
DBAS6211_LU1_Exercise_1
Authored by Gift Maputle
Computers
University
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
What does the physical level of data abstraction in a database management system (DBMS) primarily deal with?
Logical representation of data
Conceptual organization of data
Physical storage structure of data
Security measures for data access
2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Which level of data abstraction provides a view of the database that hides details of the physical storage structures and focuses on how data is logically organized?
Physical Database Model
External View Model
Conceptual Data Model
Logical Database Model
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these is not a component of a DBMS?
Statements
Hardware
People
Data
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which level of data abstraction describes the overall logical structure of the entire database?
Application level
Physical level
Conceptual level
External level
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At which level of data abstraction do users interact with the database by writing queries and generating reports?
External level
Conceptual level
Logical level
Physical level
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which level of data abstraction focuses on the relationships between data entities and the constraints on data operations?
Conceptual level
Logical level
External level
Application level
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which level of data abstraction deals with the way data is stored in terms of bytes, blocks, and pages?
Logical level
External level
Conceptual level
Physical level
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