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: Data Manipulation, Data Transformation, Pivot Tables And Charts, Data Wrangling, Data Cleansing, Data Integration, R Programming, Data Preprocessing
Intermediate · Guided Project · Less Than 2 Hours

University of California, Santa Cruz
Skills you'll gain: Business Communication, Entrepreneurship, Social Media Marketing, Search Engine Optimization, Web Design and Development, Marketing, Workflow Management, Business Planning, E-Commerce, Project Management, Business Strategy, Business Process, Branding, Customer Relationship Management
Beginner · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Virtualization, Virtual Machines, Virtual Networking, Hyper-V, VMware ESX Servers, Cloud Infrastructure, Data Storage Technologies, Networking Hardware, IT Infrastructure, Data Centers, Desktop Support, Endpoint Security, Computer Hardware
Intermediate · Course · 1 - 3 Months

Skills you'll gain: AI Workflows, Salesforce, AI Security, Responsible AI, Data Ethics, AI Enablement, Customer Relationship Management, Generative AI, Predictive Modeling, Data Security, Data Modeling, Large Language Modeling
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Network Performance Management, Policy Development, Policy Analysis, Public Policies, Economics, Policy, and Social Studies, Business Economics, Socioeconomics, digital literacy, Telecommunications, Regulation and Legal Compliance, Technical Writing
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Apache Kafka, Real Time Data, Data Pipelines, Data Processing, Operational Databases, System Monitoring, Scalability, Performance Tuning, Configuration Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Oracle Databases, Operational Databases, Database Administration, Database Management, Database Architecture and Administration, Relational Databases, Data Storage Technologies, Performance Tuning, Database Management Systems, User Accounts, Disaster Recovery, Data Management, Data Storage, Role-Based Access Control (RBAC), Identity and Access Management, Authentications
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Spring Framework, Java, Dependency Analysis, Maintainability, Object Oriented Programming (OOP), Extensible Markup Language (XML), Software Design, Software Architecture, Testability
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Exploratory Data Analysis, Statistical Modeling, Regression Analysis, Data Visualization, Model Evaluation, Data Analysis, Statistical Methods, Scatter Plots, R Programming, Statistical Analysis, Plot (Graphics), R (Software), Ggplot2
Beginner · Guided Project · Less Than 2 Hours

O.P. Jindal Global University
Skills you'll gain: Digital Marketing, Web Analytics, Digital Advertising, Search Engine Marketing, Online Advertising, Google Analytics, Search Engine Optimization, Web Analytics and SEO, Google Ads, Marketing Channel, Social Media Marketing, Marketing Strategies, Keyword Research, Marketing Planning, Paid media, Marketing Analytics, Social Media, Advertising, Blogs, Emerging Technologies
Beginner · Course · 1 - 3 Months

Skills you'll gain: Microsoft 365, Data Integration, Report Writing, IT Automation
Intermediate · Course · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Ggplot2, Plot (Graphics), Data Visualization Software, Exploratory Data Analysis, Data Presentation, Data Storytelling, Scatter Plots, Tidyverse (R Package), R Programming, Box Plots, Histogram, Animations, Data Manipulation
Mixed · Course · 1 - 3 Months