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.

University of California, Irvine
Skills you'll gain: Test Planning, Embedded Software, Embedded Systems, User Requirements Documents, Functional Specification, Functional Requirement, Systems Design, Requirements Analysis, Test Case, System Requirements, System Design and Implementation, Development Testing, System Testing, Prototyping, Program Development, Software Documentation, Hardware Architecture, Python Programming
★ 4.7 (957) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Disaster Recovery, Star Schema, Business Continuity Planning, Cost Benefit Analysis, Database Design, Business Continuity, Data Infrastructure, Snowflake Schema, Database Architecture and Administration, Relational Databases, Data Warehousing, Data Modeling, Data Architecture, Data Validation, SQL, Terraform, Infrastructure as Code (IaC), Extract, Transform, Load, Business Analytics, Cost Management
Advanced · Specialization · 3 - 6 Months

EDUCBA
Skills you'll gain: Enterprise Architecture, Stakeholder Management, Business Architecture, Stakeholder Engagement, Risk Management, Information Technology Architecture, Stakeholder Analysis, Enterprise Modeling, Stakeholder Communications, Data Architecture, Governance, Infrastructure Architecture, Gap Analysis, Business Transformation, Change Management, Information Systems
★ 4.5 (440) · Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Open Web Application Security Project (OWASP), Exploitation techniques, Authentications, Vulnerability Assessments, Application Security, Vulnerability Management, Event Monitoring, Security Controls, Data Integrity, Continuous Monitoring, Secure Coding, System Monitoring, Patch Management, Identity and Access Management, Multi-Factor Authentication, Authorization (Computing), Cryptography, Extensible Markup Language (XML), System Configuration, Incident Response
★ 4.5 (126) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Data Ethics, No-Code Development, Artificial Intelligence and Machine Learning (AI/ML), Model Deployment, Data Cleansing, Data Preprocessing, Artificial Intelligence, Data Quality, AI literacy, Human Computer Interaction, Business Solutions, Machine Learning, Data Wrangling, Business Metrics, Data Storytelling, Generative AI, Business Analytics, Data Validation, Dashboard, Automation
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Price Negotiation, Sales Management, Sales Operations, Selling Techniques, Sales, Account Strategy, Enterprise Sales, B2B Sales, Driving engagement, Inside Sales, Training and Development, Regional Sales, Customer Engagement, Marketing Automation, LinkedIn, Drive Engagement, Key Performance Indicators (KPIs), AI Personalization, Personalized Campaigns, Video Production
Beginner · Specialization · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Magnetic Resonance Imaging, Medical Imaging, Image Analysis, Data Manipulation, R (Software), Neurology, R Programming, Radiology, Image Quality, Data Processing, Software Visualization, Scientific Visualization, Data Preprocessing, Data Transformation, Data Import/Export, Package and Software Management
★ 4.6 (316) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: TikTok, Video Production, Photo/Video Production and Technology, Content Creation, Content Scheduling, Web Analytics and SEO, Photography, Content Development and Management, Social Media Campaigns, Social Media Marketing, Content Performance Analysis, Social Media Content, Driving engagement, Social Media, Search Engine Optimization, Video Editing, Videography, Brand Marketing, Social Media Analytics, Visual Storytelling
★ 3.9 (52) · Beginner · Professional Certificate · 3 - 6 Months
DeepLearning.AI
Skills you'll gain: Fine-tuning, Model Training, Model Evaluation, Climate Change Adaptation, Applied Machine Learning, Image Analysis, Environmental Monitoring, Convolutional Neural Networks, Artificial Intelligence, Climate Change Mitigation, Artificial Neural Networks, Environmental Issue, Machine Learning Methods, Data Processing, Forecasting, Computer Vision, Predictive Modeling, Supervised Learning
★ 4.8 (144) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Control Systems, Programmable Logic Controllers, Animations, Human Machine Interfaces, UI Components, Real-Time Operating Systems, Visualization (Computer Graphics), Control Panels, Interactive Design, User Interface (UI), Code Reusability, Program Development, Simulations, Interactive Data Visualization, Automation Engineering, Machine Controls, Computer Hardware, Electrical Wiring, Computational Logic, Network Troubleshooting
★ 4.7 (42) · Intermediate · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Stored Procedure, PL/SQL, SQL, Database Design, Database Management, Query Languages, Database Management Systems, Data Access, Databases, Database Systems, Java, Java Programming, JUnit
★ 4.3 (10) · Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Responsible AI, HR Tech, Human Resources Management and Planning, Employee Engagement, Human Resources, Human Resource Management, Generative AI, Data Ethics, People Analytics, Talent Recruitment, Talent Acquisition, Human Resource Strategy, Recruitment, Trend Analysis, Employee Training, Employee Retention, Workforce Development, Workforce Planning, AI Security, Training Programs
★ 4.3 (254) · Beginner · Course · 1 - 4 Weeks