Python Institute PCED - Certified Entry-Level Data Analyst with Python PCED-30-02 Prüfungsfragen mit Lösungen:
1. Which task is traditionally or typically performed by a data analyst, and not by a data scientist or analytics specialist? Select the best answer.
A) Recommending pricing strategies using predictive modeling and A/B testing.
B) Designing a data pipeline to ingest and process real-time sensor data.
C) Creating summary tables and charts to describe patterns in historical data.
D) Developing machine learning algorithms to predict user behavior.
2. You are reading a data.csvfile line by line. To prepare each line for formatting with f-strings, you need to remove extra whitespace and split the values by commas.
Which line should you insert to correctly clean and parse the input?
A) fields = line.split().strip(', ')
B) fields = line.strip().split(', ')
C) fields = line.replace(', ', '|').split('|')
D) fields = line.split(', ').trim()
3. A list is reversed using slicing: lst[::-1]. The programmer wants to confirm whether this modifies the original list or creates a new one. What is the correct behavior?
A) Creates new list
B) Modifies original
C) Error
D) Returns None
4. You are reading a data.csvfile line by line. To prepare each line for formatting with f-strings, you need to remove extra whitespace and split the values by commas.
Which line should you insert to correctly clean and parse the input?
A) fields = line.split().strip(', ')
B) fields = line.strip().split(', ')
C) fields = line.replace(', ', '|').split('|')
D) fields = line.split(', ').trim()
5. A program uses while False: followed by print statements inside the loop. The developer expects output. What will actually happen during execution?
A) Infinite loop
B) No execution
C) Error
D) Prints once
Fragen und Antworten:
| 1. Frage Antwort: C | 2. Frage Antwort: B | 3. Frage Antwort: A | 4. Frage Antwort: B | 5. Frage Antwort: B |
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