Exam ISO-IEC-27001-Lead-Implementer Topic 4 Question 133 Discussion

Scenario 7: InfoSec is a multinational corporation headquartered in Boston, MA, which provides professional electronics, gaming, and entertainment services. After facing numerous information security incidents, InfoSec has decided to establish teams and implement measures to prevent potential incidents in the future Emma, Bob. and Anna were hired as the new members of InfoSec's information security team, which consists of a security architecture team, an incident response team (IRT) and a forensics team Emma's job is to create information security plans, policies, protocols, and training to prepare InfoSec to respond to incidents effectively Emma and Bob would be full-time employees of InfoSec, whereas Anna was contracted as an external consultant.
Bob, a network expert, will deploy a screened subnet network architecture This architecture will isolate the demilitarized zone (OMZ) to which hosted public services are attached and InfoSec's publicly accessible resources from their private network Thus, InfoSec will be able to block potential attackers from causing unwanted events inside the company's network. Bob is also responsible for ensuring that a thorough evaluation of the nature of an unexpected event is conducted, including the details on how the event happened and what or whom it might affect.
Anna will create records of the data, reviews, analysis, and reports in order to keep evidence for the purpose of disciplinary and legal action, and use them to prevent future incidents. To do the work accordingly, she should be aware of the company's information security incident management policy beforehand Among others, this policy specifies the type of records to be created, the place where they should be kept, and the format and content that specific record types should have.
According to scenario 7, a demilitarized zone (DMZ) is deployed within InfoSec's network. What type of control has InfoSec implemented in this case?