Midterm Quiz3 - Information Management

What does ERM stand for?

• Entity Resource Model

• Entity Resource Management

• Entity Relationship Management

• Entity Relationship Model

How are entities represented in an ERD?

• Rectangle

• Square

• Circle

• Triangle

What is the name of the relationship usually represented by in an ERD?

• Adverb

• Noun

• Adjective

• Verb

Which notation represents relationships with a diamond connected to related entities?

• Circle notation

• Square notation

• Crow's Foot notation

• Chen notation

How are attributes represented in the original Chen notation?

• Ovals connected to the entity rectangle

• Squares connected to the entity rectangle

• Circles connected to the entity rectangle

• Triangles connected to the entity rectangle

In the Crow's Foot notation, where are attributes written?

• Outside the entity rectangle

• Below the entity rectangle

• Inside the entity rectangle

• Above the entity rectangle

What is used to mark the primary and foreign keys in the Crow's Foot notation?

• XY and Z

• AB and CD

• PK and FK

• LM and NO

How many paintings can a painter paint according to the Chen notation example?

• Zero or many

• Zero or one

• One or many

• Exactly one

How many departments can a manager manage according to the Chen notation example?

• Exactly one

• Zero or one

• One or many

• Zero or many

What is the name of the attribute box below the entity rectangle in Crow's Foot notation?

• Value Box

• Property Box

• Attribute Box

• Data Box