Network Theory courses can help you learn about graph structures, connectivity, and network dynamics. You can build skills in analyzing complex systems, optimizing network performance, and understanding the spread of information or diseases. Many courses introduce tools like Python for network analysis, Gephi for visualization, and MATLAB for simulations, allowing you to apply these skills in practical work such as social network analysis, telecommunications, and epidemiology.

Coursera
Skills you'll gain: Hardening, Incident Response, Single Sign-On (SSO), Incident Management, Threat Management, Security Management, Security Controls, Continuous Monitoring, User Provisioning, Threat Detection, Enterprise Security, Event Monitoring, Identity and Access Management, Enterprise Application Management, IT Automation, Authentications
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft SQL Servers, SQL, Database Development, Database Software, Database Design, Database Theory, Stored Procedure, Databases, Relational Databases, Transact-SQL, Database Systems, Database Architecture and Administration, Query Languages, Data Integrity, Microsoft Development Tools, Scripting, Authentications, User Accounts
★ 4.9 (7) · Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Inside Sales, Sales, Sales Prospecting, Sales Training, Sales Strategy, Web Presence, Selling Techniques, Prospecting and Qualification, Product Demonstration, Virtual Teams, Digital Brand Strategy, Technical Sales, Sales Pipelines, Rapport Building, Sales Presentations, Relationship Building, Virtual Environment, Customer Engagement, Customer Success Management, Drive Engagement
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Test Automation, Test Data, Test Tools, Maintainability, Test Case, Business Process Automation, Test Execution Engine, Software Testing, Enterprise Application Management, Process Design, Automation, Case Studies, Business Reporting, Data Validation, No-Code Development, Business Process, Process Validation, Scalability, Code Reusability
Beginner · Course · 1 - 4 Weeks

Banco Interamericano de Desarrollo
Skills you'll gain: Digital Transformation, Cybersecurity, Data Management, Big Data, Talent Management, Human Capital, Interoperability, Technology Strategies, Analytics, Economics, Policy, and Social Studies, Data Security, Administration, Project Design, Public Policies, Data Governance, digital literacy, Policy Development, Public Administration, Process Improvement, Project Management
★ 4.8 (148) · Beginner · Specialization · 1 - 3 Months

Tsinghua University
Skills you'll gain: Data Structures, Algorithms, Theoretical Computer Science, Computer Programming, Computer Science
★ 3.1 (34) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Virtualization and Virtual Machines, Cloud Deployment, Network Troubleshooting, Hardware Troubleshooting, Cloud Computing, Cloud Infrastructure, Virtualization, Computer Hardware, Network Protocols, Cloud Platforms, Virtual Machines, General Networking, Desktop Support, Hardware Architecture, TCP/IP, Peripheral Devices, Wireless Networks, Mobile Security, USB, Microsoft Intune (Mobile Device Management Software)
★ 4.3 (12) · Intermediate · Specialization · 1 - 3 Months

KodeKloud
Skills you'll gain: Package and Software Management, Command-Line Interface, Linux Commands, Linux, Ubuntu, Linux Administration, File Systems, Linux Servers, Data Storage, Network Troubleshooting, Operating Systems, Red Hat Enterprise Linux, Data Storage Technologies, Remote Access Systems, Operating System Administration, System Support, Software Installation, File Management, Service Management, General Networking
★ 4.4 (22) · Beginner · Course · 1 - 3 Months

Edureka
Skills you'll gain: AI Security, Responsible AI, Data Ethics, LLM Application, Generative AI, Google Gemini, Artificial Intelligence, Cloud Security, Governance Risk Management and Compliance, Cyber Security Strategy, Security Strategy, Artificial Intelligence and Machine Learning (AI/ML), Computer Security Awareness Training, Network Security, Security Management, Cyber Attacks, Cyber Security Policies, Natural Language Processing, Risk Management, Supply Chain
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Transformation, Data Wrangling, Data Manipulation, Spreadsheet Software, Business Reporting, Financial Analysis, Financial Data, Data Import/Export, Data Cleansing, Excel Formulas, Microsoft Excel, Budget Management, Trend Analysis, Expense Management, Data Analysis, Financial Reporting, Pivot Tables And Charts, Variance Analysis, Descriptive Analytics, Budgeting
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Account Strategy, Sales Strategy, Sales Management, Sales, Regional Sales, General Sales Practices, Account Management, Overcoming Objections, Performance Measurement, Key Performance Indicators (KPIs), Leadership Studies, Sales Development, Revenue Forecasting, Performance Metric, Sales Process, Sales Pipelines, Sales Enablement, Predictive Analytics, Predictive Modeling, Advanced Analytics
Beginner · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Javascript and jQuery, jQuery, Responsive Web Design, Web Development, Version Control, Web Design, Cascading Style Sheets (CSS), Web Design and Development, Hypertext Markup Language (HTML), HTML and CSS, Web Frameworks, GitHub, Web Applications, Javascript, Web Development Tools, Git (Version Control System), Infrastructure Architecture, Network Architecture, Network Infrastructure, Application Frameworks
★ 4.6 (19) · Beginner · Course · 1 - 3 Months