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Which of the following is NOT a type of relationship in an ER model?

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Question: Which of the following is NOT a type of relationship in an ER model?

Options:

  1. One-to-One
  2. One-to-Many
  3. Many-to-Many
  4. Many-to-One

Correct Answer: Many-to-One

Solution: 

All listed options are types of relationships in an ER model; however, \'Many-to-One\' is typically described as \'One-to-Many\' from the other entity\'s perspective.

Which of the following is NOT a type of relationship in an ER model?

Practice Questions

Q1
Which of the following is NOT a type of relationship in an ER model?
  1. One-to-One
  2. One-to-Many
  3. Many-to-Many
  4. Many-to-One

Questions & Step-by-Step Solutions

Which of the following is NOT a type of relationship in an ER model?
Correct Answer: None of the options are correct
  • Step 1: Understand what an ER model is. An ER model (Entity-Relationship model) is a way to represent data and relationships between data in a database.
  • Step 2: Learn about types of relationships in an ER model. The common types are One-to-One, One-to-Many, and Many-to-Many.
  • Step 3: Identify the options given in the question. Look for the relationship types listed.
  • Step 4: Analyze the options. Check if 'Many-to-One' is mentioned. Remember that 'Many-to-One' is usually described as 'One-to-Many' from the perspective of the other entity.
  • Step 5: Conclude that all options listed are types of relationships in an ER model, but 'Many-to-One' is not typically used as a standalone term.
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