OpenStack OpenStack Orchestration (Heat) 2

Question 1

Which OpenStack CLI command is used to create a new Heat stack from a template file?

Accepted Answer

openstack stack create

Answer

heat stack-create

Answer

openstack heat create

Answer

openstack template deploy

Question 2

What is the purpose of the 'get_attr' intrinsic function in Heat?

Accepted Answer

To retrieve an attribute value from a resource defined in the template

Answer

To get a parameter value from the parameters section

Answer

To fetch an environment variable from the OS

Answer

To retrieve a resource's UUID only

Question 3

What is a Heat environment file used for?

Accepted Answer

To override template parameters and resource registry mappings without modifying the template

Answer

To store Heat API credentials

Answer

To define new resource types

Answer

To configure the Heat engine service

Question 4

Which Heat resource type is used to create an auto-scaling group?

Accepted Answer

OS::Heat::AutoScalingGroup

Answer

OS::Nova::AutoScale

Answer

OS::Heat::ScalingPolicy

Answer

OS::Compute::ScalingGroup

Question 5

In a Heat template, what does 'depends_on' accomplish?

Accepted Answer

Explicitly defines the creation order between resources that Heat cannot automatically determine

Answer

Lists the Python packages a resource depends on

Answer

Specifies which OpenStack services must be running

Answer

Defines resource quotas for the stack

Question 6

What command checks the current status and events of a deployed Heat stack?

Accepted Answer

openstack stack show

Answer

openstack stack list

Answer

openstack stack status

Answer

heat stack-info

Question 7

Which OpenStack Heat component is responsible for executing template resource operations?

Accepted Answer

heat-engine

Answer

heat-api

Answer

heat-conductor

Answer

heat-scheduler