authoritative
DNS server that hosts a primary or secondary zone for a particular DNS domain.
authoritative answer
Response from a DNS server that hosts a primary or secondary zone for the DNS domain being queried.
canonical name (CNAME) resource record
Creates an alias to an existing A or AAAA record.
conditional forwarder
DNS configuration option that refers queries to remote forwarders based on the domain name contained within the query.
country code
Names that map to individual countries such as .uk, .pl, and .it.
discretionary access control list (DACL)
Enables you to specify which users and groups may modify the DNS zones and records
DomainDNSZones
DNS replication scope that copies DNS data to all DCs in a domain that are configured as DNS servers.
file-backed zone
DNS zone that stores its data in a text file on the DNS server.
ForestDNSZones
DNS replication scope that copies DNS data to all DCs in a forest that are configured as a DNS server.
forwarder
DNS configuration option that refers queries that cannot be resolved by the local DNS server to another DNS server on the same network or on a remote network.
forward lookup zone
Zone that responds to client requests to map known host names to IP addresses.
forwarding-only server
DNS server that will not perform any recursion after forwarders fail. If it cannot resolve a query by using its configured forwarders, it will return a negative response to the query.
full zone transfer (AXFR)
Copying the entire contents of a DNS zone during a zone transfer.
host (A)
Maps an FQDN to an IPv4 address.
host (AAAA) resource record
Maps an FQDN to an IPv6 address
incremental zone transfer (IXFR)
Copying only the contents of a DNS zone that have changed since the last zone transfer to cut down on network traffic.
in-addr.arpa domain
DNS zone used for reverse lookup queries of IPv4 DNS records.
ip6.arpa domain
DNS zone used for reverse lookup queries of IPv6 DNS records.
mail exchanger (MX) resource record
DNS record that allows e-mail applications to locate e-mail servers.
PTR resource record
DNS resource record that maps a known IP address to a host name.
reverse lookup zone
Zone that responds to client requests to map known IP addresses to host names.
root hints
Using the top-level Internet DNS servers to resolve a query.
second-level domains
DNS domains that are registered to individuals or organzations such as microsoft, hp, dell, and so forth.
secure dynamic updates
Allows DNS records to be updated only by the client that first registered the record.
standard zone
DNS zone that stores its data in a text file on the DNS server.
stub zone
DNS zone that contains sufficient information to locate authoritative name servers for a DNS domain.
Time to Live (TTL)
Amount of time for which a DNS record is valid before it must be re-verified.
top-level domains
Top-most domains in the DNS namespace hierarchy such as .com, .org, or .biz.
zone transfer
Process of copying DNS zone data from a server hosting a primary zone to a server hosting a secondary zone.

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