Computer Knowledge

Database Management Systems

5,543 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.

E-R Model ConceptsBackup and RecoverySQL Server UpgradesJDBC and ODBCBig Data CharacteristicsData VirtualizationOracle Database

Database Management Systems Questions

Multiple choice
  1. Availbility and integrity

  2. Integrity and confidentiality

  3. Availability and confidentiality

  4. Availability, integrity and confidentiality

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

For data to be truly useful in a secure system, it needs all three CIA triad properties: availability (accessible when needed), integrity (accurate and unaltered), and confidentiality (protected from unauthorized access).

Multiple choice
  1. Atomicity

  2. Commit

  3. Isolation

  4. Durability

  5. Serialisability

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This property of transaction in distributed database guarantees that when the transaction is committed, the results of operations will never be lost, independent of subsequent failures.