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.

Princeton University
Skills you'll gain: Graph Theory, Data Structures, Algorithms, Theoretical Computer Science, Operations Research, Computational Thinking, Computer Programming, Network Routing, Java Programming, Linear Algebra
Intermediate · Course · 3 - 6 Months

Stanford University
Skills you'll gain: Healthcare Ethics, Data Ethics, Applied Machine Learning, Machine Learning Algorithms, Machine Learning, Responsible AI, Artificial Neural Networks, Healthcare Industry Knowledge, Model Evaluation, Artificial Intelligence and Machine Learning (AI/ML), Reinforcement Learning, Deep Learning, Convolutional Neural Networks, Health Policy, Data Preprocessing
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Data Modeling, Oracle SQL Developer, Relational Databases, Database Design, Databases, SQL, Oracle Databases, Database Management, Software Installation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cybersecurity, Business Continuity, Threat Detection, Endpoint Security, Cyber Security Policies, Incident Response, Cyber Governance, Vulnerability Assessments, Network Security, Application Security, Cloud Security, Risk Management, Encryption, Authentications
Beginner · Course · 1 - 3 Months

Skills you'll gain: Sales Strategy, Consultative Selling, B2B Sales, Customer Relationship Building, Business Communication, Sales Pipelines, Overcoming Objections, Sales Process, Proposal Writing, Personalized Service, Digital Transformation, Prospecting and Qualification, AI Personalization, Value Propositions
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Network Performance Management, Software-Defined Networking, Network Administration, Network Routing, Wide Area Networks, Network Monitoring, Disaster Recovery, Virtual Networking, Performance Tuning, General Networking, Network Engineering, Network Planning And Design, Network Troubleshooting, Network Security, Cyber Security Assessment, Vulnerability Scanning, Continuous Monitoring, Security Management, Patch Management, Application Performance Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Social Media Content, Social Media, Facebook, Content Creation, Marketing Materials, Social Media Marketing, Instagram, Graphic Design, Brand Management, Digital Marketing
Beginner · Guided Project · Less Than 2 Hours

LearnQuest
Skills you'll gain: Sales Training, Inside Sales, Closing (Sales), Regional Sales, Sales Enablement, Sales Management, Sales Prospecting, Active Listening, Customer Relationship Management (CRM) Software, Meeting Facilitation, Marketing Automation, Discussion Facilitation, Customer Analysis, Virtual Teams, Stakeholder Analysis, Customer Insights, Negotiation, Needs Assessment, Data Storytelling, Emotional Intelligence
Beginner · Specialization · 1 - 3 Months

LearnQuest
Skills you'll gain: Stored Procedure, PL/SQL, SQL, Database Management, Data Access, Databases, Database Systems, Java, Java Programming, JUnit
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Statistical Hypothesis Testing, Sampling (Statistics), Regression Analysis, Bayesian Statistics, Statistical Analysis, Probability & Statistics, Statistical Inference, Statistical Methods, Statistical Modeling, Linear Algebra, Probability, Probability Distribution, R Programming, Biostatistics, Data Science, Statistics, Mathematical Modeling, Data Analysis, Data Modeling, Applied Mathematics
Advanced · Specialization · 3 - 6 Months

Skills you'll gain: Networking Hardware, General Networking, Network Architecture, Wireless Networks, Network Protocols, Computer Networking, TCP/IP, Local Area Networks, Network Routers, System Configuration, Network Switches, Wide Area Networks, Servers
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Georgia Institute of Technology
Skills you'll gain: Professional Networking, LinkedIn, Instagram, Writing, Concision, Social Media, Grammar, Business Writing, English Language, Branding, Vocabulary
Mixed · Course · 1 - 4 Weeks