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.

Pearson
Skills you'll gain: Linux Administration, User Accounts, Operating System Administration, Linux, File Systems, Systems Administration, Authorization (Computing), Security Controls, Data Storage, Identity and Access Management, File Management, System Configuration, Data Storage Technologies
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, File Systems, Linux, File Management, Firewall, Remote Access Systems, Network Troubleshooting, Command-Line Interface, Unix Commands, System Support, Virtual Machines, Scripting
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Science, Unsupervised Learning, Exploratory Data Analysis, Probability & Statistics, Machine Learning Algorithms, Applied Machine Learning, Classification And Regression Tree (CART), Data Analysis, Python Programming, Random Forest Algorithm, Dimensionality Reduction, Predictive Modeling, NumPy, Regression Analysis, Statistical Analysis, Data Processing, Deep Learning, Pandas (Python Package), Data Visualization, Data Manipulation
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Adobe Illustrator, Graphic and Visual Design, Layout Design, Visual Design, Graphic Design, Workflow Management, Creative Design, Collaboration, Scalability, Computer Graphic Techniques, Creative Thinking, Creative Problem-Solving
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Oracle Databases, Operational Databases, Scalability, Database Management, Performance Tuning, Database Management Systems, Database Architecture and Administration, System Monitoring
Advanced · Course · 1 - 4 Weeks

O.P. Jindal Global University
Skills you'll gain: Sampling (Statistics), Statistical Analysis, Probability Distribution, Statistical Hypothesis Testing, Descriptive Statistics, Statistical Methods, Correlation Analysis, Regression Analysis, R (Software), R Programming, Statistical Modeling, Statistical Inference, Probability, Big Data, Decision Tree Learning
Build toward a degree
Mixed · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Multiprotocol Label Switching, Routing Protocols, Network Routing, Network Engineering, Network Monitoring, Network Performance Management, Network Troubleshooting, Network Planning And Design, Network Administration, Network Protocols
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Facebook, Online Advertising, Web Analytics, Social Media Marketing, Digital Advertising, User Accounts, Compliance Management
Intermediate · Guided Project · Less Than 2 Hours

Fundação Instituto de Administração
Skills you'll gain: Marketing Analytics, Data Visualization, Sales Strategy, Marketing Strategies, Digital Media Strategy, Data Visualization Software, Customer Engagement, Analytics, Consumer Behaviour, Market Analysis, Regression Analysis, Statistical Analysis, Exploratory Data Analysis, Pandas (Python Package), Decision Tree Learning, Decision Making, Logistic Regression, Artificial Neural Networks
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Statistical Process Controls, Six Sigma Methodology, Quality Control, Plot (Graphics), Data Literacy, Statistical Analysis, R Programming
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Geospatial Information and Technology, Geospatial Mapping, Spatial Data Analysis, Geographic Information Systems, Unsupervised Learning, Image Analysis, Machine Learning, R Programming, Data Processing, Data Preprocessing, Classification Algorithms, Data Transformation, Dimensionality Reduction
Intermediate · Course · 1 - 3 Months

Digital Marketing Institute
Skills you'll gain: Digital Marketing, Social Media Marketing, Marketing Channel, Digital Media Strategy, Marketing Automation, Marketing Strategy and Techniques, Social Media Strategy, Digital Advertising, Email Marketing, Content Marketing, Search Engine Optimization, Marketing Communications, E-Commerce, Customer Relationship Management (CRM) Software, Demand Generation, Marketing Analytics, Customer Service, Web Applications
Beginner · Course · 1 - 4 Weeks