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.

Coursera
Skills you'll gain: Model Training, Model Deployment, MLOps (Machine Learning Operations), Applied Machine Learning, Model Evaluation, Scikit Learn (Machine Learning Library), Machine Learning Methods, Machine Learning, Predictive Modeling, Scenario Testing, Machine Learning Algorithms, Feature Engineering, Statistical Machine Learning, Responsible AI, Regression Analysis, Classification Algorithms, Continuous Monitoring
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Email Automation, Email Marketing, Lead Generation, Marketing Automation, Social Media, Social Media Marketing, Driving engagement, Automation
★ 4.4 (54) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Dashboard, Dashboard Creation, Data Visualization, Web Content Accessibility Guidelines, Data Presentation, Data Literacy, Data Visualization Software, Statistical Visualization, Heat Maps, Scatter Plots
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Content Performance Analysis, Content Optimization, Web Analytics and SEO, Content Creation, Web Content, Search Engine Optimization, Performance Analysis, Digital Publishing, Content Marketing, Driving engagement, Content Management Systems, Web Analytics, Performance Measurement, Performance Metric, Performance Improvement, Data-Driven Marketing, Copywriting, Process Optimization, Benchmarking, Data-Driven Decision-Making
Beginner · Course · 1 - 4 Weeks

University of Florida
Skills you'll gain: Land Management, Sustainable Development, Sustainable Systems, Water Resource Management, Water Resources, Environment and Resource Management, Environment, Environmental Science, Natural Resource Management, Environmental Issue, Biology
★ 4.8 (43) · Intermediate · Course · 1 - 4 Weeks

Pontificia Universidad Católica de Chile
Skills you'll gain: Basic Electrical Systems, Electronic Components, Electrical Engineering, Electronic Systems, Electrical Power, Electrical and Computer Engineering, Electronics, Network Analysis, Engineering Analysis, Schematic Diagrams, Simulation and Simulation Software, Mathematical Modeling
★ 4.9 (48) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Database Administration, Microsoft SQL Servers, Microsoft Azure, Database Management, Operational Databases, Transact-SQL, Database Architecture and Administration, Database Management Systems, Performance Tuning, SQL, Cloud Computing, Security Controls, Azure Active Directory, Cloud Security, Disaster Recovery, Data Migration, Data Security, Virtual Machines
★ 3.9 (15) · Intermediate · Course · 1 - 3 Months

Infosec
Skills you'll gain: File Systems, Digital Forensics, Microsoft Windows, File Management, Operating Systems, Data Structures, Data Validation, File I/O, Data Storage
★ 4.7 (81) · Intermediate · Course · 1 - 3 Months

Simplilearn
Skills you'll gain: Marketing Strategies, Data-Driven Marketing, Marketing Effectiveness, Email Marketing, Marketing Analytics, Digital Marketing, Driving engagement, Customer Relationship Management, Digital Advertising, Online Advertising, Google Ads, Social Media Marketing, Cross-Channel Marketing, Target Market, Personalized Campaigns, Data Collection
★ 4.7 (20) · Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Prompt Engineering, Generative AI, Google Cloud Platform, LLM Application, Large Language Modeling, Cloud Computing
★ 4.4 (19) · Beginner · Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Network Analysis, Unsupervised Learning, Social Network Analysis, Supervised Learning, Applied Machine Learning, Network Model, Unstructured Data, Marketing Analytics, Social Media Analytics, Deep Learning, Scikit Learn (Machine Learning Library), Machine Learning, Tensorflow, Model Training, Machine Learning Algorithms, Text Mining, Data Analysis, Model Evaluation, Transfer Learning, Statistical Methods
★ 3.2 (16) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Statistical Inference, Probability Distribution, R Programming, Statistical Visualization, R (Software), Statistical Programming, Statistical Methods, Probability & Statistics, Statistics, Data Visualization, Statistical Analysis, Plot (Graphics), Statistical Modeling, Statistical Hypothesis Testing, Data Analysis, Probability
★ 4.8 (37) · Beginner · Guided Project · Less Than 2 Hours