Domain 3.1

Cloud

Internet-hosted computing.

Responsibility matrix

Who does what.

Hybrid cloud

Using your own servers and cloud servers together.

Third-party vendor

Outside company selling items

Infrastructure as Code (IaC)

Managing infrastructure using code.

Serverless

You deploy code; the cloud runs it.

Microservices

Small services working together.

On-premises

Systems run at your location.

Centralized architecture

Systems managed from one main location.

Decentralized architecture

Systems and control spread across multiple locations

Containerization

App isolation using a shared OS

Virtualization

Multiple virtual systems running on one host.

IoT

Connected devices with minimal protection.

ICS/SCADA

Systems controlling industrial processes.

RTOS

Operating system designed for real-time tasks.

Embedded systems

Computers built into devices.

Physical isolation

Separating systems using physical controls.

Air-gapped

Completely isolated from other networks.

Logical segmentation

Separating networks using software.

SDN

Software-based network management.

High availability

System design that minimizes downtime.

Availability

Ensuring systems remain accessible.

Resilience

Ability to recover from disruptions.

Cost

Financial impact of infrastructure choices.

Responsiveness

Speed of system reaction.

Scalability

Ability to handle growth.

Ease of deployment

Simplicity and speed of setup.

Risk transference

Shifting risk to a third party.

Ease of recovery

Speed of restoring systems.

Patch availability

Ability to apply updates.

Inability to patch

Systems that cannot be updated.

Power

Electrical requirements and redundancy.

Compute

Processing resources available.