Question

	A.	Provides data independence
	B.	Encourages data sharing
	C.	Minimizes data redundancy
	D.	Increases data inconsistency

Which of the following statements about database systems is (are) true? (Check all that apply.)

Answer 1

Option A) Provides Data Independence, Option B) Encourages Data Sharing and Option C) Minimizes data redundancy all are correct.

Explanation :

Provides Data Independence - Data independence helps not to be dependent on the physical and logical attributes of the data . It saves time and reduces potential errors caused by changing of data ,as it allows to change schema at one level and after that no chnages are required at next higher level.

Encourages Data sharing - In a network a data can be stored in one or more servers ,database helps to present the data in a well managed way to the users which ultimately help them in taking quick response .

Minimizes data redundancy - The duplicacy of data used to create multiple copies of same data in different system across different locations,database systems prevents this by storing all data in a single database and thereby reducing data redundancy.

Incorrect :Option D) Increases data inconsistency - Database management systems reduces the data inconsistency . When same data with different versions appear at various places data inconsistency exists there, with help of proper database systems this can be minimized.