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.

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

Database Management Systems Questions

Multiple choice

Which of the following processes is responsible for signaling database writer at the checkpoints and updating all the datafiles and control files of the database to indicate the most recent checkpoints?

  1. Registration

  2. Lock manager server

  3. Database writer

  4. Checkpoint process

  5. Log writer
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This process is responsible for signaling database writer at the checkpoints and updating all the datafiles and control files of the database to indicate the most recent checkpoints.

Multiple choice

In which of the following components of the recovery manager environment is the client application spawn server sessions on the target database to do work of backup or recovery?

  1. Client

  2. Media management catalog

  3. Logical standby database

  4. RMAN client

  5. Duplicate database
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In this component of the recovery manager environment, the client application spawn server sessions on the target database to do work of backup or recovery.

Multiple choice

Which of the following components of data warehouse architecture has the major function to extract the data, transform the data, and then load the data into the data warehouse storage?

  1. Data storage component

  2. Information delivery component

  3. Metadata component

  4. Data staging component

  5. Management and control component
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This component of data warehouse architecture has the major function to extract the data, transform the data, and then load the data into the data warehouse storage.