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CompTIA DS0-001 Exam (page: 2)
CompTIA DataSys+
Updated on: 25-Dec-2025

Viewing Page 2 of 17
DS0-001 PDF 144 Questions

A database administrator is conducting a stress test and providing feedback to a team that is developing an application that uses the Entity Framework.
Which of the following explains the approach the administrator should use when conducting the stress test?

  1. Capture business logic, check the performance of codes, and report findings.
  2. Check the clustered and non-clustered indexes, and report findings.
  3. Review application tables and columns, and report findings.
  4. Write queries directly into the database and report findings.

Answer(s): A

Explanation:

The approach that the administrator should use when conducting the stress test is to capture business logic, check the performance of codes, and report findings. This will help the administrator to evaluate how well the application handles high volumes of data and transactions, identify any bottlenecks or errors in the code, and provide feedback to the development team on how to improve the application's efficiency and reliability. The other options are either too narrow or too broad in scope, and do not address the specific needs of an application that uses the Entity Framework.


Reference:

CompTIA DataSys+ Course Outline, Domain 4.0 Data and Database Security, Objective 4.3 Given a scenario, monitor database performance and security.



A database administrator is creating a table, which will contain customer data, for an online business.
Which of the following SQL syntaxes should the administrator use to create an object?









Answer(s): B

Explanation:

The SQL syntax that the administrator should use to create an object is option B. This syntax uses the CREATE TABLE statement to define a new table named customer with four columns: customer_id, name, email, and phone. Each column has a data type and a constraint, such as NOT NULL or PRIMARY KEY. The other options either have syntax errors, use incorrect keywords, or do not specify the table name or columns correctly.


Reference:

CompTIA DataSys+ Course Outline, Domain 1.0 Database Fundamentals, Objective 1.1 Given a scenario, identify and apply database structure types.



A database administrator wants to remove inactive customers from a database.
Which of the following statements should the administrator use?









Answer(s): A

Explanation:

The statement that the administrator should use to remove inactive customers from a database is option A. This statement uses the DELETE command to delete all the rows from the customer table where the status column is equal to 'inactive'. The other options either have syntax errors, use incorrect commands, or do not specify the condition correctly.


Reference:

CompTIA DataSys+ Course Outline, Domain 1.0 Database Fundamentals, Objective 1.2 Given a scenario, execute database tasks using scripting and programming languages.



Which of the following is the correct order of the steps in the database deployment process?


  1. 1. Connect
    2. Install
    3. Configure
    4. Confirm prerequisites
    5. Validate
    6. Test
    7. Release

  2. 1. Configure
    2. Install
    3. Connect
    4. Test
    5. Confirm prerequisites
    6. Validate
    7. Release

  3. 1. Confirm prerequisites
    2. Install
    3. Configure
    4. Connect
    5. Test
    6. Validate
    7. Release

  4. 1. Install
    2. Configure
    3. Confirm prerequisites
    4. Connect
    5. Test
    6. Validate
    7. Release

Answer(s): C

Explanation:

The correct order of the steps in the database deployment process is option C. This order follows the best practices for deploying a database system, which are:
Confirm prerequisites: Check the system requirements and compatibility of the database software and tools before installation.
Install: Install the database software and tools on the target server or platform. Configure: Configure the database settings and parameters according to the specifications and needs of the application or organization.
Connect: Connect the database to the network and other systems or applications that will access it. Test: Test the functionality and performance of the database system and verify that it meets the expectations and requirements.
Validate: Validate the data quality and integrity of the database system and ensure that it complies with the standards and regulations.

Release: Release the database system to production and make it available for use by end-users or customers. The other options do not follow this order and may result in errors, inefficiencies, or security issues.


Reference:

CompTIA DataSys+ Course Outline, Domain 2.0 Database Deployment, Objective 2.1 Given a scenario, install and configure database software and tools.



A company wants to deploy a new application that will distribute the workload to five different database instances. The database administrator needs to ensure that, for each copy of the database, users are able to read and write data that will be synchronized across all of the instances.

Which of the following should the administrator use to achieve this objective?

  1. [Peer-to-peer replication
  2. Failover clustering
  3. Log shipping
  4. Availability groups

Answer(s): A

Explanation:

The administrator should use peer-to-peer replication to achieve this objective. Peer-to-peer replication is a type of replication that allows data to be distributed across multiple database instances that are equal partners, or peers. Each peer can read and write data that will be synchronized across all peers. This provides high availability, scalability, and load balancing for the application. The other options are either not suitable for this scenario or do not support bidirectional data synchronization. For example, failover clustering provides high availability but does not distribute the workload across multiple instances; log shipping provides disaster recovery but does not allow writing data to secondary instances; availability groups provide high availability and read- only access to secondary replicas but do not support peer-to-peer replication.


Reference:

CompTIA DataSys+ Course Outline, Domain 5.0 Business Continuity, Objective 5.3 Given a scenario, implement replication of database management systems.



Viewing Page 2 of 17



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