NE-03: Post-Merger Subnet Conflict Resolution

SCENARIO: Meridian Corp has completed its acquisition of Beacon Systems. Both companies operated their own 10.10.x.x networks independently. Now that the merger is complete and the networks are being interconnected, you've been called in to audit the combined infrastructure. Initial reports indicate overlapping subnets, mismatched masks, DHCP scopes bleeding across boundaries, and several hosts that have lost connectivity. Your job: walk through each piece of evidence, identify the addressing conflict, and document the corrected scheme.