CompTIA Cloud+ Prep Online

Thin provisioning supports overcommitment by presenting large logical volumes while consuming physical capacity only as data is actually written. This matches a scenario where applications have variable usage and are unlikely to peak at the same time, helping avoid allocating the entire physical capacity up front. Thick provisioning reserves the full allocated capacity immediately, which does not help when physical storage is insufficient to pre-allocate each application’s maximum. Compression and deduplication can reduce how much space data consumes, but they do not address the core requirement of allocating storage on demand across multiple applications with unpredictable peak usage.

A community cloud is designed for multiple organizations that share common requirements (such as the same regulatory and security needs) and want to share infrastructure and data access within a restricted membership. Hybrid focuses on combining two or more different cloud types (such as public and private) to move workloads and data between them, not specifically on a shared, members-only environment among peer organizations. A private cloud is dedicated to a single organization, which does not match a shared platform used by multiple hospitals. A public cloud is generally available to the public or a broad set of customers and does not inherently imply access limited only to the participating hospitals.

FedRAMP is the U.S. government program that standardizes the security assessment, authorization to operate, and continuous monitoring requirements for cloud service offerings used by federal agencies. FISMA is a broader federal law and security governance framework for protecting federal information and information systems; it is not, by itself, the standardized cloud authorization program. SOC 2 is an industry attestation report for service organizations and is not a U.S. government authorization program. DIACAP is a legacy Department of Defense certification and accreditation process and is not the current government-wide standardized cloud authorization framework.