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.
When Microsoft donated copies of Word program to colleges
and universities, the company Microsoft is using a Marketing Strategy in
promoting the product. A good promotion will help the product to be known and
by words of mouth it will basically promote the product and the users will
definitely give comments on how the product performs.
Answer:
r = 1
Explanation:
Average processing time ( p ) = 3 minutes
Average inter-arrival time ( a ) = 3 minutes
number of servers ( m ) = 3
<u>Determine the value of r </u>
r ( offered load ) = p/a
= 3 / 3 = 1
∴ value of r ( offered load ) = 1
