Identify Components Of IT Infrastructure Practice Test

In an IT infrastructure audit of a nonprofit organization, the auditor reviews how internal users access payroll and donor management systems hosted in a private data centre. Management wants a centralized service to create, modify, and disable user accounts and group memberships to support access governance and timely deprovisioning. What is the primary role of the component that provides this capability in the IT infrastructure?

A government agency is conducting an IT security assessment of its public-facing permit application portal hosted in a demilitarized zone (DMZ). The agency wants to reduce the risk of internet-based attacks by filtering inbound and outbound traffic based on defined rules and logging blocked connections. Which IT infrastructure component is most directly responsible for this traffic filtering function?