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| Section | Weight | Objectives |
|---|---|---|
| Visualization | 20% | - Data storytelling and reporting tools - Chart and dashboard design principles - Visualization best practices |
| Data Governance, Quality, and Controls | 15% | - Data quality management - Data governance frameworks and policies - Compliance, privacy, and security controls |
| Data Mining | 25% | - Data processing and transformation - Data manipulation and cleaning techniques - Data collection and extraction methods |
| Data Analysis | 25% | - Data interpretation and reporting - Statistical methods and analysis techniques - Trend and pattern identification |
| Data Concepts and Environments | 15% | - Data types, structures, and file formats - Data lifecycle and data ecosystems - Data storage systems and platforms |
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NEW QUESTION # 19
A complex report is being created from a database. Within the database the storage location of the orders, packaging, and logistics details is unclear. The table's attributes names are abbreviated and not easily identifiable. Which of the following types of documentation would be most useful for reference lookup?
Answer: A
Explanation:
A data dictionary provides detailed descriptions of database tables, attributes, and their meanings, helping clarify unclear or abbreviated field names.
NEW QUESTION # 20
A data analyst is working on a three-year project to deliver sales reports on a monthly basis. The client wants a thorough analysis into customer profiles for a specific region and month. Which of the following delivery methods best fulfills this request?
Answer: B
Explanation:
An ad hoc delivery method is used when a stakeholder requests a detailed, specific analysis that is not part of the standard recurring reports. The request for a thorough analysis of customer profiles for a particular region and month is a targeted, one-time inquiry that is best fulfilled through an ad hoc report.
NEW QUESTION # 21
A data analyst deployed a report for public access. A user states that the report is not showing the latest information, even though the user updated the source an hour ago. Which of the following should the data analyst check first?
Answer: D
Explanation:
The first thing to verify is the database connection between the report and the data source. If the connection is not refreshing correctly or is pointing to outdated data, the report will not display recent updates even though the source data has changed.
NEW QUESTION # 22
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?
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 # 23
A data analyst receives the following sales data for a convenience store:
The analyst needs to provide information on the products that contain chocolate.
Which of the following RegEx should the analyst use to filter the chocolate products?
Answer: C
NEW QUESTION # 24
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