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CompTIA · Free, ad-free audio course

CompTIA Data+

A structured, audio-first learning route for CompTIA Data+, designed for focused review and practical understanding.

Listen to the complete course Browse 62 lessons

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Companion Books

Study with the audio course, then reinforce it in print.

The study guide helps you organize and revisit the material. The flashcards book adds active recall and rapid review across the course objectives.

PUT IT INTO PRACTICE

Practice CompTIA Data+ concepts

Try 50 original BMC questions, review every explanation, and return to the lessons behind the answer. No login is required. Earn Challenge achievements and share your progress as you go.

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Independent BMC learning practice—not official exam items, a full mock exam, or an exam-readiness score.

Certification practice in the BMC Cyber Challenge

Complete Lesson Directory

Choose the exact subject you want to study.

Search by topic or narrow the directory by exam domain. Courses with multiple editions are organized below so every season remains easy to find. Each lesson includes its own audio player, full description, transcript when available, and previous-or-next navigation.

62 lessons available

S01E01Transcript

Getting Started

Start Smart: How the CompTIA Data+ DA0-002 Exam Really Works

This episode establishes the practical shape of the CompTIA Data+ DA0-002 exam so you can study with intent instead of guessing what “counts.” You’ll connect the exam’s domain areas to real data work, including data concepts and environments, acquisition and preparation, analysis, visualization and reporting, and governance and quality.…

Transcript availableDecember 17, 2025
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S01E03Transcript

Getting Started

Audio-Only Study Plan: Spaced Repetition Roadmap for Data+ Success

This episode builds a complete audio-only study system for Data+ DA0-002 that fits into busy schedules and still creates durable recall. You’ll define spaced repetition in plain terms, then apply it to Data+ content by turning topics into short prompts you can answer aloud.…

Transcript availableDecember 17, 2025
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S01E06Transcript

Domain 1 · Data Concepts and Environments

1.1 Decode Common File Extensions: CSV, XLSX, JSON, TXT, JPG, DAT

This episode helps you recognize what a file extension implies about data structure, parsing effort, and analysis risk, which is a frequent decision point in Data+ DA0-002 scenarios.…

Transcript availableDecember 17, 2025
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S01E11Transcript

Domain 1 · Data Concepts and Environments

1.2 Compare Repositories: Data Lakes, Lakehouses, Marts, Warehouses, Silos

This episode clarifies the repository options that show up repeatedly in Data+ DA0-002 scenarios, especially when a prompt asks where data should live and how it should be organized for analysis and reporting.…

Transcript availableDecember 17, 2025
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S01E14Transcript

Domain 1 · Data Concepts and Environments

1.5 Explain AI Concepts: Generative AI, LLM, NLP, Deep Learning, RPA

This episode builds exam-ready clarity around common AI terms that appear in modern data conversations and can show up in Data+ DA0-002 prompts as context or as part of a tool selection discussion.…

Transcript availableDecember 17, 2025
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S01E15Transcript

Domain 1 · Data Concepts and Environments

Spaced Review: Data Concepts and Environments Rapid Recall Workout

This episode is a structured review session that reinforces the foundational concepts from the early portion of the Data+ DA0-002 blueprint, with an emphasis on fast, accurate recall under time pressure.…

Transcript availableDecember 17, 2025
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S01E21Transcript

Domain 2 · Data Acquisition and Preparation

2.1 ETL vs ELT and Data Collection: Surveys, Sampling, and Pipelines

This episode explains the difference between ETL and ELT and why the distinction matters on the Data+ DA0-002 exam when a question describes where transformations occur and what constraints drive the choice.…

Transcript availableDecember 17, 2025
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S01E24Transcript

Domain 2 · Data Acquisition and Preparation

2.3 Clean Text and Strings: RegEx, Parsing, Conversion, Standardization

This episode teaches text and string cleaning as a disciplined preparation step, emphasizing the kinds of decisions DA0-002 questions present when messy fields prevent accurate grouping, matching, and reporting.…

Transcript availableDecember 17, 2025
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S01E25Transcript

Domain 2 · Data Acquisition and Preparation

2.3 Reshape Data Safely: Merging, Appending, Exploding, Deleting, Augmenting

This episode covers reshaping data as changing structure without changing meaning, which is a central preparation skill tested on DA0-002 when a prompt describes combining tables, converting nested content, or reorganizing a dataset for analysis.…

Transcript availableDecember 17, 2025
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S01E37Transcript

