Disaster recovery strategies (backup, pilot light, warm standby) in AWS - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create an S3 bucket for backup storage.

AWS

aws s3api create-bucket --bucket [1] --region us-east-1

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

Abackup-bucket

Bbackup123

Cmybucket

Dmy-backup-bucket-123

Attempts:

3 left

💡 Hint

Common Mistakes

Using a bucket name that is too generic or already taken.

The bucket name must be globally unique. 'my-backup-bucket-123' is a valid unique name.

2fill in blank

medium

Complete the code to launch a pilot light EC2 instance in the us-west-2 region.

AWS

aws ec2 run-instances --image-id ami-0abcdef1234567890 --count 1 --instance-type [1] --region us-west-2

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

At3.nano

Bm5.large

Cc5.xlarge

Dt2.micro

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing an instance too small to run essential services.

For pilot light, a moderate instance like 'm5.large' is suitable to keep minimal services running.

3fill in blank

hard

Fix the error in the CloudFormation snippet to define a warm standby RDS instance.

AWS

"Resources": {"WarmStandbyDB": {"Type": "AWS::RDS::DBInstance", "Properties": {"DBInstanceClass": "[1]", "Engine": "mysql", "MultiAZ": true}}}

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

Adb.t2.micro

Bdb.m4.large

Cdb.r5.large

Ddb.t3.medium

Attempts:

3 left

💡 Hint

Common Mistakes

Using a small instance class that can't handle production load.

Warm standby requires a robust instance like 'db.r5.large' to handle failover smoothly.

4fill in blank

hard

Fill both blanks to configure a pilot light environment with minimal resources.

AWS

PilotLightConfig: {InstanceType: [1], StorageType: [2]

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

At3.small

Bgp2

Cio1

Dt2.micro

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing expensive storage or too large instances for pilot light.

Use 't3.small' for a small instance and 'gp2' for general purpose storage in pilot light.

5fill in blank

hard

Fill all three blanks to define a warm standby setup with auto-scaling and health checks.

AWS

WarmStandbySetup: {AutoScalingGroupName: [1], HealthCheckType: [2], MinSize: [3]

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

A"WarmStandbyASG"

B"EC2"

C1

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Setting MinSize to 0, which stops standby instances.

The Auto Scaling group name is 'WarmStandbyASG', health checks use 'EC2', and minimum size is 1 to keep standby running.