CompTIA Security+ SY0-701 3.1 Study Guide: Infrastructure and Cloud Concepts

This study guide provides a comprehensive overview of cloud infrastructures, network segmentation, and system resilience as defined in the CompTIA Security+ SY0-701 domain. It explores the shift from traditional on-premises hardware to software-defined environments and the security implications of these technologies. 1. Cloud Infrastructure Models and Responsibility Modern organizations utilize various cloud service models to run applications. A critical aspect of cloud security is the Shared Responsibility Matrix , which defines whether the customer or the cloud provider is responsible for specific security tasks. Cloud Service Models Infrastructure as a Service (IaaS): Provides basic computing resources. The customer has the most control and responsibility, including managing the operating system and applications. Platform as a Service (PaaS): Provides a platform for developers to build applications without managing the underlying hardware or OS. Software as a Service (SaaS): The pro