Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) PCAD-31-02 Prüfungsfragen mit Lösungen:
1. Which chart types are commonly used to represent relationships between two numerical variables in Python-based visualizations?
(choose two)
Response:
A) Histogram
B) Heatmap
C) Line chart
D) Scatter plot
2. Which of the following best describes the use of relational databases in analytics?
A) Cannot enforce schema
B) Best for real-time log ingestion
C) Suitable for managing tabular structured data
D) Used only for image processing
3. Why is it important to use a test dataset separate from the training dataset when evaluating a machine learning model?
A) To evaluate the model's performance on unseen data
B) To optimize the model's training accuracy
C) To ensure the loss function is minimized
D) To reduce the number of iterations during training
4. Which of the following improves the readability of a spreadsheet used for collaborative data analysis?
A) Converting numeric values into images
B) Removing gridlines from all sheets
C) Adding freeze panes to lock header rows
D) Using colored fonts to highlight every cell
5. When creating a line chart with Matplotlib, which function is most appropriate to add a text label at a specific data point?
A) plt.legend()
B) plt.annotate()
C) plt.xlabel()
D) plt.title()
Fragen und Antworten:
| 1. Frage Antwort: B,D | 2. Frage Antwort: C | 3. Frage Antwort: A | 4. Frage Antwort: C | 5. Frage Antwort: B |
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