DHCP is a protocol known as Dynamic Host Configuration Protocol. Its main purpose is to assign different IP addresses to devices on a network. Network administrator has to assign IP addresses when a user connects to internet through a machine. By using this protocol network administrator's work become easier because he does not have to assign IP addresses manually as using DHCP this process of assigning IP addresses becomes automated.
DNS is also a internet protocol and is known as Domain Name Server or Domain Name Service. Its purpose is to translate domain names into IP addresses. Whenever we use a domain name, then a service is used for translating domain names into IP addresses and is known as DNS. For example, the domain name www.bigcity.com might translate to 192.103.202.2. So what DNS did in above example as it translates the name "Bigcity" into corresponding IP address.
If one DNS server does not know how to translate the particular domain name it asks another DNS server and this process continued until the correct IP address is returned. As in above example, if one domain server does not know how to translate www.bigcity.com then it will move to another DNS until the corresponding IP address 192.103.202.2 is returned.
DNS is also a internet protocol and is known as Domain Name Server or Domain Name Service. Its purpose is to translate domain names into IP addresses. Whenever we use a domain name, then a service is used for translating domain names into IP addresses and is known as DNS. For example, the domain name www.bigcity.com might translate to 192.103.202.2. So what DNS did in above example as it translates the name "Bigcity" into corresponding IP address.
If one DNS server does not know how to translate the particular domain name it asks another DNS server and this process continued until the correct IP address is returned. As in above example, if one domain server does not know how to translate www.bigcity.com then it will move to another DNS until the corresponding IP address 192.103.202.2 is returned.