Skill Assessment Test
Time Remaining:
05:00
What is the primary goal of Data Science?
Data storage
Data analysis
Data visualization
Data collection
Which Python library is commonly used for data manipulation?
NumPy
Keras
Matplotlib
Flask
What does SQL stand for?
Structured Query Language
Structured Question Language
Simple Query Language
Sequential Query Language
What is a “data frame” in Python?
A 2D array-like structure
A data storage system
A data visualization tool
A type of SQL query
Which technique is used for dimensionality reduction?
Principal Component Analysis
Decision Trees
Neural Networks
Clustering
What is the purpose of “feature scaling”?
To normalize data
To increase data size
To create new features
To reduce data complexity
Which visualization library is commonly used in Python?
Matplotlib
TensorFlow
Scikit-Learn
BeautifulSoup
What is “overfitting” in a machine learning model?
Model performs well on training data but poorly on test data
Model performs equally on training and test data
Model is too simple
Model is too complex but performs well on test data
What does “EDA” stand for?
Exploratory Data Analysis
External Data Application
Extended Data Access
Enhanced Data Analysis
Which method is used for handling missing data?
Imputation
Normalization
Scaling
Encoding
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