Computer network courses can help you learn about network architecture, protocols, security measures, and troubleshooting techniques. You can build skills in configuring routers and switches, managing firewalls, and optimizing network performance. Many courses introduce tools like Wireshark for packet analysis, Cisco Packet Tracer for simulation, and various network monitoring software, allowing you to apply your knowledge in practical scenarios and enhance your technical expertise.

Skills you'll gain: Sales Process, Stakeholder Management, Sales Training, Sales, Sales Prospecting, Stakeholder Engagement, General Sales Practices, Sales Territory Management, Sales Management, Prospecting and Qualification, Selling Techniques, Cold Calling, Account Strategy, Stakeholder Analysis, Sales Development, Account Management, Sales Presentation, Sales Strategy, Sales Enablement, Cross Selling
★ 4.7 (20) · Beginner · Professional Certificate · 3 - 6 Months

LearnQuest
Skills you'll gain: Object-Relational Mapping, Java Platform Enterprise Edition (J2EE), Database Design, Data Access, Data Persistence, Java, Relational Databases, Data Mapping, Java Programming, JUnit, Query Languages, Data Modeling, Transaction Processing, Software Versioning
★ 5 (13) · Intermediate · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Git (Version Control System), Version Control, Android Development, File I/O, Android (Operating System), Android Studio, Mobile Development, Data Persistence, Java Programming, Application Development, Event-Driven Programming, Computer Programming
★ 4.2 (801) · Mixed · Course · 1 - 3 Months

University of London
Skills you'll gain: Virtual Reality, Augmented and Virtual Reality (AR/VR), 3D Assets, Unity Engine, Visualization (Computer Graphics), Virtual Environment, Computer Graphics, Video Game Development, Computer Graphic Techniques, Game Design, Performance Tuning
★ 4.6 (387) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: LangChain, LLM Application, Tool Calling, AI Workflows, Generative AI Agents, Agentic Workflows, Artificial Intelligence and Machine Learning (AI/ML), Application Development, Data Visualization, Agentic systems, Analytics, Software Development
★ 4.5 (145) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Operating System Administration, File Systems, Microsoft Windows, Desktop Support, Interoperability, Linux Administration, Unix, System Configuration, Knowledge of Apple Software, Computing Platforms, Ubuntu, Systems Administration, Operating Systems, Mac OS, System Support, Software Installation, File Management, Security Controls, Network Security, Data Security
Beginner · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Test Planning, Linux, Embedded Systems, Electronics, Internet Of Things, Embedded Software, Network Protocols, User Requirements Documents, Functional Specification, Electronic Components, Functional Requirement, OSI Models, Basic Electrical Systems, Electronic Hardware, Linux Commands, Operating Systems, Debugging, Application Programming Interface (API), TCP/IP, Python Programming
★ 4.7 (21K) · Beginner · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Computational Thinking, Data Collection, Microsoft Visual Studio, Program Development, C (Programming Language), Programming Principles, Algorithms, Microsoft Development Tools, Integrated Development Environments, Data Storage, Development Environment, Computer Programming, Mathematical Software
★ 4.6 (377) · Beginner · Course · 1 - 4 Weeks

Alberta Machine Intelligence Institute
Skills you'll gain: Supervised Learning, Data Preprocessing, Feature Engineering, Model Optimization, Responsible AI, Machine Learning Algorithms, Data Ethics, Applied Machine Learning, Model Evaluation, Data Quality, Machine Learning Methods, Classification Algorithms, Model Training, MLOps (Machine Learning Operations), Model Deployment, Jupyter, Statistical Machine Learning, Data Validation, Machine Learning, Project Management
★ 4.6 (1.1K) · Intermediate · Specialization · 3 - 6 Months

ConsenSys Academy
Skills you'll gain: Blockchain, Cryptography, Interoperability, Cryptographic Protocols, Encryption, Public Key Cryptography Standards (PKCS), FinTech, Emerging Technologies, Ledgers (Accounting), Distributed Computing, Case Studies, Digital Assets, Data Integrity, Transaction Processing
★ 4.7 (846) · Beginner · Course · 1 - 3 Months

Imperial College London
Skills you'll gain: Dimensionality Reduction, Linear Algebra, Regression Analysis, NumPy, Calculus, Unsupervised Learning, Applied Mathematics, Statistical Methods, Descriptive Statistics, Model Optimization, Mathematical Software, Machine Learning Methods, Jupyter, Statistics, Numerical Analysis, Applied Machine Learning, Geometry, Data Science, Data Manipulation, Data Transformation
★ 4.6 (15K) · Beginner · Specialization · 3 - 6 Months
Skills you'll gain: Social Media Marketing, Social Media Strategy, Paid media, Social Media Management, Social Media Content, Social Media Campaigns, Content Creation, Drive Engagement, Digital Media Strategy, Content Performance Analysis, Content Scheduling, Driving engagement, Digital Advertising, Advertising Campaigns, Customer Engagement, Brand Awareness, Advertising, Brand Management, Marketing Analytics, Branding
★ 4.8 (4K) · Beginner · Course · 1 - 3 Months