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. Two-very-safe

  2. Detection of failuer

  3. Growing phase

  4. Exclusive mode

  5. One-safe

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

The problem with this scheme is that updates of a committed transaction may not have made it to the backup site, when the backup site takes over processing.