Parameters for customization in AWS - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a parameter in AWS CloudFormation template.

AWS

"Parameters": {
  "InstanceType": {
    "Type": "[1]"
  }
}

Drag options to blanks, or click blank then click option'

AString

BNumber

CList

DBoolean

Attempts:

3 left

💡 Hint

Common Mistakes

Using Number type for instance type which is text.

Using List type when only a single value is needed.

The Type of a parameter defines the kind of value it accepts. String is the most common type for instance types.

2fill in blank

medium

Complete the code to set a default value for a parameter in AWS CloudFormation.

AWS

"Parameters": {
  "InstanceType": {
    "Type": "String",
    "Default": "[1]"
  }
}

Drag options to blanks, or click blank then click option'

Ac5.xlarge

Bt2.micro

Cm5.large

Dt2.large

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing an instance type that is too large or uncommon as default.

Leaving the default value empty.

The Default value sets the parameter's value if no other value is provided. t2.micro is a common default instance type.

3fill in blank

hard

Fix the error in the parameter definition to allow only specific instance types.

AWS

"Parameters": {
  "InstanceType": {
    "Type": "String",
    "AllowedValues": [1]
  }
}

Drag options to blanks, or click blank then click option'

A["t2.micro", "t2.small", "t2.medium"]

B"t2.micro, t2.small, t2.medium"

C{"t2.micro", "t2.small", "t2.medium"}

Dt2.micro, t2.small, t2.medium

Attempts:

3 left

💡 Hint

Common Mistakes

Using a string instead of a list for AllowedValues.

Using curly braces instead of square brackets.

The AllowedValues property must be a JSON array of strings listing valid values.

4fill in blank

hard

Fill both blanks to define a parameter with a description and a constraint on allowed values.

AWS

"Parameters": {
  "EnvironmentType": {
    "Type": "String",
    "Description": "[1]",
    "AllowedValues": [2]
  }
}

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AType of environment (dev, test, prod)

BList of environments

C["dev", "test", "prod"]

D["development", "testing", "production"]

Attempts:

3 left

💡 Hint

Common Mistakes

Using a vague or missing description.

Using incorrect format for AllowedValues.

The Description explains the parameter's purpose. AllowedValues restricts the input to listed options.

5fill in blank

hard

Fill all three blanks to define a parameter with a default, description, and allowed values.

AWS

"Parameters": {
  "KeyName": {
    "Type": "String",
    "Description": "[1]",
    "Default": "[2]",
    "AllowedValues": [3]
  }
}

Drag options to blanks, or click blank then click option'

AName of an existing EC2 KeyPair to enable SSH access

Bmy-key-pair

C["my-key-pair", "default-key", "admin-key"]

DList of key pairs

Attempts:

3 left

💡 Hint

Common Mistakes

Default value not included in AllowedValues.

Description missing or unclear.

The Description explains the parameter. Default sets a fallback value. AllowedValues restricts to valid key pair names.