ARM template outputs in Azure - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ service_behavior

intermediate

What is the output value of this ARM template?

Given the following ARM template snippet, what will be the value of the output named storageAccountName after deployment?

{
  "outputs": {
    "storageAccountName": {
      "type": "string",
      "value": "myStorage123"
    }
  }
}

A "storageAccountName"

B "myStorage123"

C "string"

D "outputs"

💡 Hint

The output value is the value field inside the output definition.

The output named storageAccountName has a value of "myStorage123". This is what the deployment outputs.

🧠 Conceptual

intermediate

Which output type is valid in ARM templates?

ARM templates support several output types. Which of the following is NOT a valid output type?

A string

B securestring

C float

D int

💡 Hint

Think about the basic data types ARM templates support for outputs.

ARM templates support string, int, bool, object, and securestring as output types. float is not supported.

❓ Configuration

advanced

What is the output of this ARM template snippet with nested outputs?

Consider this ARM template outputs section:

{
  "outputs": {
    "nestedOutput": {
      "type": "object",
      "value": {
        "name": "appService",
        "id": "12345"
      }
    }
  }
}

What is the exact JSON output value for nestedOutput after deployment?

A {"name": "appService", "id": "12345"}

B "{\"name\": \"appService\", \"id\": \"12345\"}"

C "appService12345"

D {"nestedOutput": {"name": "appService", "id": "12345"}}

💡 Hint

Outputs of type object return JSON objects, not strings.

The output value is a JSON object with keys name and id. It is not a string or wrapped inside another object.

❓ security

advanced

Which output type should you use to avoid exposing sensitive data?

You want to output a secret value from your ARM template without exposing it in deployment logs or UI. Which output type should you use?

A securestring

B string

C object

D int

💡 Hint

Think about how ARM templates handle sensitive data in outputs.

The securestring output type masks the value in logs and UI, protecting secrets.

❓ Architecture

expert

What happens if an ARM template output references a non-existent resource property?

In an ARM template, an output references a property of a resource that does not exist or is misspelled. What will be the deployment output behavior?

A Deployment succeeds but output is an empty string.

B Output returns null without failing deployment.

C Deployment succeeds and output returns the property name as string.

D Deployment fails with a template validation error.

💡 Hint

Consider how ARM template validation works before deployment completes.

ARM template deployment fails if an output references a property that does not exist, as it is a template validation error.