Computer Knowledge

Database Management Systems

5,344 Questions

Database Management Systems (DBMS) form the core framework for data storage, retrieval, and security in modern software applications. Concepts such as the E-R model, backup planning, SQL integration, and big data architecture are essential for computer knowledge sections. This hub offers a comprehensive set of practice questions to master DBMS fundamentals and advanced database operations.

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Database Management Systems Questions

Multiple choice

Which of the following is not a record based logical model?

  1. Network model

  2. Object-oriented model

  3. Relational model

  4. Hierarchical model
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Record-based logical models include the Relational, Network, and Hierarchical models. The Object-oriented model is an object-based logical model, not a record-based one.

Multiple choice

PDU means

  1. Parallel Data Unit

  2. Positve Data Unit

  3. Poly Data Unit

  4. Protocol Data Unit
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

PDU stands for Protocol Data Unit, which is the unit of data exchanged between peer entities in the same layer.

Multiple choice

SDU means

  1. Service Data Unit

  2. Several Data Unit

  3. Seperate Data Unit

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

SDU stands for Service Data Unit, which is the data unit passed between layers when requesting services. It's the user data that needs to be transmitted.