Variables and outputs in GCP - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a variable in GCP infrastructure as code?

A variable is a placeholder used to store values that can change, like names or sizes, so you can reuse and customize your infrastructure easily.

beginner

Why use outputs in GCP infrastructure templates?

Outputs show important information after deployment, like IP addresses or resource names, so you can use them in other steps or share with your team.

intermediate

How do variables improve your GCP deployment templates?

Variables let you change settings without rewriting code, making your templates flexible and easier to manage, like changing a server size without editing many places.

intermediate

What is the difference between a variable and an output in GCP templates?

Variables are inputs you set before deployment to customize resources. Outputs are results you get after deployment to see or use resource details.

beginner

Give an example of when you would use an output in a GCP deployment.

You might output the external IP of a virtual machine so you can connect to it or share it with others after deployment.

What is the main purpose of a variable in GCP deployment templates?

A To display information after deployment

B To store values that can be changed to customize deployments

C To delete resources automatically

D To monitor resource usage

Variables hold values you can change to customize your deployment without rewriting the template.

What does an output in a GCP template provide?

A Input values for deployment

B Security settings

C Error messages during deployment

D Information about deployed resources

Outputs give you details about resources after deployment, like IP addresses or names.

Which of the following is NOT a good use of variables in GCP templates?

A Hardcoding IP addresses

B Defining the project ID

C Setting the machine type for a VM

D Choosing the region for resources

Hardcoding values like IP addresses defeats the purpose of variables, which are meant to be flexible.

When should you use outputs in your GCP deployment?

A To delete resources

B Before deployment to set values

C After deployment to get resource details

D To write deployment scripts

Outputs are used after deployment to retrieve useful information about the created resources.

How do variables and outputs work together in GCP templates?

A Variables set inputs; outputs show results

B Variables delete resources; outputs create them

C Variables monitor usage; outputs set permissions

D Variables and outputs are the same

Variables provide input values before deployment; outputs provide information after deployment.

Explain what variables and outputs are in GCP infrastructure templates and why they are useful.

Think about inputs before deployment and information after deployment.

Describe a simple example where you use a variable and an output in a GCP deployment template.

Imagine setting a server size and then getting its IP address.