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.

Packt
Skills you'll gain: PostgreSQL, Operational Databases, SQL, Database Management, Transaction Processing, Data Maintenance, Database Systems, Stored Procedure, Performance Tuning, Databases, Database Architecture and Administration, Query Languages, Data Migration, PL/SQL, Relational Databases, Database Development, Data Management, JSON, Database Management Systems, Operating System Administration
Intermediate · Specialization · 3 - 6 Months

Northeastern University
Skills you'll gain: Algorithms, Theoretical Computer Science, Data Structures, Computational Thinking, Analysis, Performance Tuning, Memory Management, Scalability
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Facebook, Content Scheduling, Social Media Management, Social Media Content, Social Media, Digital Publishing, Social Media Marketing, Content Creation, Web Presence, Driving engagement, Scheduling, Drive Engagement, Photo/Video Production and Technology, Shared Media, Live Streaming, Cross-Channel Marketing, Android Studio
Beginner · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: Marketing Materials, Marketing Design, Typography, Graphic and Visual Design Software, Graphic Design, Promotional Materials, Advertising, Graphic and Visual Design, Design, Content Creation, Marketing, Social Media Content, Social Media Marketing, Gmail
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Java, Java Programming, Object Oriented Programming (OOP), Spring Boot, Hibernate (Java), Object Oriented Design, Spring Framework, Object-Relational Mapping, Database Management, Computer Programming, Web Development, Authorization (Computing), Database Development, Restful API, Role-Based Access Control (RBAC), Authentications, Debugging, Programming Principles, Development Environment
Beginner · Course · 3 - 6 Months

Alex Genadinik
Skills you'll gain: Social Media Marketing, Copywriting, Social Media, Social Media Management, Social Media Strategy, Social Media Content, Advertising Campaigns, Digital Marketing Tools, Marketing, Online Advertising, Advertising, Professional Networking, Social Media Campaigns, Digital Advertising, Driving engagement, Content Creation, Branding, Drive Engagement
Mixed · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Cloud Security, Encryption, Cloud Computing, Data Security, Cyber Threat Intelligence, Cloud Infrastructure, Cloud Management, Cybersecurity, Security Controls, Network Security, Infrastructure Security, Public Cloud, Authentications, Computer Security, Google Cloud Platform, Distributed Denial-Of-Service (DDoS) Attacks, Authorization (Computing), Data Storage, Identity and Access Management, Data Centers
Beginner · Course · 1 - 3 Months

Pearson
Skills you'll gain: Linux Servers, User Accounts, Linux Administration, Lightweight Directory Access Protocols, User Provisioning, Linux, Group Policy, Server Administration, Servers, Operating System Administration, Performance Tuning, Systems Administration, System Configuration, Identity and Access Management, Open Source Technology, Performance Testing, Linux Commands, Command-Line Interface, Firewall, Authentications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Google Cloud Platform, Cloud Applications, Kubernetes, Cloud Hosting, Cloud Computing, Cloud Platforms, Cloud Management, Cloud Services, Cloud Security, Cloud Deployment, Terraform, Virtual Private Networks (VPN), Application Deployment, Infrastructure as Code (IaC), Cloud Storage, Network Administration, Virtual Machines, Dataflow, General Networking, Containerization
Intermediate · Course · 1 - 3 Months

AI CERTs
Skills you'll gain: Policy Development, Environmental Policy, Cyber Governance, Regulation and Legal Compliance, Policy Analysis, Research, and Development, Regulatory Requirements, Governance, Data Governance, Public Policies, Risk Management, Artificial Intelligence, Regulatory Compliance, AI Integrations, Policy Analysis, Strategic Leadership, Artificial Intelligence and Machine Learning (AI/ML), Governance Risk Management and Compliance, Generative AI Agents, Generative AI, Decision Making
Beginner · Course · 1 - 3 Months

Skills you'll gain: Model Deployment, Cloud-Native Computing, Application Deployment, Containerization, Security Controls, Kubernetes, IBM Cloud, MLOps (Machine Learning Operations), Cloud Computing, Endpoint Security, Applied Machine Learning, Computing Platforms, Enterprise Application Management, Continuous Deployment, Cloud Infrastructure, Docker (Software), DevOps, General Networking, Software Design, Software Development
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Instagram, Content Scheduling, Drive Engagement, Driving engagement, Social Media Management, Social Media Content, Social Media, Social Media Marketing, Social Media Strategy, Customer Engagement, Content Creation, Content Strategy, Content Management
Beginner · Course · 1 - 4 Weeks