Learn with Python Institute : PCED-30-02 training material for 100% pass
Updated: Jun 17, 2026
No. of Questions: 52 Questions & Answers with Testing Engine
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Python Institute PCED - Certified Entry-Level Data Analyst with Python Sample Questions:
1. An e-commerce site records every product view and purchase.
Which of the following best describes how these logs become marketing insights?
A) Raw event logs are stored, archived, and indexed - like by user ID and session - which then facilitate audit trails.
B) Raw event logs are validated, organized, and compiled into datasets - like timestamped user actions - which then support system debugging.
C) Raw event logs are structured, analyzed, and interpreted into information - like conversion rates by product - which then builds knowledge of customer preferences.
D) Raw event logs are filtered, aggregated, and formatted into summaries - like total visits per category - which then provide traffic reports.
2. You are analyzing survey results from students about their favorite colors. The list colorsstores individual responses:
You want to:
- find the number of unique colors mentioned using NumPy, and
- determine how often each color was chosen using Counter.
Which code snippet correctly performs both tasks? Select the best answer.
from numpy import unique
A) from collections import Counter
unique_colors = Counter(colors)
color_counts = sum(np.unique(colors))
import numpy as np
B) from collections import Counter
unique_colors = len(set(colors))
color_counts = np.unique(colors)
C) from collections import Counter
unique_colors = np.unique(colors)
color_counts = Counter(set(colors))
import numpy as np
D) from collections import Counter
unique_colors = len(unique(colors))
color_counts = Counter(colors)
import numpy as np
3. What will be the output of the following code?
A) 10 10
B) 5 5
C) 5 10
D) 10 5
4. A data analyst exports a cleaned dataset from Python and wants to share it with a colleague for easy use in Excel.
Which file format is best suited for this purpose? Select the best answer.
A) CSV, because it stores tabular data in plain text and is compatible with spreadsheet applications.
B) SQL, because it directly converts tabular data into database tables that Excel can open.
C) XML, because it automatically preserves spreadsheet formatting and charts.
D) JSON, because it stores hierarchical data and is designed for visual presentation in Excel.
5. A Python loop uses range(5, 0, -2) to iterate backward. The programmer expects a decreasing sequence. Which values will actually be generated when this loop runs?
A) 4, 2, 0
B) 5, 3
C) 5, 4, 3, 2, 1
D) 5, 3, 1
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: D | Question # 3 Answer: B | Question # 4 Answer: A | Question # 5 Answer: D |
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