Q.1
When the minimum number of instances of an entity is one, you know which of the following?
Q.2
A good business rule is which of the following?
Q.3
An oval represents which of the following in an ERD?
Q.4
When the minimum and maximum number of instances of an entity is one, you know which of the following?
Q.5
An attribute name should be which of the following?
Q.6

A composite attribute is which of the following?

  • An attribute that can be broken into components
  • An attribute that cannot be broken into components
  • Multiple attributes
  • An identifier
Q.7

A rectangle represents which of the following in an ERD?

  • Attribute
  • Entity
  • Optional One
  • Relationship
Q.8

A binary relationship cannot be which of the following?

  • One-to-One
  • One-to-Many
  • Many-to-Many
  • Zero-to-Zero
Q.9

A ternary relationship involves how many entities?

  • 3 or less
  • 3
  • More than 3
  • 3 or more
Q.10

An entity name should be which of the following?

  • A singular noun
  • Specific to the organization
  • Concise
  • All of the above.
Q.11

An oval represents which of the following in an ERD?

  • Attribute
  • Entity
  • Optional One
  • Relationship
Q.12

When the minimum number of instances of an entity is one, you know which of the following?

  • Mandatory one
  • Optional one
  • Mandatory many
  • Cannot tell
Q.13

When the minimum and maximum number of instances of an entity is one, you know which of the following?

  • Mandatory one
  • Optional one
  • Mandatory many
  • Cannot tell
Q.14

A good business rule is which of the following?

  • Declarative
  • Imprecise
  • Redundant
  • Compound
Q.15

An attribute name should be which of the following?

  • Singular verb or verb phrase
  • Follow a standard format
  • Use a alias
  • All of the above.
Q.16

A binary relationship is which of the following?

  • A relationship between two attributes
  • A relationship between two entities
  • An attribute with two different relationships
  • An entity with two different relationships
Q.17

If there are two entities with a relationship between them, and one of the entities is completely dependent on the other, then which of the following must exist?

  • Derived attribute
  • Optional one cardinality
  • Multi-valued attribute
  • Weak entity
Q.18

A relationship is which of the following?

  • A person, place, or thing
  • Property or characteristic of an entity
  • Link between entities
  • Weak entity
Q.19

A derived attribute is an attribute whose values can be calculated from a related relationship.

  • True
  • False
Q.20

A relationship is an association representing the interaction between attributes.

  • True
  • False
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