ATD Quiz

ELEKS quiz

Complete the test with a score of 40-100% to receive a prize.

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1 / 7

What does the term “Medallion Architecture” mean?

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

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

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

Aligning data to business needs.

2 / 7

What is the best approach to read last committed data without locking in RDBMS?

Use “WITH (NO LOCK)” hint

Use “READ UNCOMMITED” isolation level

Use optimistic isolation type, in example “SNAPSHOT” isolation level

None of above

3 / 7

What are the differences between BERT and GPT LLM architectures?

Both BERT and GPT are full "encoder-decoder" models

BERT is an “encoder-only” model, while GPT is a “decoder-only” model

BERT is a type of Recurrent Neural Network, while GPT is a Transformer

BERT is a “decoder-only” model, while GPT is an “encoder-only” model

4 / 7

You are training a medical diagnostic classification model to detect a rare deadly disease. It is important to identify as many people who actually have the disease as possible, even if it means some healthy people are incorrectly flagged. Which evaluation metric should you focus on?

AUC

Precision

Recall

RMSE

5 / 7

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

Perceptron

ReLU

Kernel Trick

Activation Function

Backpropagation

6 / 7

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

Too many parameters of the model

Cut objects into pieces

Hard to train

Developed for sequential data and doesn’t fit for visual

7 / 7

What happens when this code runs?


import asyncio


async def work(name):
    print(f"{name} start")
    await asyncio.sleep(1)
    print(f"{name} end")


async def main():
    await work("A")
    await work("B")


asyncio.run(main())

It runs sequentially; total runtime ≈ 2 seconds

The output order is unpredictable

It raises a RuntimeError because asyncio.run() cannot be used with multiple awaits

It runs both tasks concurrently; total runtime ≈ 1 second

Your score is

The average score is 48%

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