[Data Acquisition and Preparation] Which of the following best describes the semi-structured data that is gathered when web scraping?
A.
JSON
B.
CSV
C.
CSS
D.
HTML
Correct Answer: D
Explanation:
Web scraping collects data directly from web pages, and those pages are originally written in HTML, which is considered semi-structured because it has a flexible tag-based format rather than a strict tabular structure. While scraped data is often later converted into formats like JSON, the actual source format being extracted from websites is HTML. CSV is structured data, CSS is for styling web pages, and JSON is a structured/semi-structured format but not the raw format typically gathered during scraping.
Question #7 (Topic: demo questions)
[Visualization and Reporting]
Which of the following is the best tool for creating a dynamic dashboard?
A.
Power BI
B.
RStudio
C.
Excel
D.
SAS
Correct Answer: A
Explanation:
Power BI is specifically designed for building interactive and dynamic dashboards with real-time data connections, visualizations, and easy sharing capabilities. It allows users to drill down into data, apply filters, and update visuals automatically as data changes. While Excel can create basic dashboards and RStudio or SAS are powerful for analysis and statistical work, Power BI is the most suitable and widely used tool for dynamic business dashboards.