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CompTIA DataSys+ Certification Exam DS0-001 Exam

Attempt the CompTIA DataSys+ practice test and solve real exam-like DS0-001 questions to prepare efficiently and increase your chances of success. Our CompTIA DS0-001 practice questions match the actual CompTIA DataSys+ Certification Exam format, helping you enhance confidence and improve performance. With our DS0-001 practice exam software, you can analyze your performance, identify weak areas, and work on them effectively to boost your final CompTIA DataSys+ exam score.

Vendor:	CompTIA
Exam Name:	CompTIA DataSys+ Certification Exam
Registration Code:	DS0-001
Related Certification:	CompTIA DataSys+ Certification
Exam Track:	Data management certifications
Exam Audience:	Database Administrators,

Total Questions

Last Updated

04-07-2026

Exam Duration

90 MINUTES

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Question: 1

Which of the following firewall types allows an administrator to control traffic and make decisions based on factors such as connection information and data flow communications?

ACircuit-level

BStateful

CProxy

DPacket

Answer: B

Explanation:

The firewall type that allows an administrator to control traffic and make decisions based on factors such as connection information and data flow communications is stateful. A stateful firewall is a type of firewall that tracks the state of each connection and packet that passes through it, and applies rules or policies based on the context and content of the traffic. A stateful firewall can control traffic and make decisions based on factors such as source and destination IP addresses, ports, protocols, session status, application layer data, etc. The other options are either different types of firewalls or not related to firewalls at all. For example, a circuit-level firewall is a type of firewall that monitors and validates the establishment of TCP or UDP connections; a proxy firewall is a type of firewall that acts as an intermediary between the source and destination of the traffic; a packet firewall is a type of firewall that filters packets based on their header information.Reference:CompTIA DataSys+ Course Outline, Domain 4.0 Data and Database Security, Objective 4.2 Given a scenario, implement security controls for databases.

Question: 2

An on-premises application server connects to a database in the cloud. Which of the following must be considered to ensure data integrity during transmission?

ABandwidth

BEncryption

CRedundancy

DMasking

Answer: B

Explanation:

The factor that must be considered to ensure data integrity during transmission is encryption. Encryption is a process that transforms data into an unreadable or scrambled form using an algorithm and a key. Encryption helps protect data integrity during transmission by preventing unauthorized access or modification of data by third parties, such as hackers, eavesdroppers, or interceptors. Encryption also helps verify the identity and authenticity of the source and destination of the data using digital signatures or certificates. The other options are either not related or not sufficient for this purpose. For example, bandwidth is the amount of data that can be transmitted over a network in a given time; redundancy is the duplication of data or components to provide backup or alternative sources in case of failure; masking is a technique that replaces sensitive data with fictitious but realistic data to protect its confidentiality or compliance.Reference:CompTIA DataSys+ Course Outline, Domain 4.0 Data and Database Security, Objective 4.2 Given a scenario, implement security controls for databases.

Question: 3

A business analyst is using a client table and an invoice table to create a database view that shows clients who have not made purchases yet. Which of the following joins is most appropriate for the analyst to use to create this database view?

AINNER JOIN ON Client.Key = Invoice.Key

BRIGHT JOIN ON Client.Key = Invoice.Key WHERE BY Client.Key IS NOLL

CLEFT JOIN ON Client.Key = Invoice.Key

DLEFT JOIN ON Client.Key = Invoice.Key WHERE BY Invoice.Key IS NOLL

Answer: D

Explanation:

The join that is most appropriate for the analyst to use to create this database view is option D. This join uses theLEFT JOINclause to combine theclienttable and theinvoicetable based on the matching values in theKeycolumn. TheWHEREclause filters out the rows where theInvoice.Keycolumn is not null, meaning that the client has made a purchase. The result is a view that shows only the clients who have not made any purchases yet. The other options either do not produce the desired result or have syntax errors. For example, option A would show only the clients who have made purchases, option B would show only the invoices that do not have a matching client, and option C would show all the clients regardless of their purchase status.Reference:CompTIA DataSys+ Course Outline, Domain 1.0 Database Fundamentals, Objective 1.2 Given a scenario, execute database tasks using scripting and programming languages.

Question: 4

A database administrator needs to ensure that a newly installed corporate business intelligence application can access the company's transactional dat

a. Which of the following tasks should the administrator perform first?

ACreate a new service account exclusively for the business intelligence application.

BBuild a separate data warehouse customized to the business intelligence application's specifications.

CSet up a nightly FTP data transfer from the database server to the business intelligence application server.

DSend the business intelligence administrator the approved TNS names file to configure the data mapping.

EOpen a new port on the database server exclusively for the business intelligence application.

Answer: A

Explanation:

The first task that the administrator should perform is to create a new service account exclusively for the business intelligence application. This will ensure that the application has the appropriate permissions and credentials to access the company's transactional data. The other options are either unnecessary, inefficient, or insecure. For example, building a separate data warehouse would require additional resources and time, setting up a nightly FTP data transfer would expose the data to potential breaches, sending the TNS names file would not guarantee that the application can connect to the database, and opening a new port on the database server would create a vulnerability for attackers.Reference:CompTIA DataSys+ Course Outline, Domain 2.0 Database Deployment, Objective 2.1 Given a scenario, install and configure database software and tools.

Question: 5

A database administrator set up a connection for a SQL Server instance for a new user, but the administrator is unable to connect using the user's workstation. Which of the following is the most likely cause of the issue?

AThe SQL Server codes are performing badly.

BThe SQL Server has not been tested properly.

CThe SQL Server ports to the main machine are closed.

DThe SQL Server has many concurrent users.

Answer: C

Explanation:

The most likely cause of the issue is that the SQL Server ports to the main machine are closed. SQL Server uses TCP/IP ports to communicate with clients and other servers. If these ports are blocked by a firewall or other network device, the connection will fail. The administrator should check the port configuration on both the server and the user's workstation, and make sure that they are open and match the expected values. The other options are either unlikely or unrelated to the issue. For example, the SQL Server codes performing badly or having many concurrent users may affect the performance or availability of the server, but not prevent the connection entirely; the SQL Server not being tested properly may cause errors or bugs in the functionality or security of the server, but not affect the connection unless there is a configuration problem.Reference:CompTIA DataSys+ Course Outline, Domain 2.0 Database Deployment, Objective 2.3 Given a scenario, troubleshoot common database deployment issues.

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