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.
Console Port Method
Connecting a computer to a Cisco device through the console port requires a special console cable.
Note:
% is Modulus,
So it's taken as num mod 7, if that evaluates to 0 there is no reminder therefore divisible by 7.
A food establishment needs a thermometer to make sure no food is under cooked or overly cooked