* The question asks about the approach that the IT team is using to troubleshoot the global system outages. The IT team has identified multiple potential underlying causes throughout the enterprise and assigned each team member an area to troubleshoot.
* The answer is divide-and-conquer, which is a method of problem-solving that involves breaking down a complex problem into smaller and simpler subproblems, and solving them individually or in parallel1.
This way, the IT team can isolate and eliminate the possible causes of the outages more efficiently and effectively.
* Top-to-bottom, bottom-to-top, and determine if anything changed are not the correct answers, because they are not the approaches that the IT team is using in this scenario. Top-to-bottom is a method of problem-solving that involves starting from the highest level of abstraction and working down to the lowest level of detail2. Bottom-to-top is a method of problem-solving that involves starting from the lowest level of detail and working up to the highest level of abstraction3. Determine if anything changed is a method of problem-solving that involves identifying and analyzing the changes that occurred before the problem arose. References:
* Divide-and-conquer
* Top-to-bottom
* Bottom-to-top
* [Determine if anything changed]
* CompTIA Network+ N10-008 Study Guide