Question 11

Software-defined networking can achieve microsegmentation.

Microsegmentation is primarily enabled by software-defined networking (SDN), which allows for granular control over network traffic and segmentation based on policies rather than traditional hardware constraints.

A) Next-generation firewalls

Next-generation firewalls provide advanced security features such as application awareness and intrusion prevention but do not inherently offer the dynamic and flexible segmentation capabilities that microsegmentation requires. While they can support segmentation, they typically operate at a coarser level compared to SDN.

B) Software-defined networking

Software-defined networking is designed to provide programmable network configurations and can create fine-grained microsegments within the network. By abstracting the network control from the hardware, SDN allows for dynamic policy application and isolation of workloads, which is essential for effective microsegmentation.

C) Embedded systems

Embedded systems are specialized computing systems that are dedicated to specific tasks and do not play a role in network segmentation. They are not designed for managing or segmenting network traffic, making them irrelevant in the context of achieving microsegmentation.

D) Air-gapped

Air-gapped systems are isolated from other networks for security purposes, but they do not facilitate microsegmentation within a network. This technology focuses on preventing external access rather than dynamically segmenting network traffic, thus making it unsuitable for the purpose of microsegmentation.

Conclusion

In summary, software-defined networking is the only option that directly supports microsegmentation through its ability to dynamically manage network segmentation policies. Options A, C, and D either lack the necessary capabilities or focus on different aspects of network security, failing to fulfill the requirements of microsegmentation. Thus, B is the definitive answer.