1. A method of conducting domain name system (DNS) operations, comprising: accessing, by a processor of a DNS device, a set of policies for operation of a DNS, wherein the DNS uses domain name system with security extensions (DNSSEC), and the DNS device supports a zone of a DNS network; generating, by the processor, a set of answers to a plurality of questions associated with a set of domain names of the zone, wherein, based on the set of policies, a first question of the plurality of questions corresponds to a plurality of answers in the set of answers; generating a set of signed answers from the set of answers and a set of key data; storing the set of signed answers as records in a zone file; receiving via the DNS network, a question from a resolver; retrieving a signed answer from the stored set of signed answers based on the question received from the resolver and the set of policies, and transmitting via the DNS network, the signed answer to the resolver, wherein the records in the zone file comprise a plurality of records storing the plurality of answers corresponding to the first question, each of the plurality of records storing a respective one of the plurality of answers.