ATD Quiz

ELEKS quiz

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1 / 7

What does the term “Medallion Architecture” mean?

Aligning data to business needs.

It’s a storage optimization technique that uses three folders: Bronze, Silver, Gold to separate hot, warm and cold data.

It's a configuration pattern that assigns Bronze, Silver or Gold compute tiers based on performance.

Data design pattern used in lakehouses to organize data into layers of refinement (Bronze, Silver, Gold).

2 / 7

What is faster in a transactional database:

DELETE FROM dbo.employees;

TRUNCATE TABLE dbo.employees;

3 / 7

Why Vision Transformers (ViT) often fail in object detection and segmentation tasks?

Developed for sequential data and doesn’t fit for visual

Cut objects into pieces

Hard to train

Too many parameters of the model

4 / 7

What operation should you perform on every value of a numerical variable to make its average exactly equal to zero, while preserving its variance?

Apply “min-max” scaling

Subtract the mean from each value

Divide each value by the standard deviation

Subtract the median from each value

5 / 7

Which of the following issues is the regularization aimed to solve?

Cross-validation

High bias

Overfitting

Underfitting

6 / 7

Which one term is NOT related to the Artificial Neural Networks:

Activation Function

Perceptron

ReLU

Kernel Trick

Backpropagation

7 / 7

Which of the following are regularization methods?

Boosting

Early-Stopping

Grid Search

Batching

Data Augmentation

Elastic Net

DropOut

All of the above

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