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30 interview questionsfor developers (2024)

Test your developer skills before an interview with 30 corrected questions on 80+ topics. Beginner, Intermediate or Expert level.

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30 questions
Easy
7 votes664 runs0 comment

What is the value of the decision threshold used with logistic regression in Scikit-learn?

Data Scientist
scikit-learn
threshold
logistic regression
Anonymous authorat Apr 6, 2022
Easy
3 votes613 runs0 comment

The choice of the centers of the initial clusters has no impact on the final result of the K-Means algorithm.

Data Scientist
scikit-learn
k-means
Anonymous authorat Apr 6, 2022
Easy
3 votes612 runs0 comment

Reshape a 2x4 array into a 2x2x2 array in scikit-learn

Data Scientist
scikit-learn
numpy
reshape
Anonymous authorat Jan 30, 2023
Easy
2 votes606 runs0 comment

How to create an MLP in Scikit-learn

Data Scientist
scikit-learn
classifiers
Anonymous authorat Apr 6, 2022
Medium
2 votes576 runs0 comment

Print the data type of a numpy array

Data Scientist
scikit-learn
numpy
array
Anonymous authorat Apr 6, 2022
Easy
2 votes576 runs0 comment

The Pandas library does not allow grouping of data as we can do with the Group By clause of the SQL language.

Data Scientist
scikit-learn
Anonymous authorat Apr 6, 2022
Easy
1 vote643 runs0 comment

Access the value located in the fifth row and the third column of df.

Data Scientist
scikit-learn
dataframe
indexing
Anonymous authorat Apr 6, 2022
Easy
1 vote597 runs0 comment

Read the contents of the file.csv file by block (or by packet) of five lines.

Data Scientist
scikit-learn
pandas
read_csv
Anonymous authorat Apr 6, 2022
Hard
1 vote589 runs0 comment

How to get the size of a numpy array in scikit-learn

Data Scientist
scikit-learn
numpy
array
Anonymous authorat Mar 2, 2023
Easy
1 vote587 runs
1 comment

Apply a function on the data of a column of a DataFrame type object from the pandas library.

Data Scientist
scikit-learn
pandas
dataframe
Anonymous authorat Apr 10, 2023
Medium
1 vote581 runs0 comment

What is the value of the n_support_ attribute of an instance of an SVM algorithm?

Data Scientist
scikit-learn
svm
Anonymous authorat Apr 6, 2022
Easy
1 vote581 runs0 comment

The fit method works the same when applied with an SVM as it does with any other Scikit-learn algorithm.

Data Scientist
scikit-learn
svm
Anonymous authorat Apr 6, 2022
Easy
1 vote223 runs1 comment

Create an instance of a logistic regression algorithm in Scikit-learn

Data Scientist
scikit-learn
logistic regression
Anonymous authorat Apr 6, 2022
Easy
1 vote204 runs0 comment

When to use the K-Means algorithm in scikit-learn?

Data Scientist
scikit-learn
clustering
Anonymous authorat Apr 6, 2022
Easy
0 vote658 runs0 comment

Compare the memory usage of a list and a numpy array in Python

Data Scientist
scikit-learn
numpy
list
Anonymous authorat Apr 6, 2022
Hard
0 vote641 runs0 comment

How to get the size of an array in scikit-learn

Data Scientist
scikit-learn
numpy
array
Anonymous authorat Apr 6, 2022
Easy
0 vote567 runs0 comment

Create a numpy array in scikit-learn

Data Scientist
scikit-learn
numpy
array
Anonymous authorat Apr 6, 2022
Easy
0 vote566 runs0 comment

Calculations on a numpy array are faster than on a Python list.

Data Scientist
scikit-learn
numpy
list
Anonymous authorat Apr 6, 2022
Easy
0 vote562 runs0 comment

What does the melt method of a DataFrame type object from the pandas library achieve?

Data Scientist
scikit-learn
pandas
dataframe
Anonymous authorat Apr 6, 2022
Easy
0 vote475 runs0 comment

How many clusters are obtained when we set the value of the parameter k of K-means to 3?

Data Scientist
scikit-learn
k-means
Anonymous authorat Apr 6, 2022