482 interview questions for Blockchain Expert (2025)

33 votes2472 runs0 comment

16 votes1109 runs0 comment

machine learning

missing data

Martinat Apr 4, 2022

15 votes2438 runs0 comment

15 votes2378 runs1 comment

13 votes465 runs0 comment

virtual machine

Maximeat Nov 7, 2022

12 votes2451 runs0 comment

12 votes2424 runs0 comment

12 votes726 runs0 comment

Martinat Mar 14, 2022

12 votes705 runs0 comment

machine learning

deep learning

Martinat Sep 19, 2022

10 votes2386 runs4 comments

10 votes2320 runs0 comment

9 votes1086 runs1 comment

9 votes1079 runs0 comment

hyperparameters

Martinat Mar 15, 2022

9 votes1000 runs0 comment

machine learning

missing data

Martinat Apr 4, 2022

9 votes829 runs0 comment

scikit-learn

logistic regression

8 votes2406 runs0 comment

8 votes523 runs0 comment

NLP (Natural language processing)

named entity recognition

7 votes794 runs0 comment

neural network

back propagation

7 votes713 runs0 comment

neural network

Martinat Apr 4, 2022

6 votes2384 runs5 comments

482 interview questionsfor Blockchain Expert (2025)

Test your technical skills before an interview of Blockchain Expert with 482 corrected questions. Beginner, Intermediate or Expert level.

482 interview questionsfor Blockchain Expert (2025)

Test your technical skills before an interview of Blockchain Expert with 482 corrected questions. Beginner, Intermediate or Expert level.

Write a SQL query to retrieve the list of employees with a salary greater than 5100.

How to handle missing data in a given training data set ?

Select only distinct values in a column using SQL

Update a column in an SQL table

What does EVM stand for?

Write a SQL query to insert data into a table

Which SQL keyword is used to sort the result of a SELECT statement?

What is the missing word in the following sentence: Overfitting is the production of a model that corresponds too closely to the training data set and may therefore fail to fit other data sets and so fail to perform any reliable forecast.

What is the relation between Artificial intelligence (AI), machine learning and deep learning?

Write the SQL query to delete a column from a table

Write a SQL query to retrieve the products with a price less than 1000 and sort the results in descending order of price.

Write a SQL query to retrieve the titles of books written by 'John Smith'.

The validation set is used to provide frequent and unbiased evaluations of the model’s fit on the training set while tuning its hyperparameters/parameters: in other words,the model is found and then tested on the validation set before to be improved once again.

How to handle missing data in a given training data set ?

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

How to delete an SQL table?

What does NER mean?

How is the error calculated during back propagation in a neural network?

Given a neural network with 4 inputs, how many connections could exist between the input layer and the first hidden layer?

Write a SQL query to retrieve the names of students enrolled in the course with ID 1.