Explanation/Reference:
Explanation:
A skills inventory would help identify- the available resources, any gaps and the training requirements for developing resources. Proficiency testing is useful but only with regard to specific technical skills. Job descriptions would not be as useful since they may be out of date or not sufficiently detailed. An organization chart would not provide the details necessary to determine the resources required for this activity.

Explanation
Performing an analysis of the change is the first step in addressing the issue of an IT employee making a change to a firewall rule outside of the change control process because it helps to understand the reason, impact, and risk of the change and to decide whether to approve, reject, or reverse it. Requiring that the change be reversed is not the first step because it may cause more disruption or damage without proper analysis and testing. Reviewing the change management process is not the first step because it does not address the specific issue or incident at hand, but rather focuses on improving the process for future changes. Reporting the event to senior management is not the first step because it does not resolve the issue or incident, but rather escalates it without sufficient information or recommendation. References:
https://www.isaca.org/resources/isaca-journal/issues/2018/volume-3/change-management-in-the-age-of-digital-tr
https://www.isaca.org/resources/isaca-journal/issues/