COMPUTER FUNDAMENTALS

INTRODUCTION TO COMPUTERS

COMPUTER NETWORKS AND THE INTERNET

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

According to the domain name system (DNS), which of the following is a subdomain of the domain example.com?

A	about.example.com
B	example.com/about.html
C	xample.com.about
D	example.org

Explanation:

Detailed explanation-1: -In the Domain Name System (DNS) hierarchy, a subdomain is a domain that is a part of another (main) domain. For example, if a domain offered an online store as part of their website example.com, it might use the subdomain shop.example.com .

Detailed explanation-2: -DNS ensures the internet is not only user-friendly but also works smoothly, loading whatever content we ask for quickly and efficiently. It’s one of the cornerstones of how the internet operates. Without it, we’d be stuck memorizing long lists of numbers (IP addresses) to access the content we want.

Detailed explanation-3: -Primary Server. The primary server is the authoritative server for the zone. Secondary Servers. Secondary servers are backup DNS Servers. Caching Servers. 11-Jun-2021

There is 1 question to complete.