Domain 4: Design Cost-Optimized Architectures

Question 1

Scenario:

A cost-effective solution for over-provisioning of
resources.

Answer 1

Solution:

Configure a target tracking scaling i n ASG.

Question 2

Scenario:

The application data is stored in a tape backup
solution. The backup data must be preserved for up to
10 years.

Answer 2

Solution:

Use AWS Storage Gateway to backup the data
directly to Amazon S3 Glacier Deep Archive.

Question 3

Scenario:

Accelerate the transfer of historical records from
on-premises to AWS over the Internet i n a
cost-effective manner.

Answer 3

Solution:

Use AWS DataSync and select Amazon S3 Glacier
Deep Archive as the destination.

Question 4

Scenario:

Globally deliver the static contents and media files to
customers around the world with low latency.

Answer 4

Solution:

Store the files i n Amazon S3 and create a
CloudFront distribution. Select the S3 bucket as the
origin.

Question 5

Scenario:

An application must be hosted to two EC2 instances
and should continuously run for three years. The CPU
utilization of the EC2 instances is expected to be
stable and predictable.

Answer 5

Solution:

Deploy the application to a Reserved instance.

Question 6

Scenario:

Implement a cost-effective solution for S3 objects that
are accessed less frequently.

Answer 6

Solution:

Create an Amazon S3 l ifecycle policy to move the
objects to Amazon S3 Standard-IA.

Question 7

Scenario:

Minimize the data transfer costs between two EC2
instances.

Answer 7

Solution:

Deploy the EC2 instances in the same Region.

Question 8

Scenario:

Import the SSL/TLS certificate of the application.

Answer 8

Solution:

Import the certificate into AWS Certificate Manager
or upload it to AWS IAM.