UGC NET Questions (Paper – 1)

The Domain Name System is a distributed database that maps domain names to IP addresses. When users type a domain name, DNS servers resolve it to the corresponding numerical address so that communication can occur. This makes the internet more user friendly by hiding complex numbers behind simple names. Thus, the service described is the Domain Name System.

Option A:
Option A is correct because Domain Name System is the officially recognised expansion of DNS and matches the function of name resolution.

Option B:
Option B, Dynamic Network Service, is not the standard term and does not appear in networking standards as the meaning of DNS.

Option C:
Option C, Digital Number Server, is an invented phrase and does not accurately describe the established internet naming infrastructure.

Option D:
Option D, Domain Navigation Service, may sound related but is not the accepted name for the protocol and system performing this task.