Which term is used to isolate and protect zones within data centers or cloud environments, securing them individually?

Which term is used to isolate and protect zones within data centers or cloud environments, securing them individually?

• A. Micro-Segmentation
• B. Availability Zone
• C. Jump Box
• D. Region-Based Segmentation

Answer: (A)

Isolating and protecting zones within data centers or cloud environments is achieved through micro-segmentation. This approach creates tiny, secure segments around individual workloads—whether a virtual machine, container, or service—and enforces access controls between them. By applying security policies at the workload or traffic level, often via software-defined networking or agent-based controls, micro-segmentation makes lateral movement much harder: even if an attacker breaches one host, they face strict, need-to-know paths to communicate with other parts of the environment. This enables a zero-trust mindset where every connection is authenticated and authorized according to the workload’s identity, application, or data sensitivity, and policies can be updated without broad network changes. Other concepts like an Availability Zone describe fault-domain boundaries, a Jump Box is just a secured admin access point, and Region-Based Segmentation isn’t a standard term for isolating zones within data centers; none provide the same granular, workload-level isolation that micro-segmentation delivers.