Q: Most public Domain Name Servers (DNS) are available globally through which technology?
or
Q: Which technology makes the majority of public Domain Name Servers (DNS) accessible worldwide?
- Anycast
- Echo request
- Time To Live (TTL) field
- Host file
Explanation: Through the technology that the Internet provides, the vast majority of public Domain Name Servers (DNS) are accessible all over the world. The Domain Name System (DNS) is an integral component of the infrastructure that underpins the internet, and public DNS servers are accessible all over the world thanks to the linked nature of the Internet. These servers may be accessed by users from any part of the globe, and they can be queried to resolve domain names to IP addresses and vice versa.
