Explanation
According to the VMware NSX Documentation, these are three of the capabilities of Network Topology, which is a graphical representation of your network infrastructure in NSX:
Display how the different NSX components are interconnected: You can use Network Topology to view how your segments, gateways, routers, firewalls, load balancers, VPNs, and other NSX components are connected and configured in your network.
Display the uplink configured on the Tier-0 Gateways: You can use Network Topology to view the uplink interface and segment that connect your tier-0 gateways to your physical network. You can also view the VLAN ID and IP address of the uplink interface.
Display the VMs connected to Segments: You can use Network Topology to view the VMs that are attached to your segments. You can also view the IP address and MAC address of each VM.
https://docs.vmware.com/en/VMware-NSX/4.0/administration/GUID-A75B2553-7595-40B9-A902-854941BB0

Explanation
According to the VMware NSX Documentation, Switch Visualization is a feature in the NSX UI that shows the mapping between the virtual NIC and the host's physical adapter for virtual machines running on an ESXi transport node. You can use Switch Visualization to view details such as port ID, MAC address, VLAN ID, IP address, MTU, port state, port speed, port type, and port group for each virtual NIC and physical adapter.

The answer is D. An alarm can be suppressed for a specific duration in hours.
According to the VMware NSX documentation, an alarm can be in one of the following states: Open, Acknowledged, Suppressed, or Resolved12 An alarm in a Suppressed state means that the status reporting for this alarm has been disabled by the user for a user-specified duration12 When a user moves an alarm into a Suppressed state, they are prompted to specify the duration in hours. After the specified duration passes, the alarm state reverts to Open. However, if the system determines the condition has been corrected, the alarm state changes to Resolved13 To learn more about how to manage alarm states in NSX, you can refer to the following resources:
VMware NSX Documentation: Managing Alarm States 1
VMware NSX Documentation: View Alarm Information 2
VMware NSX Intelligence Documentation: Manage NSX Intelligence Alarm States 3

NSX Global Manager is a feature of NSX that allows managing multiple NSX domains across different sites or clouds from a single pane of glass. NSX Global Manager supports Federation, which is a capability that enables synchronizing configuration and policy across multiple NSX domains. Federation has many benefits such as simplifying operations, improving resiliency, and enabling disaster recovery.
The only supported mode in NSX Global Manager when using Federation is Policy mode. Policy mode means that NSX Global Manager acts as a policy manager that defines and distributes global policies to local NSX managers in different domains. Policy mode also allows local NSX managers to have their own local policies that can override or merge with global policies.
https://docs.vmware.com/en/VMware-NSX/4.0/administration/GUID-29998FC5-C1AB-40BC-B669-6E8E9937F

https://docs.vmware.com/en/VMware-NSX/4.1/administration/GUID-26C44DE8-1854-4B06-B6DA-A2FD426CDF44.html