Final answer:
DNS maps domain names to IP addresses, and the records are stored on DNS servers with a Time To Live (TTL) value indicating how long to cache them.
Step-by-step explanation:
DNS, which stands for Domain Name System, essentially maps domain names to IP addresses and is a critical component of how the Internet functions. These mappings, known as DNS records, are stored on DNS servers located around the world. A key aspect of DNS records is the Time To Live (TTL), which indicates how long a DNS record should be cached by a resolver or other DNS server before it should be discarded or refreshed. This value helps in managing the traffic on the DNS servers and ensuring that updated information is delivered efficiently to users.
DNS (Domain Name System) maps domain names to IP addresses and is stored on DNS servers. Every DNS record has a time to live (TTL) defined.
DNS is essential for the functioning of the internet. When a user enters a domain name in their web browser, the DNS server translates that domain name into the corresponding IP address, allowing the user to access the desired website.
For example, if a user types in 'www.example.com' in their browser, the DNS server retrieves the IP address associated with that domain, such as '192.0.2.1'. This IP address is then used to establish a connection with the web server hosting the website.