DS0-001: CompTIA DataSys+Demo

By CompTIA · Browse Mode
About the Exam

CompTIA DataSys+ is a vendor-neutral certification for IT professionals working in database administration and data systems management. It covers database deployment, management and maintenance, scripting and programming in a database environment, data and database security, and business continuity. Passing demonstrates skills in deploying, managing, maintaining, securing, and supporting databases using practical, real-world best practices.

Exam Topics

  • Database Fundamentals24%
  • Database Deployment16%
  • Database Management and Maintenance25%
  • Data and Database Security23%
  • Business Continuity12%

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Last updated July 5, 2026 at 6:29 PM

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QuestionQ1

Data and Database Security

A database administrator configured a connection to a SQL Server instance for a new user, but cannot connect from the user's workstation. Which of the following is the most likely cause of the issue?

  • A The SQL Server codes are performing badly.
  • B The SQL Server has not been tested properly.
  • C The SQL Server ports to the main machine are closed.
  • D The SQL Server has many concurrent users.
Explanation

A client workstation must be able to reach the SQL Server instance over its configured network port. If the required SQL Server port is closed by a firewall or network rule, the connection cannot be established.

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QuestionQ2

Database Management and Maintenance

A database administrator is migrating data from a legacy table to a newer table. Both tables have the same columns, and some data may overlap.

Which SQL command should the administrator use to ensure that records from the two tables are not duplicated?

  • A UNION
  • B JOIN
  • C INTERSECT
  • D CROSS JOIN
Explanation

UNION combines the rows returned from two compatible queries and removes duplicate rows by default. UNION ALL would retain duplicates; joins serve different purposes, and INTERSECT would return only the rows shared by both tables.

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QuestionQ3

Business Continuity

A company must prepare a document that defines the responsibilities, metrics, penalties, and other general terms a provider must meet so customers can use its platforms.

Which of the following documents satisfies these requirements?

  • A DOU
  • B SLA
  • C MOU
  • D SOW
Explanation

A Service Level Agreement (SLA) establishes the service commitments a provider makes to customers, including performance metrics, responsibilities, and remedies or penalties when agreed service levels are not met.

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QuestionQ4

Database Fundamentals

A database is set up to use undo management with temporary undo enabled. An UPDATE is executed on the table.

Which option describes where the undo is stored?

  • A In the system global area
  • B In the undo tablespace
  • C In the SYSAUX tablespace
  • D In the temporary tablespace
Explanation

With TEMP_UNDO_ENABLED set to TRUE, Oracle separates undo for temporary objects from undo for persistent objects. An UPDATE of a persistent table stores its undo in the undo tablespace; only undo for temporary objects is stored in a temporary tablespace.

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QuestionQ5

Database Deployment

Which of the following deployment phases is when a DBA ensures that the latest patches are applied to the new database?

  • A Importing
  • B Upgrading
  • C Provisioning
  • D Modifying
Explanation

Provisioning prepares a new database for service, including applying current patches so the database begins operation at the required software and security level.

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