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Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is data independence?
π‘ Hint: Think about how changing one end of a structure can impact the rest.
Question 2
Easy
What does physical data independence allow you to change?
π‘ Hint: Consider changes in storage or indexing.
Practice 4 more questions and get performance evaluation
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
Which type of data independence allows changes to the internal schema without impacting the conceptual schema?
π‘ Hint: Think of physical alterations versus logical alterations.
Question 2
True or False: Logical data independence means changes will affect all application programs directly.
π‘ Hint: Think about what independent means.
Solve 1 more question and get performance evaluation
Push your limits with challenges.
Question 1
Consider a database system's schema that needs to evolve with new business requirements frequently. Propose a comprehensive strategy that leverages both physical and logical data independence to minimize disruption.
π‘ Hint: How can both types of independence provide a seamless transition?
Question 2
In an organization, new regulations require more detailed customer data. Describe how to manage this implementation while ensuring minimal impact on existing applications.
π‘ Hint: What might be necessary before new fields can be added?
Challenge and get performance evaluation