logo

Online Exam Quiz

questionQuestion  1 to 30

Exit Quiz

Which data visualization technique is suitable for showing the relationship between two continuous variables?

  • Scatter plot
  • Bar chart
  • Pie chart
  • Histogram
Mark for review

Which statistical measure is used to measure the central tendency of a dataset?

  • Standard deviation
  • Variance
  • Mean
  • Median
Mark for review

Which of the following is NOT a measure of data similarity?

  • Euclidean distance
  • Cosine similarity
  • Jaccard similarity
  • Pearson correlation coefficient
Mark for review

Which of the following is NOT a data type in Python?

  • Integer
  • String
  • Tuple
  • Array
Mark for review

What is the purpose of a dendrogram in hierarchical clustering?

  • To visualize data
  • To evaluate cluster quality
  • To store data efficiently
  • To represent the hierarchical relationship between clusters
Mark for review

Which of the following techniques is used for sentiment analysis?

  • K-means clustering
  • Linear regression
  • Naive Bayes classifier
  • Apriori algorithm
Mark for review

What is the purpose of data anonymization in data analytics?

  • To visualize data
  • To clean and preprocess data
  • To protect sensitive information
  • To evaluate a model's performance
Mark for review

What does the term "PCA" stand for in data analytics?

  • Principal Component Analysis
  • Predictive Classification Algorithm
  • Probabilistic Component Analysis
  • Precision-Corrected Approximation
Mark for review

What is the purpose of data normalization in data analytics?

  • To visualize data
  • To clean and preprocess data
  • To create new features from existing ones
  • To evaluate a model's performance
Mark for review

What is the purpose of data imputation in data analytics?

  • To visualize data
  • To clean and preprocess data
  • To perform feature engineering
  • To evaluate a model's performance
Mark for review

What does the acronym "EDA" stand for in data analytics?

  • Exploratory Data Analysis
  • Expected Data Assessment
  • Effective Data Analytics
  • Essential Data Aggregation
Mark for review

Which of the following is NOT a type of data outlier?

  • Global outlier
  • Contextual outlier
  • Collective outlier
  • Sequential outlier
Mark for review

Which statistical measure is used to measure the spread of a dataset?

  • Mean
  • Median
  • Standard deviation
  • Mode
Mark for review

Which of the following techniques is used for dimensionality reduction?

  • Linear regression
  • Decision tree
  • Singular Value Decomposition (SVD)
  • K-nearest neighbors
Mark for review

In data analytics, what does the term "API" stand for?

  • Analytical Processing Interface
  • Application Programming Interface
  • Advanced Programming Interface
  • Algorithmic Processing Interface
Mark for review

Which of the following is NOT a method for feature selection?

  • Lasso regression
  • Recursive feature elimination
  • Principal Component Analysis (PCA)
  • Ridge regression
Mark for review

Which of the following techniques is used for anomaly detection?

  • K-means clustering
  • Linear regression
  • Isolation Forest
  • Apriori algorithm
Mark for review

Which of the following is NOT a classification metric?

  • Accuracy
  • Mean Absolute Error
  • Precision
  • Recall
Mark for review

Which of the following is NOT a type of data analytics?

  • Descriptive analytics
  • Predictive analytics
  • Prescriptive analytics
  • Retrospective analytics
Mark for review

In data analytics, what does the term "RFM" stand for?

  • Recency, Frequency, Monetary
  • Regression, Forecasting, Modeling
  • Residuals, Factors, Measures
  • Random Forest Model
Mark for review

Which of the following techniques is used for text mining?

  • Linear regression
  • TF-IDF (Term Frequency-Inverse Document Frequency)
  • K-means clustering
  • Apriori algorithm
Mark for review

Which machine learning algorithm is used for classification problems?

  • Linear regression
  • K-means clustering
  • Decision tree
  • Apriori algorithm
Mark for review

What does the term "Hadoop" refer to in data analytics?

  • A programming language
  • A data visualization tool
  • A distributed computing framework
  • A machine learning algorithm
Mark for review

Which of the following is an example of unstructured data?

  • Spreadsheet
  • Database table
  • Text document
  • CSV file
Mark for review

In data analytics, what is the purpose of feature scaling?

  • To visualize data
  • To clean and preprocess data
  • To perform feature engineering
  • To evaluate a model's performance
Mark for review

What is the purpose of A/B testing in data analytics?

  • To compare different versions of a web page or application
  • To visualize data
  • To clean and preprocess data
  • To perform sentiment analysis
Mark for review

What is the purpose of data preprocessing in data analytics?

  • To visualize data
  • To clean and prepare data for analysis
  • To generate reports
  • To store data efficiently
Mark for review

What does the term "NLP" stand for in data analytics?

  • Natural Language Processing
  • Numeric Linear Programming
  • Network Layer Protocol
  • Normalized Loss Probability
Mark for review

Which of the following is NOT a type of data sampling technique?

  • Random sampling
  • Stratified sampling
  • Sequential sampling
  • Cluster sampling
Mark for review

Which of the following techniques is used for time series forecasting?

  • Linear regression
  • ARIMA (AutoRegressive Integrated Moving Average)
  • K-means clustering
  • Apriori algorithm
Mark for review

blinkerOnline

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • Answered
  • Not Answered
  • Marked for Review

Get a 1:1 Mentorship call with our Career Advisor

Book free session