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.

University of Colorado Boulder
Skills you'll gain: Performance Testing, Scalability, Data Architecture, Software Architecture, Distributed Computing, Performance Stress Testing, Predictive Modeling, Performance Tuning, Microservices, Big Data, Database Architecture and Administration, System Testing, Software Engineering, Data Store, Model Evaluation
★ 3.5 (31) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Technical Documentation, Solution Architecture, Model Deployment, Software Documentation, AI Integrations, MLOps (Machine Learning Operations), Artificial Intelligence and Machine Learning (AI/ML), Systems Architecture, Systems Development Life Cycle, Cloud Computing Architecture, Data Architecture, Data Integration, Systems Design, Functional Specification, Data Pipelines, Scalability
Intermediate · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Time Series Analysis and Forecasting, R (Software), R Programming, Statistical Analysis, Statistical Software, Forecasting, Statistical Modeling, Data Analysis, Statistical Methods, Statistical Reporting, Predictive Modeling, Correlation Analysis, Statistical Visualization, Data Presentation, Probability & Statistics, Model Evaluation, Statistical Hypothesis Testing, Numerical Analysis, Data Transformation
★ 4.2 (9) · Intermediate · Course · 1 - 3 Months

Michigan State University
Skills you'll gain: Fundraising and Crowdsourcing, Grant Writing, Fundraising, Grant Applications, Digital Media Strategy, Digital Brand Strategy, Social Media Content, Social Media, Social Media Strategy, Stakeholder Engagement, Social Media Marketing, Brand Marketing, Web Presence, Campaign Planning, Content Strategy, Drive Engagement, Content Creation, Prospecting and Qualification
★ 4.5 (57) · Beginner · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Creative Thinking, Creativity, Innovation, Business Modeling, Strategic Thinking, Entrepreneurship, Strategic Planning, Business Strategies, Business Development, New Business Development, Collaboration, Analysis, Performance Analysis
★ 4.7 (88) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Excel Formulas, Data Validation, Microsoft Excel, Accounting and Finance Software, Standard Accounting Practices, Spreadsheet Software, Data Maintenance, Data Quality, Data Integrity
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Package and Software Management, Linux Administration, Shell Script, Ubuntu, User Accounts, Linux, Devops Tools, Linux Servers, grep, Linux Commands, Red Hat Enterprise Linux, Bash (Scripting Language), Kubernetes, Command-Line Interface, Network Troubleshooting, Containerization, Ansible, File Systems, Application Deployment, Authentications
★ 4.6 (31) · Intermediate · Specialization · 1 - 3 Months

University of California, Davis
Skills you'll gain: Copywriting, Social Media Marketing, Content Marketing, Content Optimization, Writing and Editing, Selling Techniques, Driving engagement, Branding, Email Marketing, Marketing, Advertising Campaigns, Search Engine Optimization
★ 4.7 (7) · Intermediate · Course · 1 - 4 Weeks

Whizlabs
Skills you'll gain: Microsoft Azure, Kubernetes, Containerization, Virtual Machines, Application Deployment, Cloud Deployment, Cloud Computing, Cloud Applications, Infrastructure As A Service (IaaS), Cloud-Native Computing, Cloud Infrastructure, Virtualization and Virtual Machines, Infrastructure as Code (IaC), Scalability, Scripting
★ 4.1 (23) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: File Systems, Mac OS, User Accounts, File Management, User Provisioning, Data Security, Operating System Administration, Software Installation, Unix, System Configuration, Unix Commands, Security Controls, Knowledge of Apple Hardware, Authorization (Computing), Data Management, Disaster Recovery, Data Storage, Control Panels, Encryption
★ 4.9 (10) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Natural Language Processing, Large Language Modeling, Fine-tuning, Model Evaluation, Recurrent Neural Networks (RNNs), Data Ethics, Responsible AI, Text Mining, Transfer Learning, PyTorch (Machine Learning Library), Artificial Neural Networks, Data Preprocessing, Artificial Intelligence and Machine Learning (AI/ML), Deep Learning, Classification Algorithms, Applied Machine Learning, Data Processing, Machine Learning, Data Analysis, Data Cleansing
★ 3.3 (7) · Intermediate · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Health Policy, Health Systems, Public Health, Health Administration, Research Design, Systems Analysis, Scalability, Technical Communication
★ 4.7 (42) · Intermediate · Course · 1 - 4 Weeks