Question
Download Solution PDFWhat is the function of the DNS (Domain Name System) on the internet?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Convert domain names to IP addresses.
Key Points
- DNS (Domain Name System) is a crucial component of the internet infrastructure.
- Its primary function is to convert human-readable domain names (like www.example.com) into IP addresses that computers use to identify each other on the network.
- Without DNS, we would need to remember the numerical IP addresses of every website we want to visit.
- The DNS system consists of a hierarchical structure, including root servers, top-level domain servers, and authoritative name servers.
- This system helps in the efficient routing of internet traffic and ensures that users can access websites using easy-to-remember names.
Additional Information
- DNS also supports the email system by mapping domain names to mail server addresses.
- It plays a role in load balancing by distributing traffic across multiple servers hosting the same content.
- DNS security extensions (DNSSEC) are used to protect against attacks such as cache poisoning and ensure data integrity.
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