A client created their infrastructure using IBM Cloud Schematics and wants to horizontally scale their resources. How can this be achieved?

IBM Cloud Schematics is an Infrastructure as Code (IaC) tool that uses Terraform to create, update,

and manage cloud resources. To horizontally scale resources using IBM Cloud Schematics, a user

should add the necessary resources (such as additional virtual machines or instances) by updating

the Terraform configuration files and applying those changes through Schematics.

How Scaling is Achieved with IBM Cloud Schematics: Users can modify their existing infrastructure

definition to add new resources or adjust their configurations. These modifications can be made in

the Terraform files that are managed by Schematics. After the modifications, users apply the updated

configuration to scale resources horizontally (e.g., adding more instances to a resource pool).

Why IBM Cloud Schematics is the Correct Choice: Schematics manages infrastructure as code, which

is a more reliable, repeatable, and controlled way to manage changes and scale resources compared

to manual methods such as CLI.

Comparison with Other Options:

A (Add using CLI): Possible but not as efficient or manageable as using Schematics.

C (Destroy resources using Console): Irrelevant to scaling.

D (Destroy all and recreate): Not a practical or recommended approach for scaling.

Reference:

IBM Cloud Schematics Documentation

IBM Cloud Architect Exam Study Guide