Quiz :Exploring Data Transformation with Google Cloud (Google Cloud Digital Leader Training Professional Certificate) Answers 2025
1. Machine learning and real-time personalization
✔️ Through machine learning, with every click that the user makes, their website experience becomes increasingly personalized.
❌ All users see the same recommendations
❌ ML cannot make personalized suggestions
❌ Analyze credit card transactions (irrelevant)
Explanation:
ML models learn user behavior and adapt recommendations in real time → personalization.
2. Highly organized and well-defined data
❌ Hybrid data
❌ Unstructured
❌ Semi-structured
✔️ Structured data
Explanation:
Structured data lives in tables with rows/columns. It is highly organized and easily searchable.
3. Use case showing the power of unstructured data
❌ Historical sales → structured
❌ Weather visualizations → mostly structured
❌ GPS ridesharing → semi-structured
✔️ Analyzing social media posts to identify sentiment
Explanation:
Social media text, images, comments = unstructured data → ML/NLP can extract sentiment.
4. Database stored in tables, rows, columns
❌ Object DB
✔️ Relational database
❌ Non-relational
❌ XML DB
Explanation:
Table-based storage is the hallmark of relational databases (SQL).
5. Repository for raw data of any type/volume
❌ Data archive
✔️ Data lake
❌ Data warehouse
❌ Database
Explanation:
A data lake stores raw structured + semi-structured + unstructured data.
6. Google Cloud’s serverless data warehouse
❌ Vertex AI
❌ Compute Engine
✔️ BigQuery
❌ Cloud Storage
Explanation:
BigQuery = Google Cloud’s fully managed, serverless, scalable data warehouse.
7. Data from your own customer interactions
❌ Third-party
❌ Second-party
✔️ First-party data
Explanation:
First-party = data collected directly by the business from its own users.
8. Free-to-use weather datasets
❌ Cloud console
❌ Google Play
❌ App Engine
✔️ Google Cloud Marketplace
Explanation:
Marketplace provides public datasets, including weather, census, economic data.
9. Stage where raw data becomes ready for insights
❌ Data analysis
✔️ Data processing
❌ Data genesis
❌ Data storage
Explanation:
Processing cleans, transforms, and prepares data for analysis.
10. What is data governance?
✔️ Setting internal data policies + ensuring compliance with external standards
❌ Collecting/storing
❌ Deleting data
❌ Analyzing data
Explanation:
Data governance = policies, security, compliance, and responsibility management.
🧾 Summary Table
| Q# | Correct Answer | Key Concept |
|---|---|---|
| 1 | Personalized ML suggestions | ML personalization |
| 2 | Structured data | Highly organized data |
| 3 | Social media sentiment | Unstructured data usage |
| 4 | Relational DB | Tables, rows, columns |
| 5 | Data lake | Raw, large-volume data |
| 6 | BigQuery | Serverless warehouse |
| 7 | First-party data | Customer-collected data |
| 8 | Cloud Marketplace | Free public datasets |
| 9 | Data processing | Transform raw → usable |
| 10 | Data governance | Policies + compliance |