www.google.dk has two IP records. They are on the same IP network.
google.dk is delegated to two nameservers, however two extra nameservers are listed in the zone. All nameservers are at
google.com. All of them are on the same IP network. Incoming mail for
google.dk is handled by four mailservers also at
google.com. All of them are on different IP networks.
google.dk has three IP records. All of them are on different IP networks.