Database Design Quiz Week 2
Authored by Atisang Molapo
Computers
University
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which notation uses rounded corners (soft boxes) for entities in ER diagrams?
Crow’s Foot
Chen’s Notation
Barker’s Notation
UML
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a mandatory attribute marked with in ER diagrams?
Lowercase "o"
Asterisk (*)
Hash (#)
Exclamation mark (!)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a non-relational database?
MySQL
MongoDB
PostgreSQL
Microsoft SQL Server
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Resolving a many-to-many relationship typically involves:
Deleting one entity
Adding an associative entity
Using abbreviations
Ignoring the relationship
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which component of a relationship indicates whether it is required to exist?
Degree
Optionality
Name
Cardinality
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of a Unique Identifier (UID)?
To store redundant data
To distinguish one instance from another
To calculate derived values
To name relationships
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which data category includes pre-computed summaries for faster queries?
Fact Data
Summary Data
Reference Data
Metadata
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