Certbie

The practical study toolkit

Free IT certification resources. Real skills to go with your score.

Official guides help you choose what to learn. Open-source labs help you understand it. Pair both with your practice results to make your next study session count.

Take a free practice test Explore the resources

12 curated resources · 6 study areas · Links and repository licenses checked

One missed question. One useful study session.

  1. 01

    Find the gap

    Take a short practice set. Write down the concept you could not explain, including any answer you guessed correctly.

  2. 02

    Build the understanding

    Check the official objective, then choose one focused exercise below. Predict the result before running the task.

  3. 03

    Check it again

    Explain the result in your own words. Return to fresh questions after a break and see whether the reasoning holds.

Choose your study area

These are supplemental learning resources. Use your certification owner's current objectives to check relevance. Free code or reading does not always mean a free cloud lab.

AWS

Connect cloud architecture decisions to working service integrations.

GitHub labIntermediate

AWS Serverless Patterns (opens in a new tab)

AWS sample integrations for learning how serverless services work together. Useful supporting practice for architecture and developer study.

Service integrationIAMEvent-driven design

Try this study task

Choose a two-service pattern. Sketch its event path, identify the execution role, and explain what should happen if processing fails. Deploy only after reviewing its prerequisites and cleanup steps.

Access & cost: Code is free to read. Deploying AWS resources can incur charges.

Repository license: Repository-specific permissive license (opens in a new tab)

Official guideStart here

AWS certification and exam guides (opens in a new tab)

Find the certification owner's exam pages and preparation resources before choosing topics to study.

Exam objectivesPreparation planning

Try this study task

Open your target certification and its exam guide. Mark each objective as explain, practice, or revisit; map your next missed question to one of those objectives.

Access & cost: Public exam information is free. Training, exams, and lab access may have separate charges.

Microsoft Azure

Practice identity, networking, storage, and administration with Microsoft learning material.

GitHub labIntermediate

Microsoft Azure Administrator labs (opens in a new tab)

Microsoft Learning's administrator lab repository supports practical review of Azure administration topics.

Azure administrationIdentityNetworking

Try this study task

Choose one lab that matches a weak objective. Predict the configuration before following the instructions, then record the validation steps and remove the resources you created.

Access & cost: Lab instructions are publicly accessible. An Azure subscription and chargeable resources may be required.

Repository license: MIT (opens in a new tab)

Official guideStart here

Microsoft Learn credentials (opens in a new tab)

Find Microsoft certification pages, study guides, and linked learning paths for your target role.

Study guidesRole-based learning

Try this study task

Find your exam's study guide and compare its skills measured with your practice results. Complete one linked learning module before attempting fresh questions.

Access & cost: Public documentation is free. Assessments, subscriptions, and lab environments have their own terms.

Google Cloud

Start with exam objectives, then explore infrastructure and IAM in code.

GitHub labAdvanced

Google Cloud Foundation Fabric (opens in a new tab)

Terraform modules and infrastructure blueprints for advanced exploration of Google Cloud design. This is supporting engineering material, not an exam course.

IAMVPC designInfrastructure as code

Try this study task

Read one small VPC or service-account module. Draw the resources and permission boundaries it creates, and explain a least-privilege change without deploying an entire landing zone.

Access & cost: Reading the code is free. Deployment requires suitable permissions and can create billable infrastructure.

Repository license: Apache-2.0 (opens in a new tab)

Official guideStart here

Google Cloud certification guides (opens in a new tab)

Official certification paths with exam-specific guides and preparation links for cloud roles.

Exam objectivesCloud roles

Try this study task

Open the guide for your chosen role. For each weak domain, write one service-selection decision you cannot yet explain and find its product documentation.

Access & cost: Public certification information is free; training, labs, and exam registration may be paid.

Kubernetes

Build command-line fluency alongside your CKA and CKAD concept review.

GitHub labIntermediate

Kubernetes application examples (opens in a new tab)

Application examples from the Kubernetes project for practicing manifests and application behavior in a cluster.

ManifestsServicesTroubleshooting

Try this study task

Use a disposable cluster. Read a simple application's manifests, predict which Pods its Service selects, then change a label and use kubectl to diagnose the resulting connectivity problem.

Access & cost: Source is free. A local cluster uses your computer; hosted clusters may incur charges.

Repository license: Apache-2.0 (opens in a new tab)

Official guideBeginner to intermediate

Kubernetes official tutorials (opens in a new tab)

Guided tutorials for learning Kubernetes behavior and building practical skills beyond multiple-choice recall.

WorkloadsCluster basicskubectl

Try this study task

Complete a basic application tutorial. Repeat the task without the walkthrough, then explain the difference between declared configuration and observed cluster state.

Access & cost: Documentation is free. Your chosen cluster environment may have costs.

Networking

Make packet paths and troubleshooting decisions visible for CCNA and Network+ study.

GitHub labIntermediate; Linux required

Mininet network emulator (opens in a new tab)

A Linux network emulator for exploring hosts, switches, links, and packet flow. It teaches networking concepts but does not emulate Cisco IOS.

Packet pathsTopologyTroubleshooting

Try this study task

Follow the project's installation guide in a lab VM. Build a small topology, predict host reachability, test it, and sketch the path a packet takes when you change a link.

Access & cost: Open-source software; requires a compatible Linux environment or VM.

Repository license: BSD-3-Clause (opens in a new tab)

Official guideStart here

Cisco CCNA exam and preparation (opens in a new tab)

Cisco's CCNA overview and preparation links provide the starting point for checking the exam's scope.

Exam topicsNetwork fundamentals

Try this study task

Open the exam topics. Pick one routing or switching objective and pair it with a topology, a configuration task, and a command that proves the result.

Access & cost: Public exam information is free. Courses, simulators, and the certification exam have separate terms.

Security

Connect security concepts to a controlled application lab and a testing methodology.

GitHub labIntermediate

OWASP Juice Shop (opens in a new tab)

An intentionally vulnerable application for practicing web security in a controlled lab. Useful supplementary work for application-security topics.

Web securityAccess controlRemediation

Try this study task

Run a local, isolated instance using the project's instructions. Complete one introductory challenge, explain its root cause, and write the server-side control that would prevent it.

Access & cost: Open-source application; can run locally. Keep the intentionally vulnerable app isolated from public networks.

Repository license: MIT (opens in a new tab)

Official guideIntermediate

OWASP Web Security Testing Guide (opens in a new tab)

OWASP's testing methodology adds structure to application-security review. It supplements exam objectives rather than replacing a certification owner's guide.

Testing methodologySecurity evidence

Try this study task

Choose one testing category relevant to a missed question. In your own lab, record the test precondition, expected secure behavior, evidence, and remediation.

Access & cost: Free to read. Perform exercises only in your own lab or an explicitly authorized environment.

How we choose resources

We link to vendor documentation, project maintainers, and publicly licensed repositories with a clear learning use. The tasks above are Certbie study suggestions, not claims that a repository covers an entire exam. We have checked the listed sources and license information; we have not run every lab. Follow each project's prerequisites and cleanup instructions.

Certbie is independent of these projects and certification owners. We do not redistribute their question banks. A repository link is a starting point for learning; check its license before reusing its material.

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