This sounds a bit like the token ring system in which only holders of the token are permitted to transmit.
Answer:
c. data mining
Explanation:
Data mining can be defined as the term which is used for knowing the user preferences by using their previous search queries.
Nowadays Data mining is being used by many companies to predict and show them the appropriate ads in front of them on the basis of their previous search queries.
so, according to the scenario, the most appropriate answer is option C.
Answer:
d. all of these are possible examples of data redundancy
Explanation:
Redundancy in database management systems (DBMS) is having the same data in more than one place.
If you look at the options, you will see all of them have situation that repeatation of the data.
a. storing the same information in several records
b. repeating data on multiple reports
c. using foreign keys which duplicate the values of primary keys
Select the part you want to move. Highlight it, and click ctrl+x. Then, go to the place you want to put it. Click ctrl+v. It should be cut and pasted
