Tag: databases

Questions Related to databases

  1. Primary key access

  2. Access via unique index

  3. Table access by ROWID

  4. Full table scan


Correct Option: C
  1. Database Engine Tuning Advisor

  2. SQL Server Configuration Manager

  3. Database Maintenance Plan Wizard

  4. Database Maintenance design surface


Correct Option: C
  1. Find the process in System Monitor and select Kill Process.

  2. Find the process in Activity Monitor and select Kill Process.

  3. Find the process in SQL Profiler and select Kill Process.

  4. Find the process in SSRS and select Kill Process.


Correct Option: B
  1. SQL cannot support object-orientation

  2. The same query can be written in many ways, each with vastly different execution plans.

  3. SQL syntax is too difficult for non-computer professionals to use

  4. SQL creates excessive locks within the database


Correct Option: B
  1. At least one data mart

  2. Data that can extracted from numerous internal and external sources

  3. Near real-time updates

  4. All of the above.


Correct Option: D
  1. Data stored in the various operational systems throughout the organization.

  2. Current data intended to be the single source for all decision support systems.

  3. Data stored in one operational system in the organization.

  4. Data that has been selected and formatted for end-user support applications.


Correct Option: B
  1. Data in which changes to existing records cause the previous version of the records to be eliminated

  2. Data in which changes to existing records do not cause the previous version of the records to be eliminated

  3. Data that are never altered or deleted once they have been added

  4. Data that are never deleted once they have been added


Correct Option: A
  1. Capturing all of the data contained in various operational systems

  2. Capturing a subset of the data contained in various operational systems

  3. Capturing all of the data contained in various decision support systems

  4. Capturing a subset of the data contained in various decision support systems


Correct Option: B
  1. A process to reject data from the data warehouse and to create the necessary indexes

  2. A process to load the data in the data warehouse and to create the necessary indexes

  3. A process to upgrade the quality of data after it is moved into a data warehouse

  4. A process to upgrade the quality of data before it is moved into a data warehouse


Correct Option: D