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Python Institute PCAD-31-02 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Data Visualization and Communication
Topic 2: Data Acquisition and Pre-Processing	29.2%
Topic 3: Exploratory Data Analysis
Topic 4: SQL and Data Management
Topic 5: Statistical Methods and Modeling

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Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions (Q72-Q77):

NEW QUESTION # 72
Which technique is considered a primary defense against SQL injection when executing database queries from Python?

A. Using parameterized queries
B. Escaping quotes manually in SQL strings
C. Encrypting the database connection
D. Closing the database cursor after each query

Answer: A

NEW QUESTION # 73
Which method in a Python class is responsible for initializing the object's attributes at the time of creation?

A. __init__()
B. __str__()
C. __main__()
D. __getattr__()

Answer: A

NEW QUESTION # 74
What is the primary difference between the == operator and the is operator in Python when used in a data pipeline?

A. == checks identity, while is compares memory addresses
B. is compares dictionary keys, while == compares keys and values
C. is checks value equality, while == checks for data type compatibility
D. == compares values for equality, while is checks for object identity

Answer: D

NEW QUESTION # 75
Which command should a data analyst use to install the pandas library in a Python environment using the Python Package Index?

A. install pip pandas
B. pip install pandas
C. python install pandas
D. python get pandas

Answer: B

NEW QUESTION # 76
Which statements correctly describe differences between linear and logistic regression?
(Choose two)

A. Linear regression requires target variables to be binary
B. Logistic regression outputs probabilities, while linear regression predicts continuous values
C. Linear regression applies only to classification tasks
D. Logistic regression uses the logit function to model relationships

Answer: B,D

NEW QUESTION # 77
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