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, Operating System Administration, Linux Servers, Systems Administration, System Monitoring, Linux, Performance Tuning, File Management, Data Storage Technologies, Network Troubleshooting, Remote Access Systems, User Interface (UI), User Accounts, File Systems
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Marketing Strategies, Facebook, Web Analytics, Marketing Analytics, Social Media Marketing, Online Advertising, Business Marketing, Target Audience, Digital Marketing, Business Communication
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Equities, Balance Sheet, Financial Accounting, Corporate Finance, Financial Statements, Financial Analysis, Corporate Accounting, Financial Reporting, Accounting, Market Liquidity
Mixed · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Real Estate, Commercial Real Estate, Investments, Property and Real Estate, Risk Management, Portfolio Management, Accounting, Market Liquidity, Balance Sheet, Business Valuation, Return On Investment, Financial Statements, Financial Analysis, Case Studies
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: OAuth, Cloud Security, Authorization (Computing), Identity and Access Management, Google Cloud Platform, Proxy Servers
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: Responsible AI, Code Review, AI Security, Software Development Tools, Software Documentation, Collaborative Software, DevOps, AI Workflows, Generative AI Agents, Maintainability, Integrated Development Environments, CI/CD, Generative AI, Test Automation, Software Development, Software Technical Review, Software Architecture, Software Engineering, Artificial Intelligence and Machine Learning (AI/ML), AI Personalization
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Pinterest, Billing, Billing Systems, Advertising Campaigns, Advertising, Payment Processing, Payment Systems, Business Marketing, Social Media Marketing
Intermediate · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Apache Hadoop, Data Processing, Distributed Computing, Performance Tuning, Big Data, Software Architecture, Scalability
Intermediate · Course · 1 - 3 Months

HubSpot Academy
Skills you'll gain: Sales Presentation, Lead Generation, Prospecting and Qualification, Sales Strategy, Sales Process, Target Audience, Phone Sales, Customer Analysis, Customer Relationship Management (CRM) Software, Social Media Marketing, Communication Strategies, Personalized Service, Email Automation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Instagram, Social Media, Social Media Content, Social Media Marketing, Social Media Strategy, Facebook, Product Promotion, Promotional Strategies, Advertising, Branding
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Invoicing, Animations, LinkedIn, Promotional Strategies, Marketing, Price Negotiation, Sales Presentation, Social Media Content, Professional Networking, Business Development
Beginner · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Performance Tuning, Application Deployment, Configuration Management, Application Performance Management, UI Components, Virtual Environment, Server Side
Intermediate · Course · 1 - 3 Months