PCAD-31-02 Exam Practice & PCAD-31-02 Exam Collection

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Python Institute PCAD-31-02 Exam Syllabus Topics:

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

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Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions (Q143-Q148):

NEW QUESTION # 143
When working with relational databases in Python, what are key components required to establish and manage database connections?
(Choose all that apply)

A. Python's random module for generating keys
B. Cursor object for executing queries
C. Connection object to interface with the database
D. Database driver or module (e.g., sqlite3)

Answer: C,D

NEW QUESTION # 144
Which practices are typically part of the data integration process?
(Choose two)

A. Neural network training
B. Format standardization
C. Schema alignment
D. Data encryption

Answer: B,C

NEW QUESTION # 145
Which term best describes the process of combining customer data from multiple systems into a single unified dataset?

A. Data integration
B. Data binning
C. Data normalization
D. Data warehousing

Answer: A

NEW QUESTION # 146
How would you extract the last three rows of a DataFrame df using position-based indexing?

A. df.loc[-3:]
B. df.tail(3)
C. df.iloc[-3:]
D. df[-3]

Answer: C

NEW QUESTION # 147
In a scatter plot showing the relationship between advertising spend and sales revenue, the points form a tight upward-sloping pattern. What conclusion can be drawn?

A. The data shows no apparent relationship
B. There is a strong positive correlation
C. Advertising has no effect on sales
D. The correlation is weak and likely negative

Answer: B

NEW QUESTION # 148
......

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