[Solved] Working with data in the data cache is many times faster than working with data in the data files because ____.

McqMate

Q.	Working with data in the data cache is many times faster than working with data in the data files because ____.
A.	there is no network access involved
B.	the DBMS doesn't have to wait for the hard disk to retrieve the data
C.	the DBMS can optimize queries against the cache
D.	the data cache contains only a few records from each table
Answer» B. the DBMS doesn't have to wait for the hard disk to retrieve the data

1k

0

Do you find this helpful?

6

View all MCQs in

Advanced Database Management Systems (ADBMS)

Discussion

No comments yet

Related MCQs

A(n) ____ is a logical grouping of several data files that store data with similar characteristics.
Because it contains a description of its own structure, a database is considered to be ________ .
How many inference rules are there for functional dependencies?
In a one-to-many relationship, the entity that is on the one side of the relationship is called a(n) ________ entity.
How many tables can be joined to create a view?
For every relationship, how many possible types of actions are there when enforcing minimum cardinalities?
What SQL command will allow you to change the table STUDENT to add the constraint named GradeCheck that states that the values of the Grade column must be greater than 0?
What separates the physical aspects of data storage from the logical aspects of data representation?
What scheme defines how and where the data are organized in a physical data storage?
…………….is a best source of data for a data mining operation