[Sep-2026] Pass DA0-002 Exam in First Attempt Updated DA0-002 Exam Questions
CompTIA Data+ Dumps DA0-002 Exam for Full Questions - Exam Study Guide
CompTIA DA0-002 Exam Syllabus Topics:
| Topic | Details |
|---|---|
| Topic 1 |
|
| Topic 2 |
|
| Topic 3 |
|
| Topic 4 |
|
NEW QUESTION # 90
A recent server migration applied an update to dataset naming conventions. Multiple users are now reporting stale information in an existing dashboard. The date in the dataset confirms a successful data refresh. Which of the following should a data analyst do first?
- A. Filter the data in the dashboard.
- B. Verify that the dashboard subscription is not expired.
- C. Escalate user permissions on the server.
- D. Confirm the dashboard is pointed to the newest dataset.
Answer: D
Explanation:
This question falls under theData Governancedomain, focusing on troubleshooting data freshness issues in dashboards. The dashboard shows stale data despite a successful refresh, and the server migration updated naming conventions, suggesting a potential mismatch.
* Confirm the dashboard is pointed to the newest dataset (Option A): The server migration updated dataset naming conventions, so the dashboard might still be pointing to an old dataset name, causing stale data. Confirming the dataset connection is the first step.
* Filter the data in the dashboard (Option B): Filtering might adjust the view but doesn't address the root cause of stale data.
* Escalate user permissions on the server (Option C): Permissions issues would likely prevent access, not cause stale data, especially since the dataset refreshed successfully.
* Verify that the dashboard subscription is not expired (Option D): An expired subscription might prevent access, but the dashboard is accessible, just showing stale data.
The DA0-002 Data Governance domain includes "data quality control concepts," such as ensuring dashboards connect to the correct, updated datasets after changes like server migrations.
Reference: CompTIA Data+ DA0-002 Draft Exam Objectives, Domain 5.0 Data Governance.
NEW QUESTION # 91
Which of the following supports capabilities such as automatic versioning, corruption checks, KPIs, and user authentication?
- A. Pipeline
- B. Notebook
- C. Source control
- D. REST API
Answer: C
NEW QUESTION # 92
A company gives users adequate data access permissions to allow them to fulfill their duties but nothing more. Which of the following concepts best describes this practice?
- A. Hierarchical access
- B. Active Directory
- C. Least privilege
- D. Zero Trust
Answer: C
Explanation:
The principle of least privilege grants users only the minimum access rights necessary to perform their job responsibilities. This reduces security risks by limiting access to data and systems that are not required for their duties.
NEW QUESTION # 93
Which of the following best describes an assessment a data analyst would use to validate that the number of records in a dataset matches the expected results?
- A. Health check
- B. Stress test
- C. Unit test
- D. Source control
Answer: C
Explanation:
This question pertains to theData Governancedomain, focusing on data quality validation techniques. The task is to validate that the number of records matches expectations, which requires a specific type of assessment.
* Source control (Option A): Source control (e.g., Git) manages code versions, not dataset validation.
* Unit test (Option B): A unit test checks a specific component of a process, such as verifying that the number of records in a dataset matches the expected count, making it the best fit.
* Stress test (Option C): Stress tests evaluate system performance under load, not record counts.
* Health check (Option D): A health check monitors system status but isn't specific to validating record counts.
The DA0-002 Data Governance domain includes "data quality control concepts," and unit tests are a standard method for validating specific data outcomes like record counts.
Reference: CompTIA Data+ DA0-002 Draft Exam Objectives, Domain 5.0 Data Governance.
NEW QUESTION # 94
A data analyst needs to get an accurate idea of how data components are automated. Which of the following types of documentation should the analyst review first?
- A. Data flow diagram
- B. Data lineage
- C. Data explainability report
- D. Data dictionary
Answer: A
NEW QUESTION # 95
A data analyst receives four files that need to be unified into a single spreadsheet for further analysis. All of the files have the same structure, number of columns, and field names, but each file contains different values.
Which of the following methods will help the analyst convert the files into a single spreadsheet?
- A. Appending
- B. Parsing
- C. Clustering
- D. Merging
Answer: A
Explanation:
This question is part of theData Acquisition and Preparationdomain, which involves combining data from multiple sources. The files have the same structure but different values, meaning theyneed to be stacked vertically into one dataset.
* Merging (Option A): Merging typically involves joining datasets on a common key (e.g., a customer ID), which isn't indicated here since the files only differ in values, not keys.
* Appending (Option B): Appending stacks datasets vertically, combining rows from files with the same structure into a single dataset, which matches the scenario.
* Parsing (Option C): Parsing involves breaking down data (e.g., splitting text), not combining files.
* Clustering (Option D): Clustering is a machine learning technique for grouping similar data points, not for combining files.
The DA0-002 Data Acquisition and Preparation domain includes "executing data manipulation," such as appending datasets with identical structures.
Reference: CompTIA Data+ DA0-002 Draft Exam Objectives, Domain 2.0 Data Acquisition and Preparation.
NEW QUESTION # 96
Which of the following file types separates data using a delimiter?
- A. HTML
- B. XML
- C. CSV
- D. JSON
Answer: C
Explanation:
This question falls under theData Concepts and Environmentsdomain, focusing on understanding file formats and their structures. The task is to identify a file type that uses delimiters to separate data.
* XML (Option A): XML uses tags to structure data, not delimiters.
* HTML (Option B): HTML is a markup language for web pages, not a data file format using delimiters.
* JSON (Option C): JSON uses key-value pairs and nested structures, not delimiters like commas.
* CSV (Option D): CSV (Comma-Separated Values) uses delimiters (typically commas) to separate data fields, making it the correct choice.
