Network security courses can help you learn about firewalls, intrusion detection systems, and encryption protocols. You can build skills in risk assessment, incident response, and vulnerability management. Many courses introduce tools like Wireshark for network analysis, Nessus for vulnerability scanning, and various security information and event management (SIEM) systems, showing how these skills are applied in practical work to protect networks from cyber threats.

LearnQuest
Skills you'll gain: Spring Framework, Object-Relational Mapping, Transaction Processing, Data Persistence, Spring Boot, Database Management, Database Systems, Data Access, Restful API, Web Services, Data Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Meta Ads Manager, Advertising Campaigns, Advertising, Target Audience, Social Media Campaigns, Marketing Budgets, Campaign Management, Social Media, Media Planning, Social Media Management, Online Advertising, Social Media Marketing, Performance Analysis, Facebook, Paid media, Performance marketing, Budget Management, Digital Advertising, Campaign Planning, Budgeting
Beginner · Course · 1 - 3 Months

Skillshare
Skills you'll gain: 3D Modeling, 3D Assets, Network Model, Computer Graphics, Visualization (Computer Graphics), Computer Graphic Techniques, Software Installation, Design Elements And Principles, Creative Design, Control Panels, User Interface (UI), Graphical Tools, UI Components, Aesthetics, Editing, Dataflow, Animations, Scalability, Debugging
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Feature Engineering, Exploratory Data Analysis, Pandas (Python Package), Scikit Learn (Machine Learning Library), Data Manipulation, Applied Machine Learning, NumPy, Statistical Machine Learning, Classification Algorithms, Data Preprocessing, Data Processing, Data Wrangling, Python Programming, Regression Analysis, Predictive Modeling, Machine Learning Algorithms, Machine Learning, Model Evaluation, Data Science, Statistical Hypothesis Testing
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: TCP/IP, Network Protocols, Routing Protocols, Dynamic Host Configuration Protocol (DHCP), Network Security, Network Routing, Software-Defined Networking, Virtualization
Mixed · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Cloud Deployment, Agentic Workflows, Model Deployment, Application Deployment, Generative AI Agents, Agentic systems, AI Workflows, Token Optimization, LLM Application, Cloud Hosting, Virtual Machines, System Configuration, Automation, Servers, Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML), AI Security, Context Engineering, Generative AI, Prompt Engineering
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: SQL, Oracle Databases, Database Management, Database Development, Relational Databases, Database Design, Query Languages
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Computing Architecture, Solution Architecture, Cloud Solutions, Cloud Platforms, Enterprise Architecture, IT Security Architecture, Cloud Infrastructure, Cloud Services, Public Cloud, Cloud Applications, Cloud Computing, Cloud Security, Professional Development, Open Source Technology, AWS CloudFormation, Social Impact, Interviewing Skills, IT Infrastructure, Job Evaluation, Scalability
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Digital Transformation, Cloud Platforms, Cloud Services, Cloud Computing, Cloud Computing Architecture, Cloud Hosting, Cloud Deployment, Public Cloud, Cloud Infrastructure, Business Transformation, Infrastructure As A Service (IaaS), Google Cloud Platform, Hybrid Cloud Computing, Business Technologies, Network Infrastructure, General Networking, Computer Networking
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Mobile Development, Mobile Development Tools, iOS Development, Other Mobile Programming Languages, Flutter (Software), Integrated Development Environments, Development Environment, Apple iOS, Android Studio, Computer Programming Tools, Application Development, Swift Programming, Test Tools, React Native, Apple Xcode, Application Frameworks, Web Applications, Cross Platform Development, Software Testing, Cloud Hosting
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, Linux, Linux Servers, Linux Commands, Remote Access Systems, Cryptographic Protocols, Web Servers, Scalability, Scripting, Data Integrity
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Communication Planning, Strategic Communication, Planning, Communication Strategies, Media Strategy, Strategic Planning, Media Planning, Stakeholder Communications, Media and Communications, Project Planning, Network Planning And Design, Communication Systems, Program Evaluation, Communication, Integrated Marketing Communications, Systems Development, Analysis, Influencing, Systems Design, Environment
Mixed · Course · 1 - 4 Weeks