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.

Johns Hopkins University
Skills you'll gain: Computer Systems, Informatics, Data Processing, Computing Platforms, Health Informatics, Bioinformatics, Data Storage Technologies, Data Storage, Computer Literacy, Computer Hardware, Big Data, Data-Driven Decision-Making, Cloud Computing
★ 4.6 (16) · Beginner · Course · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: Model Optimization, Deep Learning, Tensorflow, Model Evaluation, Model Training, Artificial Neural Networks, Performance Tuning, Test Data, Machine Learning, Debugging, Algorithms
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: JSON, Javascript, JavaScript Frameworks, Software Testing, Unit Testing, Scripting, Frontend Performance, Event-Driven Programming, Hypertext Markup Language (HTML), Scripting Languages, Data Validation, Data Structures, Network Protocols, Verification And Validation
★ 3.8 (12) · Beginner · Course · 1 - 3 Months

Skills you'll gain: PyTorch (Machine Learning Library), Data Preprocessing, Transfer Learning, Fine-tuning, Model Training, Convolutional Neural Networks, Medical Imaging, Radiology, Image Analysis, Deep Learning, Python Programming
★ 4.4 (11) · Intermediate · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: Data Manipulation, Data Transformation, Pivot Tables And Charts, Data Wrangling, Data Cleansing, Data Integration, Tidyverse (R Package), R Programming, Data Quality, R (Software), Data Processing, Data Preprocessing
★ 4.6 (25) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Regional Sales, Benchmarking, Sales Training, Sales, Sales Pipelines, Competitive Intelligence, Sales Enablement, Marketing Automation, Market Intelligence, Trend Analysis, Sales Strategy, Sales Management, Sales Operations, Sales Development, Lead Generation, Digital Brand Strategy, Customer Relationship Management (CRM) Software, Automation, Social Media Management, Global Marketing
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Workflow Management, Project Management Software, Productivity Software, Data Integration, Systems Integration, Process Improvement, Process Management
Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Identity and Access Management, User Accounts, Role-Based Access Control (RBAC), Firewall, Nginx, Authorization (Computing), Virtual Networking, Network Administration, Network Security, Servers, Web Servers, Security Controls
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: Ansible, Red Hat Enterprise Linux, Package and Software Management, User Accounts, IT Automation, Software Installation, OS Process Management, Devops Tools, Linux Administration, File Systems, Linux Commands, Network Administration, Data Storage, Automation, Infrastructure as Code (IaC), YAML, Scripting, Linux, Linux Servers, System Configuration
Intermediate · Specialization · 1 - 4 Weeks

Skills you'll gain: Load Balancing, Scalability, Microservices, .NET Framework, Cloud Deployment, Database Management Systems, Redis, Application Performance Management, Software Design Patterns, Cloud Computing Architecture, Cloud Applications, Database Development, Databases, System Monitoring, Software Architecture, Distributed Computing, Cloud-Native Computing, Microsoft Azure, Performance Tuning
★ 4.9 (80) · Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Cyber Governance, ISO/IEC 27001, Continuous Monitoring, Compliance Management, Cyber Risk, Cyber Security Policies, Incident Response, Cloud Security, Cybersecurity, Data Governance, Computer Security Incident Management, Cloud Management, Security Controls, Cloud Standards, Risk Management Framework, IT Management, Information Privacy, Security Awareness
Intermediate · Course · 1 - 3 Months

L&T EduTech
Skills you'll gain: Electrical Power, Electric Power Systems, Simulation and Simulation Software, Energy and Utilities, Electrical Systems, Power Electronics, Simulations, Sustainable Technologies, Semiconductors, Scalability, Electrical Equipment, Environmental Issue, Emerging Technologies, Materials science, Cost Estimation, Matlab
★ 3.1 (7) · Beginner · Course · 1 - 3 Months