PrepAway - Latest Free Exam Questions & Answers

Which of the following database planning steps will help him to accomplishthe task?

Smith works as a Database Administrator for DWorldsInc. The management instructs him to plan a database
where identifying the key objects or entities for database management is important. Which of the following
database planning steps will help him to accomplishthe task?

PrepAway - Latest Free Exam Questions & Answers

A.
Object identification

B.
Gathering information

C.
Identifying the relationships between objects

D.
Object modeling

Explanation:
In the object identification process in database planning, it is necessary to identify the key objectsor entities for
database management.
There are generally a few primary objects, and oncethese are identified, the related items become visible.
Answer B is incorrect. Gathering information is thefirst step of database planning and requires a good
understanding of what tasks are

to be performed in the database. In case the database has to replace a paper-based or a manual system,the
old system can provide all the
necessary information. Moreover, all those who wereinvolved with the previous system should be interviewed
to determine what they did
and what is now needed for the new database. The limitations, problems, and bottlenecks of the old system
should also be identified.
Answer D is incorrect. Object modeling is the thirdstep in database planning in which objects are identified in
the system. A user
should record an object in such a way that it is represented visually in the system. He can use the database
model as a reference during
implementation of the database. Database developersuse tools such as pencils, paper, word processing etc.,
as well as create software
programs for data modeling of the database.
Answer C is incorrect. Identifying relationships between objects is the last step in database planning, which is
the ability to relate
information about various items in the database. Isolated types of information can be stored separately, but the
data can be combined
according to the requirements of the database engine. Identifying the relationship between objects in the
design process necessitates
looking at the tables, determining how the tables are logically related, and adding relational columnsto the
tables that establish a link from
one table to another.


Leave a Reply