Answer:
Explanation:
Duplicate tuples are not allowed in a relation because the specifications of the constraints of the regional integrity are violated, especially the main constraint that states that there can be no identical values for the attributes of two tuples at any database relation state.
Also, duplicate tuples are not allowed in a relation due to the fact that they lead to redundancy of the data base which in turn, slowing down the speed of the database when data processing such as inserting, querying, updating, deleting, etc are being performed.
Answer:
it would be Animation I declare
The two major types of DNS request are as follows;
- Recursive Query
- Iterative Query
<h3>What is a domain name system?</h3>
Domain name system is abbreviated as DNS.
A Domain Name System (DNS) converts domain names into IP addresses, which allow browsers to get to websites and other internet resources.
Basically, DNS is a directory of names that match with numbers.
Computer uses IP addresses to communicate, therefore, the DNS convert domain names to IP address for communication.
The two major types of DNS request are as follows;
- Recursive Query - Query that demands a resolution
- Iterative Query - Query that does not demand a resolution.
learn more on DNS here: brainly.com/question/14397200
#SPJ11
