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| Certification Vendor: | CompTIA |
|---|---|
| Exam Name: | CompTIA Data+ Exam |
| Exam Number: | DA0-002 |
| Exam Price: | $255 USD |
| Exam Format: | Multiple-choice, Performance-based questions |
| Passing Score: | 720 (scale 100–900) |
| Real Exam Qty: | Up to 90 |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 90 minutes |
| Available Languages: | English |
| Recommended Training: | CompTIA Official Training |
| Exam Registration: | CompTIA Official Registration Pearson VUE Testing |
| Sample Questions: | CompTIA DA0-002 Sample Questions |
| Exam Way: | Online proctored or onsite at Pearson VUE test centers |
| Pre Condition: | Recommended 18–24 months of experience in data/business analysis role; familiarity with databases, analytical tools, basic statistics, and visualization |
| Official Syllabus URL: | https://www.comptia.org/certifications/data |
>> Exam Questions DA0-002 Vce <<
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NEW QUESTION # 188
The human resources department wants to know the number of employees who earn $125,000 or more. However, the department is concerned about duplicates in the data set. Given the following table:
Which of the following SQL statements resolves this issue?
Answer: A
Explanation:
Counting distinct employee IDs removes duplicates while still restricting the result to employees whose salary is at least $125,000, which returns the number of unique employees meeting the requirement.
NEW QUESTION # 189
A data analyst receives a notification that a customized report is taking too long to load. After reviewing the system, the analyst does not find technical or operational issues. Which of the following should the analyst try next?
Answer: A
Explanation:
This question pertains to theData Governancedomain, focusing on data quality and report performance optimization. The report is slow despite no technical issues, suggesting a data-related inefficiency.
* Check that the appropriate filters are applied (Option A): Applying filters reduces the dataset size by excluding irrelevant data, improving report performance. This is a logical next step after ruling out technical issues.
* Check data source connections (Option B): The analyst already reviewed the system and found no operational issues, so connectivity is likely not the problem.
* Check for data structure changes in the report (Option C): While possible, this is a deeper investigation step and less likely to be the immediate cause of slowness.
* Check whether other peers have the same issue (Option D): This might confirm the issue's scope but doesn't directly address the performance problem.
The DA0-002 Data Governance domain emphasizes "data quality control concepts," including optimizing report performance through techniques like filtering.
Reference: CompTIA Data+ DA0-002 Draft Exam Objectives, Domain 5.0 Data Governance.
NEW QUESTION # 190
Which of the following situations best describes an unclear and inconsistent column definition that can lead to an enabled analysis process?
Answer: A
Explanation:
An undefined field refers to unclear or inconsistent column definitions that can cause confusion and hinder effective data analysis.
NEW QUESTION # 191
A manager wants a report that contains the days off for each direct report. The manager needs this report to always be up-to-date with the latest data. Which of the following describes the refresh frequency that the manager is requesting?
Answer: A
Explanation:
This question pertains to theVisualization and Reportingdomain, focusing on report refresh frequencies. The manager needs the report to always be up-to-date, implying continuous data updates.
* Real-time (Option A): Real-time refresh frequency ensures the report reflects the latest data as soon as it changes, which matches the requirement to "always be up-to-date."
* Ad hoc (Option B): Ad hoc reports are generated on-demand, not continuously updated.
* Snapshot (Option C): A snapshot captures data at a specific point in time, not suitable for always being up-to-date.
* Dynamic (Option D): Dynamic reports allow interactivity, but the term doesn't specifically imply real- time updates.
The DA0-002 Visualization and Reporting domain includes "the appropriate visualization in the form of a report" with delivery methods, and real-time refresh frequency ensures the report is always current.
Reference: CompTIA Data+ DA0-002 Draft Exam Objectives, Domain 4.0 Visualization and Reporting.
NEW QUESTION # 192
Which of the following best represents a type of infrastructure that requires a company to purchase and maintain all of its own servers?
Answer: D
Explanation:
This question pertains to theData Concepts and Environmentsdomain, focusing on types of server infrastructure. The task is to identify an infrastructure where a company owns and maintainsall servers.
* Private (Option A): A private infrastructure (often on-premises) means the company owns and maintains its own servers, typically in a private data center, which matches the requirement.
* Cloud (Option B): Cloud infrastructure is managed by third-party providers, not owned by the company.
* Hybrid (Option C): Hybrid combines on-premises and cloud, so not all servers are owned by the company.
* Public (Option D): Public infrastructure is a cloud model shared across multiple organizations, not owned by the company.
The DA0-002 Data Concepts and Environments domain includes understanding "data environments," and a private infrastructure requires the company to purchase and maintain its own servers.
Reference: CompTIA Data+ DA0-002 Draft Exam Objectives, Domain 1.0 Data Concepts and Environments.
NEW QUESTION # 193
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