482 interview questions for Blockchain Expert (2024)

31 votes2263 runs0 comment

14 votes2234 runs0 comment

14 votes2179 runs1 comment

13 votes996 runs0 comment

machine learning

missing data

Martinat Apr 4, 2022

12 votes2243 runs0 comment

12 votes2223 runs0 comment

12 votes673 runs0 comment

machine learning

deep learning

Martinat Sep 19, 2022

11 votes432 runs0 comment

virtual machine

Maximeat Nov 7, 2022

10 votes2184 runs4 comments

10 votes2130 runs0 comment

9 votes989 runs1 comment

9 votes694 runs0 comment

Martinat Mar 14, 2022

8 votes897 runs0 comment

machine learning

missing data

Martinat Apr 4, 2022

8 votes782 runs0 comment

scikit-learn

logistic regression

8 votes485 runs0 comment

NLP (Natural language processing)

named entity recognition

7 votes2211 runs0 comment

7 votes735 runs0 comment

neural network

back propagation

6 votes2113 runs0 comment

6 votes2072 runs0 comment

6 votes969 runs0 comment

hyperparameters

Martinat Mar 15, 2022

482 interview questionsfor Blockchain Expert (2024)

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

482 interview questionsfor Blockchain Expert (2024)

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.

Select only distinct values in a column using SQL

Update a column in an SQL table

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

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

What does EVM stand for?

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'.

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.

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?

What does NER mean?

How to delete an SQL table?

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

Write a SQL query to calculate the total quantities sold for each product_id.

Write a SQL query to get the total order amount for each customer.

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.