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CompTIA DA0-002 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Data Mining25%- Data collection and extraction methods
- Data manipulation and cleaning techniques
- Data processing and transformation
Topic 2: Visualization20%- Visualization best practices
- Chart and dashboard design principles
- Data storytelling and reporting tools
Topic 3: Data Governance, Quality, and Controls15%- Data governance frameworks and policies
- Data quality management
- Compliance, privacy, and security controls
Topic 4: Data Concepts and Environments15%- Data lifecycle and data ecosystems
- Data storage systems and platforms
- Data types, structures, and file formats
Topic 5: Data Analysis25%- Trend and pattern identification
- Data interpretation and reporting
- Statistical methods and analysis techniques

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CompTIA Data+ Exam Sample Questions (Q166-Q171):

NEW QUESTION # 166
A senior manager needs a report that can be generated and accessed at any time. Which of the following delivery methods should a data analyst use?

Answer: A


NEW QUESTION # 167
The following SQL code returns an error in the program console:
SELECT firstName, lastName, SUM(income)
FROM companyRoster
SORT BY lastName, income
Which of the following changes allows this SQL code to run?

Answer: A

Explanation:
The error occurs because SORT BY is not valid SQL syntax. To sort query results, SQL uses the ORDER BY clause. Replacing SORT BY with ORDER BY allows the statement to execute correctly and return the results ordered by the specified columns.


NEW QUESTION # 168
A data engineer needs to add a process that will run after an employee table is loaded. The engineer does not know the name of the process that loads employee data. Which of the following is the best document for the engineer to review to find this information?

Answer: B

Explanation:
A data lineage report documents the movement and transformation of data throughout systems and processes. It shows where data originates, how it is processed, and the dependencies between processes. Reviewing the data lineage report would help the engineer identify the process responsible for loading the employee table and determine where to add the subsequent process.


NEW QUESTION # 169
A data analyst receives an email from the IT department about renewing the company password, and the analyst follows the password reset link as required. Later in the week, the analyst receives the following notification when running a recurring analysis that connects to the database:
Log-in failed for user '<username>'
Which of the following is most likely the reason for this issue?

Answer: A

Explanation:
The recurring analysis likely uses stored database credentials. After the analyst changed the company password, the password saved in the report, scheduled job, or database connection was no longer valid. As a result, the automated process failed authentication and returned the log-in error.


NEW QUESTION # 170
Which of the following is a NoSQL database?

Answer: B


NEW QUESTION # 171
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