Answer:
A. set_union
Explanation:
The algorithm set_union is used to find the elements in one range of elements that do not appear in another range of elements.
Answer:
the variable used in a loop to control the number of timer is executed is called a interaction.
Explanation:
a particular way in which matter, fields, and atomic and subatomic particles affect one another
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>