CompTIA Exam Prep - ITF+, A+, Network+, Security+, CySA+

VM sprawl is the uncontrolled proliferation of virtual machines beyond what an organisation needs, tracks or maintains. It is a governance failure with real security consequences, and the exam treats it as both. Why it happens Provisioning became trivial. Creating a physical server meant procurement, delivery, racking and cabling — weeks of friction that acted as an unintentional control. Creating a VM takes minutes and a few clicks. The specific drivers: no approval process for new instances; test and development machines created for a purpose and never removed; cloning as the default way to build, so one template becomes dozens of variants; no ownership recorded, so nobody knows whether a machine is still needed; fear of deleting something that might matter; and in the cloud, no capacity ceiling to force a reckoning. The last point is worth dwelling on. On-premises virtualisation eventually runs out of host capacity, which forces a clean-up. Cloud simply bills more, so the constr...

Virtualization and cloud computing are no longer "advanced" topics reserved for data center specialists. CompTIA's Tech+ (FC0-U71) exam treats them as foundational IT literacy, because almost every modern business — from a five-person startup to a global enterprise — runs at least part of its workload on a virtual machine or a cloud service. Objective 2.6 specifically asks candidates to "compare and contrast virtualization and cloud technologies," and it falls inside Domain 2.0 (Infrastructure), which carries the single largest weight on the exam at 24%. This guide breaks down exactly what Tech+ wants you to know: what a hypervisor is, how a guest operating system relates to its host, the three major cloud service models (IaaS, PaaS, and SaaS), and the deployment models that decide where that cloud infrastructure actually lives. What Is Virtualization? Hypervisors and Guest Operating Systems Virtualization is the process of creating a software-based, or ...