Free DMF-1220 Exam Braindumps (page: 9)

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Examples of the `What' entity category include the following nouns:

  1. Product
  2. Service
  3. Time
  4. Sales amount
  5. Payment quantity
  6. All of the above

Answer(s): A,B



High quality data definition exhibit three characteristics:

  1. Clearness
  2. Clarity
  3. Accuracy
  4. Completeness

Answer(s): B,C,D



The number of entities in a relationship is the arity of the relationship. The most common are:

  1. Unary
  2. Binary
  3. Trinary
  4. Ternary

Answer(s): A,B,D



What type of key is used in physical and sometimes logical relational data modelling schemes to represent a relationship?

  1. Primary key
  2. Foreign key
  3. Network key
  4. Applications key
  5. Door key
  6. All of the above

Answer(s): B






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