
ADET Prelim Exam
Quiz
•
Computers
•
University
•
Practice Problem
•
Hard
Fritzgerald Imperial
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60 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an ERD, a rectangle usually represents:
Attribute
Relationship
Entity
Primary Key
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A primary key must be:
nullable
repeated
foreign key
unique and not null
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes a foreign key?
A key that identifies a record uniquely within its own table
A key that refers to a primary key in another table
A key that has no constraints
A key that can be duplicated freely
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A one-to-many relationship in ERD means:
One entity is linked to one entity only
One entity is linked to multiple entities
Many entities are linked to one entity only
Many entities are linked to many entities
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is NOT a component of ERD?
Entities
Attributes
Relationships
Stored Procedures
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A weak entity in ERD is:
An entity without relationships
An entity dependent on another entity
An entity with multiple primary keys
An entity without attributes
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
SQL stands for:
Structured Quick Language
Server Query Language
Structured Query Language
Simple Query Language
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