Question 1

What does the term "event detection" refer to in the context of specialized applications in data science?

Options :

A : Preprocessing raw sensor data before analysis

B : Selecting the best hyperparameters for a neural network model

C : Evaluating the performance of a trained machine learning model

D : Identifying significant occurrences or anomalies in time-series data

Answer: D

Question 2

What principle emphasizes the importance of integrating data science workflows with development and operations processes to streamline deployment and maintenance?

Options :

A : MLOps

B : Data replication

C : DevOps

D : Continuous integration/continuous deployment

Answer: A

Question 3

Which of the following deployment environments involves hosting and running machine learning models on remote servers managed by third-party cloud service providers?

Options :

A : Edge deployment

B : Cloud deployment

C : Hybrid deployment

D : On-premises deployment

Answer: B

Question 4

Which exploratory data analysis (EDA) method is used to visualize the relationship between two continuous variables?

Options :

A : Scatter plot

B : Box and whisker plot

C : Histogram

D : Bar plot

Answer: A

Question 5

What is the purpose of k-fold cross-validation in machine learning?

Options :

A : To select the best hyperparameters for a model

B : To preprocess the input data before training the model

C : To evaluate the performance of a trained model

D : To assess the performance and generalization of a model by splitting the dataset into k subsets

Answer: D

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