Data Science Multiple Choice Questions

Q1.Which of the following is not a commonly used data visualization tool in data science?

Matplotlib

Seaborn

Tableau

Apache Spark

Q2.Which of the following is not a commonly used data visualization library in data science?

NumPy

Bokeh

ggplot2

D3.js

Q3.Which of the following is not a step in the data science process?

Data analysis

Data visualization

Data collection

Data cleaning

Q4.Which of the following is not a common data format used in data science?

CSV

JSON

MP3

XML

Q5.Which of the following is not a commonly used data governance practice in data science?

Data quality management

Data lineage and traceability

Data visualization

Data security and privacy

Q6.Which of the following is not a type of supervised learning used in data science?

Logistic regression

K-means clustering

Linear regression

Decision tree

Q7.Which of the following is a common method for dealing with missing data in data science?

Ignoring missing data

All of the above

Removing rows with missing data

Replacing missing data with the mean or median

Q8.Which of the following is not a measure of variability used in data science?

Variance

Mean

Standard deviation

Interquartile range

Q9.Which of the following is not a commonly used data storage technology in data science?

Relational databases

Java virtual machines (JVMs)

NoSQL databases

Hadoop distributed file system (HDFS)

Q10.Which of the following is not a commonly used database management system (DBMS) for data science?

Microsoft Word

MySQL

PostgreSQL

Oracle

Q11.Which of the following is not a commonly used data analysis metric in data science?

Recall

Accuracy

Standard deviation

Precision

Q12.Which of the following is not a commonly used data pre-processing technique in data science?

Feature scaling

Principal component analysis (PCA)

One-hot encoding

Data normalization

Q13.Which of the following is not a commonly used tool for big data processing in data science?

Apache Kafka

Hadoop MapReduce

Microsoft Excel

Apache Spark

Q14.Which of the following is not a commonly used data science task?

Copying and pasting data

Regression

Clustering

Classification

Q15.Which of the following is not a commonly used algorithm for anomaly detection in data science?

Isolation Forest

K-means clustering

Autoencoder

Local Outlier Factor (LOF)

Q16.Which of the following is not a commonly used data visualization type in data science?

Decision tree

Histogram

Scatter plot

Line chart

Q17.Which of the following is not a commonly used machine learning algorithm in data science?

Gradient descent

Linear regression

K-means clustering

Decision tree

Q18.Which of the following is not a type of data used in data science?

Qualitative data

Spatial data

Audio data

Quantitative data

Q19.Which of the following is not a commonly used data science role?

Data scientist

Data analyst

Data engineer

Social media influencer

Q20.Which of the following is not a type of unsupervised learning used in data science?

Principal component analysis (PCA)

Linear regression

K-means clustering

Hierarchical clustering

Q21.Which of the following is not a measure of central tendency used in data science?

Mean

Mode

Range

Median

Q22.Which of the following is not a type of data visualization used in data science?

Regression analysis

Bar chart

Histogram

Scatter plot

Q23.Which of the following is not a commonly used natural language processing (NLP) technique in data science?

Tokenization

Named entity recognition (NER)

Sentiment analysis

Dimensionality reduction

Q24.Which of the following is not a commonly used data integration technique in data science?

Linear regression

Data federation

ETL (Extract, Transform, Load)

ELT (Extract, Load, Transform)

Q25.Which of the following is not a commonly used data mining technique in data science?

Convolutional neural networks (CNN)

Association rule mining

Regression

Clustering

Q26.Which of the following is not a commonly used cloud platform for data science?

Microsoft Azure

Amazon Web Services (AWS)

Google Cloud Platform (GCP)

Apache Hadoop

Q27.Which of the following is not a type of statistical test used in data science?

T-test

ANOVA

Chi-squared test

Decision tree

Q28.Which of the following is not a commonly used data analysis library in data science?

Pandas

TensorFlow

BeautifulSoup

Scikit-learn

Q29.Which of the following is not a commonly used programming language in data science?

R

Java

SQL

Python

Q30.Which of the following is not a type of deep learning used in data science?

Support vector machines (SVM)

Recurrent neural networks (RNN)

Long short-term memory (LSTM) networks

Convolutional neural networks (CNN)

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