Research and report on one of the following security technologies used to secure industrial control systems: Application white listing, network segmentation, vulnerability scanning, network access control, security information and event management, data diode. Please choose any one from below and answer two questions,

1) Application white listing,

2) Network Segmentation,

3) Vulnerability Scanning,

4) Network Access Control,

5) Security Information

6) Event Management,

7) Data Diode.

Please cover in your post the following points:

1) Describe what the technology does.

2) Discuss whether you think it's a good fit for securing ICS and why.