Courseiva
Data EngineeringmediumMatchingObjective-mapped

MLS-C01 Data Engineering Practice Question

Match each data format to its typical use in AWS ML.

Drag a concept onto its matching description — or click a concept then click the description.

Concepts
Matches

Tabular data for SageMaker built-in algorithms

Efficient binary format for SageMaker

Columnar storage for analytics

Semi-structured data, e.g., for Lambda

TensorFlow training data format

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

CSV: Tabular data for built-in algorithms

Common data formats in AWS ML: CSV for tabular data, JSON for semi-structured inference I/O, Parquet for columnar analytics, and TFRecord for TensorFlow training. Distractors confuse CSV with Parquet and JSON with binary formats.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • CSV: Tabular data for built-in algorithms

    Why this is correct

    CSV (Comma-Separated Values) is a common format for tabular data, and AWS ML built-in algorithms like Linear Learner and XGBoost expect CSV input.

  • JSON: Semi-structured data for real-time inference

    Why this is correct

    JSON (JavaScript Object Notation) is used for semi-structured data, often in real-time inference requests to SageMaker endpoints.

  • Parquet: Columnar storage for analytics

    Why this is correct

    Parquet is a columnar storage format optimized for analytical queries, commonly used with AWS Athena and Redshift Spectrum.

  • TFRecord: TensorFlow training data

    Why this is correct

    TFRecord is a binary format used by TensorFlow for efficient data loading during training on SageMaker.

  • CSV: Columnar storage for analytics

    Why it's wrong here

    Incorrect — CSV is row-oriented, not columnar. Columnar storage is a characteristic of Parquet, not CSV.

  • JSON: Binary format for efficient I/O

    Why it's wrong here

    Incorrect — JSON is a text-based format, not binary. Binary formats like RecordIO or TFRecord are used for efficient I/O.

About these practice questions

This MLS-C01 question is part of Courseiva's 1,672-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →

How Courseiva writes practice questions · Editorial policy

JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This MLS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the MLS-C01 exam.