Windows DNS Server 2016 and 1709+ Zone Level Query Resolution Policy

Summary

A Policy determines the resolution of queries based on criteria that you specify in the Policy. You can create Policies for query resolution at either the Server Level or the Zone Level. Zone Level Policies apply to the Zone in which you create them. Zone Level Policies apply only when that Zone is found during the query lookup. You cannot create a Zone Level Policy without a Zone. If you remove a Zone, that removal deletes the associated Zone Level Policies. In a Zone Level Policy, you can specify a value of DENY or IGNORE for a set of queries for records in a Zone. Alternatively, if the action is Allow, Zone Level Policies can decide which Zone Scopes to use to answer queries and in what ratio. One use of such Zone Level Policies is application load balancing by means of DNS.