how does caching increases the efficiency of name resolution
Answers
Explanation:
Answer:
From the above given options, the one which is true for DNS name resolution is - option d) All of these.
The process in which, an unique Internet Protocol address that is in textual form is being translated to an Internet Protocol address is called DNS resolution.
In case of iterative resolution , multiple DNS requests are sent to many DNS servers.
In case of recursive resolution only one DNS request is being sent to an immediate DNS server of its root.
For better performance distribution of load and aliasing of host is being done.
Catching increases the efficiency of name resolution
• When attempting to access a web page, the operating system (OS) employs caching to cache DNS resource entries, which reduces DNS lookup latency by avoiding redundancy.
• The DNS allows humans to keep track of more web pages and access them as needed, and DNS caching speeds up the DNS search process by resolving a domain name to an IP address faster when the OS has previously visited a web page.