In Windows operating systems steps - Go to run type cmd press enter
C:\Documents and Settings\Administrator>ipconfig/all
after execute this command you will get all information about dns
It means, you do not have secondary DNS server.
Secondary DNS gets its records from the Primary DNS Server. The secondary DNS is essentially there in case the primary DNS doesn't respond.
A second DNS server helps in synchronization of DNS data from primary to secondary.
False. The DNS records cannot be added directly to the secondary DNS zone. The secondary DNS zone can receive the updated records only from the primary DNS zone of the DNS server.
modem
I believe 3 types of dns 1)Primary and 2)secondary and stub zones .
Often, DNS servers that are authoritative, or primary, for specific zones also function as slave, or secondary, DNS servers for other nearby zones. This permits hosts in one zone to gain access to DNS data from those other zones.
The reason why there are primary and secondary DNS addresses is for redundancy. If the first (primary) DNS server cannot be accessed for host resolution the secondary DNS server address is used as a fallback. Usually your ISP or preferred DNS host would provide you with both.
On a computer running a Windows operating system, you can find your DNS Server Address by clicking Start> Settings> Network connections. Then double click on Local Area Connection. Now click the properties button and select Internet protocol. Click on properties and find Preferred DNS Server.
Bring up a command prompt window and type 'ipconfig /all' (without the quotes)