The DA0-002 Data Concepts and Environments domain includes understanding "data schemas and dimensions," such as file formats like CSV that use delimiters.
Reference: CompTIA Data+ DA0-002 Draft Exam Objectives, Domain 1.0 Data Concepts and Environments.
NEW QUESTION # 97
A data analyst is cleaning up a data set that contains images. The analysts wants to keep everything that was produced within the last 12 months. Which of the following best describes where the analyst should check for the date of creation on these products?
- A. The data set creation date on the database
- B. The metadata of each item in the data set
- C. The data dictionary of the data set
- D. The folder creation date on the filesystem
Answer: B
Explanation:
Metadata contains descriptive information about each file or image, including attributes such as creation date, modification date, file size, and format. To determine which images were produced within the last 12 months, the analyst should examine the metadata of each item rather than the creation date of the dataset or folder containing the files.
NEW QUESTION # 98
A data analyst is modeling a new data warehouse to analyze sales. One of the requirements is to analyze sales by region. Which of the following best describes the region table?
- A. Dimensional
- B. Fact
- C. Snowflake
- D. Bridge
Answer: A
Explanation:
A region table provides descriptive attributes used to categorize and analyze facts such as sales, which makes it a dimension table in a data warehouse schema.
NEW QUESTION # 99
An analyst compiled data on the preferred color of various models of cars over a period of time.
Which of the following visualizations is best way to present this information?
- A. Line graph
- B. Stacked chart
- C. Bubble chart
- D. Heat map
Answer: B
Explanation:
A stacked chart effectively displays the distribution of categories (car colors) across different models over time, showing proportions and comparisons.
NEW QUESTION # 100
A data analyst needs to get an accurate idea of how data components are automated. Which of the following types of documentation should the analyst review first?
- A. Data flow diagram
- B. Data lineage
- C. Data explainability report
- D. Data dictionary
Answer: A
Explanation:
This question pertains to the Data Concepts and Environments domain, focusing on documentation for understanding data processes. The analyst needs to understand automation of data components, which involves data movement and processes.
* Data flow diagram (Option A): A data flow diagram (DFD) visualizes how data moves through systems, including automated processes, making it the best starting point.
* Data explainability report (Option B): This is related to AI/ML model transparency, not data automation.
* Data dictionary (Option C): A data dictionary defines data elements, not how they're automated.
* Data lineage (Option D): Data lineage tracks data origin and transformations but doesn't focus on automation processes.
The DA0-002 Data Concepts and Environments domain includes understanding "data schemas and dimensions," and a data flow diagram is key for visualizing automation.
Reference: CompTIA Data+ DA0-002 Draft Exam Objectives, Domain 1.0 Data Concepts and Environments.
NEW QUESTION # 101
Which of the following is the best reason for a company to use a CSV file to share data instead of an Excel file?
- A. CSV files are easier to change in text editors.
- B. CSV files can store different types of encoding.
- C. CSV files are smaller in size.
- D. CSV files are not vendor-specific.
Answer: D
Explanation:
This question pertains to theData Concepts and Environmentsdomain, focusing on file formats for data sharing. The task is to identify the best reason to choose CSV over Excel for sharing data.
* CSV files can store different types of encoding (Option A): While CSV files can use different encodings, this isn't the primary reason to choose them over Excel.
* CSV files are not vendor-specific (Option B): CSV is a plain-text format that can be opened by any software, unlike Excel files, which are tied to Microsoft Excel, making CSV more interoperable and the best reason for sharing.
* CSV files are smaller in size (Option C): CSV files are often smaller due to their simplicity, but this isn't always the primary reason for sharing.
* CSV files are easier to change in text editors (Option D): While true, this isn't the most compelling reason for sharing data across systems.
The DA0-002 Data Concepts and Environments domain includes understanding "data schemas and dimensions," and CSV's vendor-neutral nature makes it ideal for sharing data.
Reference: CompTIA Data+ DA0-002 Draft Exam Objectives, Domain 1.0 Data Concepts andEnvironments.
NEW QUESTION # 102
A Chief Executive Officer requests a report that must:
- Summarize the company metrics in a simple way.
- Be clear and concise.
- Be easily understood by all company levels.
- Be accessible and updated without manual intervention.
Which of the following communication approaches best meets these requirements?
- A. Executive summary
- B. Open data portal
- C. Key performance indicator dashboard
- D. Slide presentation
Answer: C
Explanation:
A key performance indicator dashboard provides a clear, concise, and easily understandable view of important business metrics. It can be updated automatically from data sources, allowing executives and employees at all levels to access current information without manual intervention.
NEW QUESTION # 103
A financial firm gives an analyst a set of requirements for a sales dashboard. The analyst creates a product using sample data and other components to show the firm how the product will most likely look. Which of the following best explains the analyst's approach?
- A. Creating an accessibility product to ensure the firm can access the sales dashboard
- B. Designing a mock-up to gather feedback and ensure requirements are understood
- C. Ensuring that all of the colors and graphics align with the firm's requirements
- D. Developing a sample dashboard to show the level of detail required for the product
Answer: B
Explanation:
Creating a mock-up with sample data allows stakeholders to review the proposed design, provide feedback, and confirm that requirements are correctly understood before full development.
NEW QUESTION # 104
A database administrator needs to implement security triggers for an organization's user information database. Which of the following data classifications is the administrator most likely using? (Select two).
- A. Encrypted
- B. Sensitive
- C. Private
- D. Non-Sensitive
- E. Open
- F. Public
Answer: B,C
NEW QUESTION # 105
......
Authentic Best resources for DA0-002 Online Practice Exam: https://quizguide.actualcollection.com/DA0-002-exam-questions.html