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[General] Exam Python Institute PCAD-31-02 Price - PCAD-31-02 Latest Guide Files

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【General】 Exam Python Institute PCAD-31-02 Price - PCAD-31-02 Latest Guide Files

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Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions (Q129-Q134):NEW QUESTION # 129
Which of the following techniques are commonly used in the standardization of textual or categorical data during preprocessing?
(Choose two)
  • A. Trimming whitespace from string values
  • B. Replacing misspellings with a canonical category label
  • C. Scaling numeric features to a fixed range
  • D. Applying logarithmic transformation to skewed data
Answer: A,B

NEW QUESTION # 130
When performing bootstrapping on a dataset with 500 observations, what is a typical procedure?
  • A. Scaling all values between 0 and 1 before resampling
  • B. Drawing one sample and calculating the mean only once
  • C. Creating samples by removing all duplicates
  • D. Generating multiple datasets of the same size by randomly sampling with replacement
Answer: D

NEW QUESTION # 131
Which characteristics are typically associated with supervised learning algorithms?
(Choose two)
  • A. They automatically detect outliers
  • B. They are useful for regression and classification tasks
  • C. They work only with numerical features
  • D. They require labeled training data
Answer: B,D

NEW QUESTION # 132
Which practices are considered part of professional Python scripting standards?
(Choose two)
  • A. Avoiding error handling to keep code clean
  • B. Avoiding use of modules and libraries
  • C. Using consistent indentation and naming conventions
  • D. Including in-line comments and docstrings
Answer: C,D

NEW QUESTION # 133
Which technique is considered a primary defense against SQL injection when executing database queries from Python?
  • A. Escaping quotes manually in SQL strings
  • B. Closing the database cursor after each query
  • C. Using parameterized queries
  • D. Encrypting the database connection
Answer: C

NEW QUESTION # 134
......
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