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.

Coursera
Skills you'll gain: Law, Regulation, and Compliance, General Data Protection Regulation (GDPR), Regulatory Compliance, Information Privacy, Personally Identifiable Information, Data Ethics, Compliance Management, Responsible AI, Compliance Auditing, Governance Risk Management and Compliance, Analytical Skills, Gap Analysis, Prioritization
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Real-Time Operating Systems, Embedded Software, Embedded Systems, Telecommunications, Digital Signal Processing, Communication Systems, Performance Tuning, Digital Communications, System Programming, Debugging, Network Performance Management, Fine-tuning, C (Programming Language), Real Time Data, Systems Design, Software Architecture
Advanced · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Tidyverse (R Package), Data Wrangling, R (Software), Data Cleansing, Data Transformation, Data Manipulation, R Programming, Data Science, Exploratory Data Analysis, Data Analysis, Data Management, File Management, Data Visualization
★ 4.4 (54) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Linux Administration, Virtualization and Virtual Machines, Linux, Performance Tuning, Linux Servers, Virtualization, IBM Cloud, Data Storage, Data Storage Technologies, Hybrid Cloud Computing, Hardening, AI Enablement, Security Controls, Mainframe Computing, Hardware Architecture, Infrastructure Architecture, Virtual Networking, Mainframe Technologies, Networking Hardware, Artificial Intelligence and Machine Learning (AI/ML)
★ 4.6 (34) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Inventory Control, Key Performance Indicators (KPIs), Performance Reporting, Performance Metric, Performance Analysis, Supply Management, Performance Measurement, Operations Management, Health Administration, Health Care Administration, Supply Chain Planning, Operational Efficiency, Organizational Structure
Beginner · Course · 1 - 4 Weeks

John Wiley & Sons
Skills you'll gain: AI Security, Responsible AI, Business Ethics, Data Ethics, Ethical Standards And Conduct, Information Privacy, Decision Intelligence, Accountability Frameworks, Artificial Intelligence, AI literacy, Accountability, Law, Regulation, and Compliance, Business, Governance, Artificial Intelligence and Machine Learning (AI/ML)
Intermediate · Course · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Database Administration, Database Architecture and Administration, Database Systems, Database Management, Database Management Systems, Databases, Operational Databases, Data Maintenance, Database Design, Data Management, Data Integrity, Data Security, SQL, Data Validation, System Monitoring, Security Controls, Performance Tuning, Query Languages, Disaster Recovery, Data Science
Intermediate · 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

Google Cloud
Skills you'll gain: No-Code Development, Cloud Applications, Application Performance Management, Application Development, Security Controls, Authorization (Computing), Authentications, Application Lifecycle Management, Web Services, Data Management, Application Programming Interface (API), Restful API, Role-Based Access Control (RBAC), Data Access, Application Security, Software Versioning, Automation, Debugging
★ 4.7 (22) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Storytelling, Storytelling, Data Presentation, Strategic Prioritization, User Research, Data-Driven Decision-Making, Persona Development, Stakeholder Communications, Prioritization, Analytics, Presentations, Stakeholder Engagement, Stakeholder Management, Strategic Decision-Making, Strategic Communication, Quantitative Research
Intermediate · Course · 1 - 4 Weeks

Splunk Inc.
Skills you'll gain: Splunk, Dashboard Creation, Dashboard, Incident Management, Information Management, Computer Security Incident Management, Event Monitoring, Query Languages, Business Intelligence, Data Management, Data Analysis, Big Data, Business Analytics
★ 4.8 (28) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Energy and Utilities, Electrical Wiring, Electrical Systems, Electric Power Systems, Electrical Power, Infrastructure Architecture, Basic Electrical Systems, Electrical Equipment, Power Electronics, Interoperability
★ 4.1 (32) · Beginner · Course · 1 - 4 Weeks