Online Certification Training Platform for Engineers

WIANDIG provides certification exam preparation materials through L-Hub.
Register an account and subscribe to a paid plan to access an AI chatbot designed to support your certification studies.

Online certification learning with an AI tutor on a laptop and smartphone, accompanied by a small blue AI assistant.

Explore our certification preparation courses:

  • AWS Certification
  • Cisco Certification
  • Google Cloud Certification
  • LPIC (Linux Professional Institute)
  • Microsoft Certification (Azure)
  • Oracle Certification (Java / Oracle Database)
  • Red Hat Certification

Our courses combine learning materials that build technical understanding with practice questions to help you prepare for the exam.

Learn with the Mobile App

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L-Hub Mobile App
Certification learning on your smartphone · Exam preparation

L-Hub also offers certification preparation courses through its mobile app.

Find a Course

Search and browse our certification preparation courses below.


Cisco Certification

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Cisco Certification
Networking technologies · Exam preparation

Cisco certification courses focus on networking skills, including routing, switching, security, and enterprise network technologies.

CCNA v1.1 (200-301)

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CCNA
Networking fundamentals · Exam preparation

Cisco Certified Network Associate (CCNA) validates foundational knowledge and skills in networking, IP connectivity, security fundamentals, automation, and network management. It is designed for professionals who want to build a career in networking and IT infrastructure.

CCNP Enterprise
(350-401 ENCOR, 300-410 ENARSI)

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CCNP Enterprise
Network design and operations · Exam preparation

Cisco Certified Network Professional (CCNP) Enterprise is an advanced networking certification for professionals who implement, manage, and troubleshoot enterprise networks. It covers enterprise infrastructure, routing, switching, wireless networks, virtualization, automation, security, and network assurance.

Earn the certification by passing a core exam and one concentration exam. Explore our CCNP Enterprise courses below.


LPIC (Linux Professional Institute)

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LPIC
Linux fundamentals and administration · Exam preparation

LPI certification courses are designed for learners who want to build Linux administration skills and prepare for professional Linux exams.

LPIC Level 1

LPIC-1 covers essential Linux administration skills, including system architecture, installation and package management, GNU and Unix commands, networking, security, and basic system administration.

To earn LPIC-1, candidates must pass both the 101 and 102 exams.

LPIC Level 2

LPIC-2 covers advanced Linux system administration, including storage management, networking, system security, web services, file sharing, email services, and troubleshooting.

To earn LPIC-2, candidates must have an active LPIC-1 certification and pass both the 201 and 202 exams.

LPIC Level 3

LPIC-3 is designed for experienced Linux professionals and focuses on enterprise-level administration and specialized technical skills. Candidates must have an active LPIC-2 certification and pass one LPIC-3 specialty exam.

  • LPIC-3 Mixed Environments
  • LPIC-3 Security
  • LPIC-3 Virtualization and Containerization
  • LPIC-3 High Availability and Storage Clusters

Red Hat Certification

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Red Hat Certification
Linux and system administration · Exam preparation

Red Hat certification courses focus on practical Linux system administration and enterprise-level Red Hat technologies.

RHCSA (EX200)

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RHCSA
Practical Linux administration · Exam preparation

The Red Hat Certified System Administrator (RHCSA) certification validates essential skills in Red Hat Enterprise Linux (RHEL) system administration. It covers command-line operations, storage management, user and group administration, security, networking, and system services.

The performance-based EX200 exam requires completing practical system administration tasks in a hands-on environment.

RHCE (EX294)

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RHCE
Automation and configuration management · Exam preparation

The Red Hat Certified Engineer (RHCE) certification validates advanced Linux system administration and automation skills. It focuses on automating the deployment, configuration, and management of RHEL systems with Red Hat Ansible Automation Platform.

The performance-based EX294 exam builds on the system administration skills covered by RHCSA and emphasizes automation across multiple systems.


Oracle Certification (Java / Oracle Database)

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Oracle Certification
Java / Oracle Database · Exam preparation

Oracle certification courses cover database, Java, and enterprise technology skills for professionals working with Oracle products.

Oracle Database

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Oracle Database
SQL and database administration · Exam preparation

Oracle Database certifications validate skills in SQL, database administration, backup and recovery, performance management, security, and high availability. Choose a certification path based on the Oracle Database version and the skills you want to develop, from SQL fundamentals to advanced administration.

Java

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Java
Java programming and application development · Exam preparation

Oracle Java certifications validate programming skills and knowledge of the Java platform. They cover object-oriented programming, data types, classes and interfaces, collections, exception handling, streams, concurrency, and other Java SE features.

Explore Java certification preparation courses for different stages of your development career.


AWS (Amazon Web Services) Certification

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AWS Certification
Cloud architecture and operations · Exam preparation

AWS certification courses help learners build cloud computing skills and prepare for exams related to cloud fundamentals, architecture, and AWS services.

AWS Certified Cloud Practitioner

AWS Certified Cloud Practitioner is a foundational certification that validates basic knowledge of AWS Cloud concepts, services, security, pricing, and terminology. It is intended for individuals who are beginning their cloud journey or want to demonstrate a fundamental understanding of AWS.

AWS Certified Solutions Architect – Associate

AWS Certified Solutions Architect – Associate validates the ability to design cost and performance optimized solutions on AWS. It demonstrates knowledge of AWS services and architectural best practices for secure, resilient, high-performing, and cost-effective cloud solutions.


Google Cloud Certification

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Google Cloud Certification
Cloud architecture and operations · Exam preparation

Google Cloud certifications validate skills in designing, deploying, and managing cloud solutions using Google Cloud technologies. They cover roles and levels from foundational knowledge to advanced expertise in architecture, data, AI, and security.


Microsoft Certification (Azure)

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Microsoft Certification (Azure)
Cloud architecture and operations · Exam preparation

Microsoft Azure is a cloud computing platform with services for computing, storage, networking, databases, analytics, and artificial intelligence.

Microsoft Azure certifications validate skills for designing, implementing, managing, and securing cloud solutions. The program covers foundational knowledge and advanced roles in cloud architecture, administration, data, security, and development.

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