Which technology can be used for secure multi-tenancy in cloud environments?

Virtualization is a widely used technology for achieving secure multi-tenancy in cloud environments. It allows multiple operating systems to run concurrently on a single physical hardware platform by creating virtual machines (VMs) that are isolated from one another. This isolation ensures that the data and processes of one tenant are segregated and protected from those of other tenants, which is crucial in a cloud setting where resources are shared among many users.

In virtualization, each tenant can have a dedicated virtual machine with its own operating system, applications, and storage, giving them control over their environment while ensuring hardware resources are utilized efficiently. This separation is vital for maintaining the security and integrity of each tenant’s data and applications, effectively allowing cloud providers to allocate resources dynamically while preserving security.

Other technologies, while they may offer aspects related to multi-tenancy, do not provide the same level of secure isolation as virtualization. Serverless computing, for example, abstracts the infrastructure management and may run code for multiple users on shared resources, but it doesn't guarantee the same strict isolation as virtualization. Similarly, containerization offers a lightweight alternative that shares the host operating system among different containers, which can lead to security concerns if not properly managed. Edge computing primarily focuses on processing data at the edge of the network