Discussion
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- Question
When the minimum number of instances of an entity is one, you know which of the following?
Options- A. Mandatory one
- B. Optional one
- C. Mandatory many
- D. Cannot tell
- Correct Answer
- Cannot tell
- 1. An attribute name should be which of the following?
Options- A. Singular verb or verb phrase
- B. Follow a standard format
- C. Use a alias
- D. All of the above. Discuss
- 2. A composite attribute is which of the following?
Options- A. An attribute that can be broken into components
- B. An attribute that cannot be broken into components
- C. Multiple attributes
- D. An identifier Discuss
- 3. An oval represents which of the following in an ERD?
Options- A. Attribute
- B. Entity
- C. Optional One
- D. Relationship Discuss
- 4. When the minimum and maximum number of instances of an entity is one, you know which of the following?
Options- A. Mandatory one
- B. Optional one
- C. Mandatory many
- D. Cannot tell Discuss
- 5. A good business rule is which of the following?
Options- A. Declarative
- B. Imprecise
- C. Redundant
- D. Compound Discuss
- 6. 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?
Options- A. Derived attribute
- B. Optional one cardinality
- C. Multi-valued attribute
- D. Weak entity Discuss
- 7. A binary relationship is which of the following?
Options- A. A relationship between two attributes
- B. A relationship between two entities
- C. An attribute with two different relationships
- D. An entity with two different relationships Discuss
- 8. A rectangle represents which of the following in an ERD?
Options- A. Attribute
- B. Entity
- C. Optional One
- D. Relationship Discuss
- 9. Which of the following conditions should exist if you want to convert a relationship to an associative entity?
Options- A. Some of the relationships for the participating entities are "many".
- B. The resulting associative entity has an independent meaning.
- C. The resulting associative entity has no attributes.
- D. All of the above Discuss
- 10. A relationship is which of the following?
Options- A. A person, place, or thing
- B. Property or characteristic of an entity
- C. Link between entities
- D. Weak entity Discuss
Modeling Data in the Organization problems
Search Results
Correct Answer: Follow a standard format
Correct Answer: An attribute that can be broken into components
Correct Answer: Attribute
Correct Answer: Mandatory one
Correct Answer: Declarative
Correct Answer: Weak entity
Correct Answer: A relationship between two entities
Correct Answer: Entity
Correct Answer: The resulting associative entity has an independent meaning.
Correct Answer: Link between entities
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