Alarm actions (SNS, Auto Scaling) in AWS - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to specify the SNS topic ARN for the alarm action.

AWS

AlarmActions: ["[1]"]

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

A"arn:aws:lambda:us-east-1:123456789012:function:MyFunction"

B"arn:aws:sqs:us-east-1:123456789012:MyQueue"

C"arn:aws:ec2:us-east-1:123456789012:instance/i-1234567890abcdef0"

D"arn:aws:sns:us-east-1:123456789012:MyTopic"

Attempts:

3 left

💡 Hint

Common Mistakes

Using an ARN for SQS, Lambda, or EC2 instead of SNS topic ARN.

The alarm action requires the ARN of an SNS topic to send notifications.

2fill in blank

medium

Complete the code to specify the Auto Scaling group name for the alarm action.

AWS

AutoScalingGroupName: "[1]"

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

AMyEC2Instance

BMyLambdaFunction

CMyAutoScalingGroup

DMySNSTopic

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing instance names or SNS topics with Auto Scaling group names.

The Auto Scaling alarm action requires the name of the Auto Scaling group to scale.

3fill in blank

hard

Fix the error in the alarm action configuration to correctly trigger scaling.

AWS

ScalingPolicyARN: "[1]"

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

A"arn:aws:autoscaling:us-east-1:123456789012:scalingPolicy:policy-id:autoScalingGroupName/MyAutoScalingGroup:policyName/MyPolicy"

B"arn:aws:sns:us-east-1:123456789012:MyTopic"

C"arn:aws:lambda:us-east-1:123456789012:function:MyFunction"

D"arn:aws:ec2:us-east-1:123456789012:instance/i-1234567890abcdef0"

Attempts:

3 left

💡 Hint

Common Mistakes

Using SNS topic ARN or Lambda ARN instead of Auto Scaling policy ARN.

The ScalingPolicyARN must point to an Auto Scaling policy ARN to trigger scaling actions.

4fill in blank

hard

Fill both blanks to configure an alarm that sends notification and triggers scaling.

AWS

AlarmActions: ["[1]", "[2]"]

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

A"arn:aws:sns:us-east-1:123456789012:NotifyTopic"

B"arn:aws:autoscaling:us-east-1:123456789012:scalingPolicy:policy-id:autoScalingGroupName/MyGroup:policyName/ScaleOut"

C"arn:aws:lambda:us-east-1:123456789012:function:MyFunction"

D"arn:aws:sqs:us-east-1:123456789012:MyQueue"

Attempts:

3 left

💡 Hint

Common Mistakes

Using Lambda or SQS ARNs instead of SNS or Auto Scaling policy ARNs.

The alarm can have multiple actions: one SNS notification and one Auto Scaling policy.

5fill in blank

hard

Fill all three blanks to define an alarm with threshold, SNS notification, and scaling policy.

AWS

Threshold: [1], AlarmActions: ["[2]", "[3]"]

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

A70

Barn:aws:sns:us-east-1:123456789012:AlertTopic

Carn:aws:autoscaling:us-east-1:123456789012:scalingPolicy:policy-id:autoScalingGroupName/Group1:policyName/ScaleIn

D80

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong threshold values or incorrect ARNs for alarm actions.

The threshold sets the alarm limit, and the actions include SNS notification and scaling policy ARNs.