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MIDTERM COP 4703 Questions with complete solution 2024

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MIDTERM COP 4703 Questions with complete solution 2024 MIDTERM COP 4703 1. Redundancy wastes space because you are storing different types of data in the same place. - correct answer False. Redundancy is data stored in different places not in the same place. 2. When you need to change da...

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  • September 7, 2024
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  • 2024/2025
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MIDTERM COP 4703
1. Redundancy wastes space because you are storing different types of data
in the same place. - correct answer ✔False.
Redundancy is data stored in different places not in the same place.


2. When you need to change data, redundancy makes your changes more
cumbersome and time-consuming. - correct answer ✔TRUE


3. An entity is also defined as an attribute. - correct answer ✔False.
An entity is a person, place, object for which you want to store and process
data.


4. An attribute is a characteristic or property of an entity. - correct answer
✔TRUE


5. An attribute is known as a row in most databases. - correct answer
✔False.
Each column (attribute) contains describing characteristics of the rows. A
database attribute is a column name and the content of the fields under it in a
table in a database.


6. A database will not only hold information about multiple types of entities,
but also information about the relationships among these multiple entities. -
correct answer ✔TRUE


7. Each table in a database represents two or more entities. - correct answer
✔FALSE

,8. The relationship between different entities (in different tables) is handled by
their common columns. - correct answer ✔TRUE


9. Software packages, called database management systems, can do the job
of manipulating databases for you. - correct answer ✔TRUE


10. Programs created with Visual Basic, Java, Perl, PHP, or C++ can access
the database directly, rather than having to access it through the DBMS. -
correct answer ✔False
Only the DBMS actually access the database


11. To create forms to use with a database you must write a program. -
correct answer ✔FALSE


12. Sharing data is one advantage of database processing. - correct answer
✔TRUE


13. An advantage of using the database approach to processing is that it
facilitates consistency. - correct answer ✔TRUE


14. A DBA can assign passwords to prevent unauthorized users from
accessing the data. - correct answer ✔TRUE


15. There is a greater impact of failure in a nondatabase, file-oriented system.
- correct answer ✔False


16. Storing the same data in more than one place is called ___________ -
correct answer ✔redundancy

, 17. A(n)______________is also called a field or column in many database
systems. - correct answer ✔Attribute


18. A(n)__________ is a person, place, object, event, or idea for which you
want to store and process data. - correct answer ✔Entity


19. A(n) _____________ is the computer counterpart to an ordinary paper file
you might keep in a file cabinet or an accounting ledger. - correct answer
✔data file


20. The ____ of an entity become the columns in the database table. - correct
answer ✔Attributes


21. Unlike a typical data file, a database can store information about multiple
_________. - correct answer ✔Entities


22. A visual way to represent a database is with a(n) ____. - correct answer
✔Entity-relationship diagram


23. Popular _____________ include Access, Oracle, DB2, MySQL, and SQL
Server. - correct answer ✔Database Management Software


24. During the _______________ process, a database expert determines the
structure of the required database. - correct answer ✔Database design


25. __________are screen objects used to maintain, view, and print data from
a database. - correct answer ✔Forms

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