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.

Northeastern University
Skills you'll gain: Information Privacy, Personally Identifiable Information, Data Ethics, Law, Regulation, and Compliance, Data Security, Journalism, Emerging Technologies, Media and Communications, Internet Of Things, Algorithms, Artificial Intelligence
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Extract, Transform, Load, Data Pipelines, Data Integration, File Management, Scalability, Data Processing, Java, Data Transformation, Configuration Management
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: TCP/IP, Network Routers, Network Routing, Network Security, Network Administration, Network Protocols, Network Troubleshooting, Network Switches
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Agile Methodology, User Story, Agile Software Development, Business Analysis, Sprint Retrospectives, Agile Project Management, Agile Product Development, Team Building, Process Design, Scrum (Software Development), Risk Management, Business Requirements, User Acceptance Testing (UAT), Business Valuation, Requirements Analysis, Project Management, Prioritization
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Power BI, Data Analysis Expressions (DAX), Data Transformation, Business Intelligence, Data Modeling, Interactive Data Visualization, Data Manipulation, Dashboard, Data Visualization Software, Microsoft Excel, SQL Server Reporting Services, Data Warehousing, Data Sharing, Data Integration
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Paid media, Marketing Materials, Instagram, Advertising, Social Media, Facebook, Social Media Campaigns, Social Media Marketing, Social Media Content, Digital Advertising, Content Creation, Copywriting, Campaign Management, Information Privacy, Target Audience, Data Collection, Brand Management
Beginner · Course · 1 - 3 Months

Universidad Nacional Autónoma de México
Skills you'll gain: R Programming, Statistical Programming, Ggplot2, Data Manipulation, Simulations, Statistical Software, Statistical Visualization, Visualization (Computer Graphics), Data Processing, Graphing, Programming Principles, Scripting, Exploratory Data Analysis, Data Structures, Software Installation, Package and Software Management
Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Prompt Engineering, Business Writing, Responsible AI, ChatGPT, Social Media Content, Marketing Automation, Business Marketing, Copywriting, Email Automation, Writing, Marketing Communications, Business Ethics, Brainstorming, Social Media, Content Creation, Content Strategy, Social Media Marketing, Business Communication
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Email Automation, Make.com, Google Gemini, Tool Calling, Calendar Management, Scheduling, Workflow Management, Data Ethics, JSON
Intermediate · Course · 1 - 3 Months

Stanford University
Skills you'll gain: Physics, Timelines, Verification And Validation, Scientific Methods, Research, Mechanics, Mathematical Modeling, Systems Of Measurement
Beginner · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Big Data, Apache Hadoop, Scalability, Data Processing, Data Science, Distributed Computing, Unstructured Data, Data Infrastructure, Data Analysis
Mixed · Course · 1 - 3 Months

Packt
Skills you'll gain: OSI Models, Computer Networking, Virtualization, Data Centers, General Networking, Network Architecture, Networking Hardware, Network Protocols, TCP/IP, Virtual Local Area Network (VLAN), Network Infrastructure, Local Area Networks, Network Model, Cloud Computing
Beginner · Course · 1 - 4 Weeks