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.

LearnQuest
Skills you'll gain: Consultative Approaches, Sales Training, Inside Sales, Market Opportunities, Selling Techniques, Closing (Sales), Regional Sales, General Sales Practices, Sales Enablement, Sales Management, Sales Operations, Business Development, Sales Prospecting, Personalized Campaigns, Active Listening, Drive Engagement, Negotiation, Proposal Development, Data Storytelling, Emotional Intelligence
Beginner · Specialization · 1 - 3 Months
LearnQuest
Skills you'll gain: Containerization, File I/O, Package and Software Management, Unified Modeling Language, Software Testing, Docker (Software), Development Environment, Unit Testing, Application Deployment, Plot (Graphics), Pandas (Python Package), Scripting, Data Modeling, DevOps, Data Persistence, Programming Principles, Python Programming, Scripting Languages, Data Structures, Computer Programming
Beginner · Specialization · 3 - 6 Months

Skillshare
Skills you'll gain: Network Model, 3D Assets, 3D Modeling, Visualization (Computer Graphics), Computer Graphics, Graphical Tools, Computer Graphic Techniques, Dataflow, Scalability, Debugging
Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Responsible AI, Agentic Workflows, Data Architecture, Cloud Security, Cloud Management, Digital Transformation, Data Governance, Cloud Storage, Google Cloud Platform, Data Strategy, Data Storage, Agentic systems, Cloud Infrastructure, Site Reliability Engineering, Data Warehousing, Cloud Platforms, Cloud Services, Service Level, Cloud Standards, Cloud Hosting
Beginner · Professional Certificate · 3 - 6 Months

Edureka
Skills you'll gain: Node.JS, Server Side, Web Servers, Back-End Web Development, Package and Software Management, Web Applications, Code Reusability, Javascript, JSON, Web Development, Event-Driven Programming, Development Environment, Application Programming Interface (API), File Systems, Maintainability, Operating Systems, API Testing, Network Routing, File I/O, Object Oriented Design
Beginner · Course · 1 - 4 Weeks

Sage Publications
Skills you'll gain: Sales Prospecting, Closing (Sales), Sales Presentation, Sales Process, Sales Management, Active Listening, Selling Techniques, Conflict Management, Customer Acquisition Management, Sales, Prospecting and Qualification, Account Strategy, Sales Strategy, General Sales Practices, Persuasive Communication, Customer Relationship Management, Customer Analysis, Sales Development, Ethical Standards And Conduct, Network Administration
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: COBOL (Programming Language), Job Control Language (JCL), IBM DB2, Mainframe Computing, Mainframe Technologies, Relational Databases, File I/O, File Management, Data Management, Database Theory, Databases, Database Management Systems, Data Storage, Data Access, Programming Principles, Command-Line Interface, Computer Programming
Beginner · Course · 1 - 3 Months

Skills you'll gain: Journey Mapping, Business Transformation, SAP S/4HANA, Technology Solutions, Technical Documentation, Relationship Building, Software As A Service, Consultative Approaches, Enterprise Architecture, ABAP RESTful Programming Model (RAP), Solution Architecture, Enterprise Resource Planning, System Design and Implementation, Project Implementation, Project Closure, Test Planning, Requirements Analysis, Stakeholder Communications, Project Management, Workforce Development
Beginner · Professional Certificate · 3 - 6 Months

Edureka
Skills you'll gain: Bash (Scripting Language), Shell Script, Unix Shell, Linux Commands, Scripting, Linux, Unix, Scripting Languages, Debugging, Unix Commands, Linux Administration, Command-Line Interface, IT Automation, Code Reusability, Data Validation, Security Engineering, IT Service Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Large Language Modeling, Artificial Intelligence and Machine Learning (AI/ML), MLOps (Machine Learning Operations), Artificial Intelligence, Cloud Management, Generative AI, AI Orchestration, Cloud Deployment, Infrastructure Architecture, Cloud Infrastructure, Cloud Computing, AI Workflows, Devops Tools, Data Infrastructure, AI literacy, Deep Learning, Information Technology Operations, Machine Learning, Network Infrastructure, Data Centers
Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Linux Administration, Red Hat Enterprise Linux, Linux, Package and Software Management, Linux Commands, Linux Servers, Unix Commands, Command-Line Interface, Systems Administration, Unix Shell, Network Troubleshooting, Operating Systems, Firewall, File Systems, Hardening, Authorization (Computing), IT Automation, Computer Networking, User Accounts, Network Protocols
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Threat Modeling, IT Security Architecture, Cloud Security, Internet Of Things, Vulnerability Management, Incident Response, Identity and Access Management, Threat Management, Computer Security Incident Management, Intrusion Detection and Prevention, Penetration Testing, Network Security, Security Controls, Security Testing, Cloud Computing, Threat Detection, Incident Management, Cloud Deployment, Authentications
Intermediate · Course · 1 - 4 Weeks