Auto-scaling configuration in DynamoDB - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to specify the minimum capacity for auto-scaling.

DynamoDB

{
  "AutoScalingSettingsUpdate": {
    "MinimumUnits": [1]
  }
}

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

A"min"

B5

C-1

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using zero or negative numbers for MinimumUnits.

Using strings instead of numbers.

The MinimumUnits must be a positive integer specifying the minimum capacity units for auto-scaling.

2fill in blank

medium

Complete the code to set the target utilization percentage for auto-scaling.

DynamoDB

{
  "TargetTrackingScalingPolicyConfiguration": {
    "TargetValue": [1]
  }
}

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

A"high"

B150

C70

D-10

Attempts:

3 left

💡 Hint

Common Mistakes

Using values greater than 100 or negative values.

Using strings instead of numbers.

The TargetValue is a percentage (usually between 0 and 100) that defines the desired utilization for auto-scaling.

3fill in blank

hard

Fix the error in the code to correctly specify the scale-in cooldown period.

DynamoDB

{
  "ScaleInCooldown": [1]
}

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

A300

Bnull

C"300"

D-300

Attempts:

3 left

💡 Hint

Common Mistakes

Using string values instead of integers.

Using negative numbers or null.

The ScaleInCooldown must be a positive integer representing seconds. It cannot be a string or negative.

4fill in blank

hard

Fill both blanks to set the maximum and minimum capacity units for auto-scaling.

DynamoDB

{
  "AutoScalingSettingsUpdate": {
    "MaximumUnits": [1],
    "MinimumUnits": [2]
  }
}

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

A100

B10

C5

D200

Attempts:

3 left

💡 Hint

Common Mistakes

Setting MinimumUnits higher than MaximumUnits.

Using zero or negative numbers.

The MaximumUnits should be greater than the MinimumUnits. Here, 100 is max and 5 is min.

5fill in blank

hard

Fill all three blanks to configure the target tracking policy with cooldown periods and target value.

DynamoDB

{
  "TargetTrackingScalingPolicyConfiguration": {
    "TargetValue": [1],
    "ScaleInCooldown": [2],
    "ScaleOutCooldown": [3]
  }
}

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

A75

B60

C120

D30

Attempts:

3 left

💡 Hint

Common Mistakes

Using cooldown values as strings or negative numbers.

Setting TargetValue outside 0-100 range.

The TargetValue is 75%, ScaleInCooldown is 60 seconds, and ScaleOutCooldown is 120 seconds.