IS 340 Exam 1 Comprehensive Questions And Correct Detailed Answers.
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a record - correct answer Which of the following represents a row in a table?
one-to-many - correct answer Which of the following defines a relationship in which each occurrence of data in one entity is r...
IS 340 Exam 1
a record - correct answer Which of the following represents a row in a table?
one-to-many - correct answer Which of the following defines a relationship in
which each occurrence of data in one entity is represented by multiple occurrences of the data in the
other entity?
some-to-many - correct answer Which of the following is not an E-R model
relationship?
a straight line with a crow's foot at both ends - correct answer Which of the
following symbols represents a many-to-many relationship in an E-R model?
unnormalized data - correct answer Which of the following can contain
repeating groups?
one-to-one - correct answer Which of the following defines a relationship in
which each occurrence of data in one entity
is represented by only one occurrence of data in the other entity?
3NF - correct answer Which of the following has no partial or transitive
dependencies?
a straight line with a crow's foot at one end - correct answer Which of the
following symbols represents a one-to-many relationship in an E-R model?
2NF - correct answer Which of the following has no partial dependencies but
can contain transitive
dependencies?
, 1NF - correct answer Which of the following has no repeating groups but can
contain partial or transitive
dependencies?
primary key - correct answer The unique identifier for a record is called the:
foreign key - correct answer Which of the following fields also serves as a
primary key in another table when two tables
are joined together on that value?
composite primary key - correct answer A unique identifier for a data row that
consists of more than one field is commonly called a:
a dashed line - correct answer Which of the following symbols represents an
optional relationship in an E-R model?
many-to-many relationship - correct answer Which of the following, when
used in an E-R model, indicates the need for an additional
table?
a column - correct answer Which of the following represents a field in a table?
many-to-many - correct answer Which of the following defines a relationship
in which data can have multiple occurrences in
each entity?
transitive dependency - correct answer When part of the data in a table
depends on a field in the table that isn't the table's primary key, it's known as:
common field - correct answer Which of the following is used to join data
contained in two or more tables?
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