Which subjects are considered in troubleshooting high-level issues in Discovery?

The selection of connectivity and permissions as a key subject in troubleshooting high-level issues in Discovery is appropriate because these factors directly impact the ability of the Discovery tool to function effectively. Connectivity refers to the network paths and access points that allow Discovery to communicate with various devices and applications across an IT infrastructure. If there are issues with connectivity, such as firewalls blocking access, misconfigurations in network routes, or any interruptions in network availability, Discovery may fail to gather critical data from target devices.

Permissions are equally important because the Discovery tool usually operates under specific user credentials that must have the appropriate access rights to gather information from various resources. If the permissions are insufficient, Discovery might not be able to probe certain elements or might encounter restrictions that prevent it from collecting data effectively.

In summary, focusing on connectivity and permissions allows for a thorough assessment of the operational environment and helps identify barriers that might hinder Discovery's performance, thereby enabling a more efficient troubleshooting process. The other subjects listed, while relevant in broader operational contexts, do not address immediate technical barriers as directly as connectivity and permissions do.