A DNS record <span>is responsible for resolving an IP to a domain name. </span>The term DNS record denotes a database record, stored on DNS servers used to map a URL to an IP address. The process is the following: the URL is entered and searched in the browser, that URL is forwarded to the DNS servers and then directed to the specific Web server<span>.</span>
Fault Tolerance basically refers to the feature or capability of a system to keeps on working and performing its operations without interruption in case of a failure.
This failure can be the failure of one or more of its components.
This is beneficial as the system does not stop working or fail completely.
It provides copies of the same system or backup components which can be used when the existing system fails and prevents the loss of information and services.
Accessibility refers to provide equal services for everyone who uses a system. So its not a correct option.
Moore’s law states that the computing speed and power will double every two years so its not a correct option as well.
Anti virus is a software to identify, prevent and remove viruses and malware so it is not a correct option as well.
It's a relation of two attributes, usually between the primary key and other main attributes of a table. It turns the collection of tables into a third standard table array.
It allows you to controls the quality of data into the database.
It is the disparity between the positive and weak architecture of the database plays a crucial role.
