D426 Exam Questions And Correct Answers
A record consists of a ________.
set of one or more fields
3 multiple choice options
A DBMS performs several important functions that guarantee the integrity and consistency of
the data in the database. Which of the following is NOT one of those function...
D426 Exam Questions And Correct Answers
A record consists of a ________.
set of one or more fields
3 multiple choice options
A DBMS performs several important functions that guarantee the integrity and consistency of
the data in the database. Which of the following is NOT one of those functions
Data Reports
3 multiple choice options
Which item is unstructured data.
A video
3 multiple choice options
Data is/are:
raw facts
3 multiple choice options
Which classification is correct for the box marked "Registration" in the given E-R Diagram?
Intersection data
3 multiple choice options
Which type of relationship exists between Student and Course?
Many-to-many binary
3 multiple choice options
What is the E-R Diagram about an online pet food vendor showing?
One Invoice Line must include a minimum of one and a maximum of one Item.
A pet owner can have many pets; a specific pet is linked to one pet owner.
Which kind of binary relationship is described in this example?
One-to-many
3 multiple choice options
Database models were developed to ____.
model real-world events or conditions
3 multiple choice options
What is the correct way to read the modality on the right side of the association?
A minimum of zero activities
3 multiple choice options
What is the modality of Volunteer?
At least one
3 multiple choice options
What type of relationship is expressed with the phrase "A Painter paints one or more Paintings"?
1:M
3 multiple choice options
The entity integrity rule requires that ____.
all primary key entries are unique
3 multiple choice options
What does the 'refer' in referential integrity mean?
A foreign key in a table must refer to a valid primary key in another table.
3 multiple choice options
A table is perceived as a ____.
two-dimensional structure
3 multiple choice options
Another word for the term "relation" is ____.
table
3 multiple choice options
DISTINT filters the results to remove duplicates. ORDER BY ____.
modifies the presentation by changing the order of the result set.
3 multiple choice options
A primary key ____.
must be unique
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