Domain 3 · Data Analysis

3.3 Resolve SQL and User-Reported Issues: Logging, Source Validation, Communities

This episode builds a practical method for resolving SQL problems and user-reported issues in the way DA0-002 scenarios commonly present them: a mismatch between expected and actual results, a sudden report change, or an error that appears after an update.…

Transcript availableDecember 17, 2025
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S01E39Transcript

Domain 4 · Visualization and Reporting

4.1 Choose Visual Types: Charts, Maps, Pivot Tables, and Infographics

This episode covers how to choose visual types that accurately represent data and support decision-making, a common DA0-002 scenario pattern where the question asks which chart or artifact best communicates a message.…

Transcript availableDecember 17, 2025
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S01E40Transcript

Domain 4 · Visualization and Reporting

4.1 Design for Clarity: Labels, Legends, Branding, and Color Schemes

This episode focuses on design choices that improve clarity and reduce misinterpretation, which DA0-002 tests when prompts ask how to present results so an audience can understand them quickly and correctly.…

Transcript availableDecember 17, 2025
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S01E41Transcript

Domain 4 · Visualization and Reporting

4.1 Match the Visual to the Message: Avoiding Misleading Encodings

This episode teaches how to match a visual encoding to the message so the chart communicates truthfully, which DA0-002 often tests through prompts that describe a chart choice and ask what is wrong or what would be better.…

Transcript availableDecember 17, 2025
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S01E44Transcript

Domain 4 · Visualization and Reporting

4.2 Manage Data Versioning: Snapshots, Real-Time Feeds, Refresh Intervals

This episode explains data versioning as the mechanism that keeps reporting consistent over time, a concept DA0-002 tests when prompts involve refresh schedules, changing numbers, and reconciliation across systems.…

Transcript availableDecember 17, 2025
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S01E47Transcript

Domain 4 · Visualization and Reporting

4.3 Validate Calculations and Code: Review, Peer Checks, Monitoring Alerts

This episode covers how to validate calculations and code so reports remain accurate as datasets, logic, and requirements evolve, a common DA0-002 theme when questions describe a mismatch between expected and actual results.…

Transcript availableDecember 17, 2025
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S01E48Transcript

Domain 4 · Visualization and Reporting

4.3 Handle Corrupt Data in Reports: Filtering, Reprocessing, Verification

This episode explains how to respond when data in a report appears corrupt, which DA0-002 may test through scenarios involving impossible values, broken formats, sudden spikes, or inconsistent totals after ingestion.…

Transcript availableDecember 17, 2025
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S01E53Transcript

Domain 5 · Data Governance

5.2 Understand Retention, Storage, and Replication Rules for Compliance

This episode explains retention, storage, and replication as governance and compliance concerns that shape how datasets are managed over time, and which DA0-002 tests through scenarios involving policy constraints, risk reduction, and data lifecycle decisions.…

Transcript availableDecember 17, 2025
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S01E61Transcript

Exam Strategy and Review

Exam-Day Tactics: A Simple Mental Model for DA0-002 Success

This episode focuses on practical exam-day execution for CompTIA Data+ DA0-002, helping you apply a consistent mental model so performance stays steady even when questions feel unfamiliar.…

Transcript availableDecember 17, 2025
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A Practical Study Routine

Listen, read, and review in the order that works for you.

01

Listen

Use the free audio course during a commute, walk, workout, or focused study session.

02

Read

Use the study guide to organize the material, annotate key ideas, and build a reference you can return to.

03

Review

Use the flashcards book to practice active recall and quickly revisit weak areas.

Related Cyber Wiki

Continue with the concepts behind the course.

AI operations

AI Feedback Loops

AI feedback loops occur when a system's outputs influence the future data used to evaluate or retrain it.

AI incident response

AI Incident Notification Governance

AI incident notification governance defines when, how, and by whom AI-related events are escalated to leaders, customers, regulators, vendors, legal counsel, and affected parties.

AI abuse prevention

AI Resource Abuse and Denial of Wallet

AI resource abuse targets compute, tokens, storage, tool calls, or paid services to exhaust capacity or create excessive cost.

API security

API-Based Data Ingestion Security

API-based data ingestion security validates the source, identity, authorization, format, rate, and integrity of data accepted through programmatic interfaces.

Agile delivery

Agile Tailoring by Context

Agile tailoring selects and adjusts practices to fit the product, team, risk, governance, technology, and organizational environment while preserving rapid learning and value delivery.

Privacy engineering

Anonymization and De-identification

Anonymization and de-identification reduce the ability to associate released or shared data with a specific person, while accounting for linkage and re-identification risk.