er diagrams

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Weak entities are used in entity relationship diagrams and are denoted by

Weak entities are used in entity relationship diagrams and are denoted by
  • A. double rectangles
  • B. double square
  • C. double ovals
  • D. double squares
  • Correct Answer: Option A

Derived attributes in entity relationship diagrams are denoted by

Derived attributes in entity relationship diagrams are denoted by
  • A. dotted triangle
  • B. dotted rectangle
  • C. dotted oval
  • D. dotted square
  • Correct Answer: Option C

In constructing ER diagrams, double ovals are used to denote

In constructing ER diagrams, double ovals are used to denote
  • A. multi-value table
  • B. multi-value entity
  • C. multi-value attributes
  • D. multi-value key
  • Correct Answer: Option C

In ER diagrams, rectangles are used to denote

In ER diagrams, rectangles are used to denote
  • A. entity types
  • B. attribute types
  • C. key types
  • D. structure types
  • Correct Answer: Option A