Question 90
At the Quayside energy utility, a company introduces contractor VLANs without documenting approved access to shared services. Which underlying issue most directly explains this situation?
Explanation
Correct Answer
The architectural weakness is that VLAN separation alone does not establish which inter-segment flows are permitted. It can be addressed through the controlled change to define a security policy matrix and staged segment access validation before deployment. This result addresses the stated challenge at the Quayside energy utility.
Incorrect Answers
The option states: Inconsistent VLAN and network addressing produces reachability and isolation faults during deployment. By contrast, the current situation is governed by: VLAN separation alone does not establish which inter-segment flows are permitted. Choosing this alternative would leave the question’s specific root-cause explanation unresolved.
The offered alternative states: Different operating system families do not guarantee equivalent command syntax or feature behavior. The reported facts point to a different controlling condition: VLAN separation alone does not establish which inter-segment flows are permitted. The alternative does not directly settle the required root-cause explanation.
Core undersizing can create campus-wide congestion and costly replatforming. In this question, the decisive issue is: VLAN separation alone does not establish which inter-segment flows are permitted. That is why the offered option is not the most direct root-cause explanation.