9 Questions TotalUnder 10 MCQs (Noindex)

Data Models MCQs

Topic-wise practice questions for Database Management Systems. Test your knowledge, check solutions on demand, and pace your preparation.

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Q1hard

A legacy banking system runs on an old Hierarchical database. A customer can have multiple accounts (checking, savings). However, the bank is trying to implement "Joint Accounts" where two distinct customers share one account. The development team reports this is extremely difficult. Why?

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Q2medium

In the Relational Data Model introduced by E.F. Codd in 1970, what fundamental mathematical concept serves as the absolute foundation for tables?

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Q3hard

A software architect is designing the backend for a social media application. The most critical, high-frequency query is finding "friends of friends of friends" (3rd-degree connections). Which data model is most highly optimized for this specific traversal operation?

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Q4medium

(Code/Data Tracing) Examine the raw data representation extracted from a database below. What type of data model is being utilized to store this record?

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Q5hard

During the initial requirements phase of a new university database, a database architect draws a diagram on a whiteboard. They draw rectangles for Students, diamonds representing Enrollments, and ovals representing Student_IDs. What specific data model is being utilized here?

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Q6medium

Which early database model organizes data in a strict upside-down tree structure, where every child record is allowed to have exactly one parent record?

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Q7medium

How did the Network Data Model fundamentally improve upon the limitations of the Hierarchical Data Model?

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Q8hard

Database design typically progresses through three distinct modeling phases. Which data model specifies the absolute low-level storage details, such as record formats, file structures, table spaces, and B-Tree access paths?

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Q9medium

In the context of database models and architecture, what specific problem does "Data Abstraction" solve for the end-user?

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