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: Closing (Sales), Sales Prospecting, Overcoming Objections, Sales, Prospecting and Qualification, Sales Process, Sales Strategy, Customer Relationship Management (CRM) Software, Lead Generation, Digital Brand Strategy, Negotiation, AI Personalization, Marketing Automation, Customer Engagement, Ethical Standards And Conduct, Law, Regulation, and Compliance, Cultural Sensitivity, Key Performance Indicators (KPIs), Cultural Diversity
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Artificial Intelligence and Machine Learning (AI/ML), Machine Learning Methods, Artificial Intelligence, Agentic systems, Machine Learning Algorithms, Bayesian Network, Applied Machine Learning, Computational Logic, Machine Learning, Unsupervised Learning, Agentic Workflows, Bayesian Statistics, Artificial Neural Networks, Reinforcement Learning, Decision Intelligence, Markov Model, Algorithms, Programming Principles, Probability & Statistics
★ 5 (10) · Mixed · Course · 1 - 3 Months

AI CERTs
Beginner · Course · 1 - 3 Months

The University of Chicago
Skills you'll gain: Keras (Neural Network Library), Machine Learning Methods, Unsupervised Learning, Machine Learning Algorithms, Deep Learning, Machine Learning, Statistical Machine Learning, Machine Learning Software, Decision Tree Learning, Applied Machine Learning, Scikit Learn (Machine Learning Library), Classification Algorithms, Supervised Learning, Regression Analysis, Artificial Intelligence and Machine Learning (AI/ML), Random Forest Algorithm, Model Training, Dimensionality Reduction, Model Evaluation, Data Preprocessing
★ 3.9 (25) · Intermediate · Course · 1 - 3 Months

Yonsei University
Skills you'll gain: Disaster Recovery, Mitigation, Public Safety and National Security, Risk Management Framework, Emergency Response, Geospatial Information and Technology, Policty Analysis, Research, and Development, Policy Development, Public Policies, Spatial Data Analysis, Social Studies, Systems Thinking, Governance, Case Studies
★ 4.7 (91) · Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Model Based Systems Engineering, Mathematical Modeling, Systems Architecture, Automation Engineering, Control Systems, Network Model, Mechanical Engineering, Mechanics, Systems Analysis, Theoretical Computer Science, Applied Mathematics, Automation, Differential Equations, Safety Assurance, Failure Analysis, Basic Electrical Systems
★ 3.4 (22) · Intermediate · Course · 1 - 3 Months

Whizlabs
Skills you'll gain: Microsoft Azure, Role-Based Access Control (RBAC), Cloud Storage, Data Storage, Identity and Access Management, Data Storage Technologies, Cloud Management, Authorization (Computing), Data Management, Data Access, Data Security, Data Governance, Configuration Management
★ 4.2 (29) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Quality, Quantitative Research, Data Management, Quality Assurance, Data Cleansing, Quality Improvement, Continuous Quality Improvement (CQI), Quality Assessment, Data Validation, Data Pipelines, Key Performance Indicators (KPIs), SQL, Data Processing, Extract, Transform, Load, Performance Analysis, Continuous Monitoring, Automation, Trend Analysis
Advanced · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Kubernetes, Application Deployment, Cloud-Native Computing, Cloud Deployment, IT Automation, Containerization, Scalability, Devops Tools, Configuration Management, DevOps, Application Lifecycle Management, System Configuration, Security Controls, Memory Management, Data Persistence
★ 4.1 (20) · Intermediate · Course · 1 - 4 Weeks
University of Rochester
Skills you'll gain: Market Dynamics, Supply And Demand, Economics, Policy, and Social Studies, Economics, Business Economics, Policty Analysis, Research, and Development, Social Sciences, Public Policies, Market Analysis, Competitive Analysis, Consumer Behaviour, Human Capital
★ 4.9 (42) · Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Model Evaluation, Statistical Modeling, Applied Machine Learning, Unsupervised Learning, Statistical Machine Learning, Data Science, Decision Tree Learning, Statistical Methods, Classification And Regression Tree (CART), Artificial Neural Networks, Statistical Analysis, Regression Analysis, Predictive Modeling, Machine Learning Methods, Classification Algorithms, Supervised Learning, R Programming, Statistical Inference, Machine Learning Algorithms, Dimensionality Reduction
★ 4.1 (21) · Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Linux Commands, Linux, Command-Line Interface, File Management, Unix Shell, Linux Administration, Package and Software Management, DevOps
★ 4.5 (160) · Beginner · Guided Project · Less Than 2 Hours