or 90% memory usage. Their VMs are categorized as LOB:Accounting.
How should the administrator satisfy this request from the Accounting department?

A company has a business-critical VM. The VM Utilization of CPU and memory differs from time to time, but can never be allowed to run out of resources. The administrator also wants to make sure that the VM is not over provisioned when not needed.
The administrator determines these requirements that have been validated and automated in a test environment should also apply for the production environment:
VCPU needs to be added when CPU Utilization been over 80% for 15 minutes.
Memory needs to be increased by 4 GB when utilization reaches 80%.
Return of over-allocated resources must not affect other business applications.
What can the administrator do with the least amount of effort to make sure the VM is always performant and returns resources when not required?

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?