DNS server stores different types of resource records used to resolve names
Contains the name, address, and type of record.
Record types are:
A – An end device address
NS – An authoritative name server
CNAME – The canonical name for an alias; used when multiple services have the single network address, but each service has its own entry in DNS
MX – Mail exchange record; maps a domain name to a list of mail exchange servers
Unable to resolve the name using its stored records, contacts other servers.
Server temporarily stores the numbered address that matches the name in cache memory.
Windows ipconfig /displaydns displays all cached DNS