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: Hardening, Remote Access Systems, Linux Servers, Linux Administration, Linux, Linux Commands, Authentications, Security Controls, Cryptographic Protocols, Key Management, Public Key Infrastructure, Package and Software Management, Software Installation
Beginner · Course · 1 - 4 Weeks

Pearson
Skills you'll gain: Network Troubleshooting, TCP/IP, Routing Protocols, Network Routing, Open Shortest Path First (OSPF), Network Support, Network Routers, Network Administration, General Networking, System Configuration, Network Planning And Design, Network Protocols, Command-Line Interface
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Data-Driven Marketing, Email Marketing, A/B Testing, Campaign Management, Performance Analysis, Data-Driven Decision-Making, Email Automation, Test Planning
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Data Wrangling, Exploratory Data Analysis, Tidyverse (R Package), Data Manipulation, Data Transformation, R Programming, R (Software), Data Processing, Data Preprocessing, Data Analysis, Statistical Programming, Text Mining, Correlation Analysis
★ 4.6 (34) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Marketing Analytics, Data-Driven Marketing, Analytics, Marketing, Meta Ads Manager, Data Analysis, Resource Utilization, Statistical Analysis, Marketing Effectiveness, Registration, Digital Marketing, Social Media Marketing
★ 4.5 (10) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Blockchain, Secure Coding, Security Testing, Security Architecture Review, Legal Technology, Vulnerability Assessments, Program Development, Software Development Tools, Code Reusability, Object Oriented Programming (OOP), Data Integration, Development Testing, Application Deployment, Emerging Technologies
Beginner · Course · 1 - 4 Weeks

O.P. Jindal Global University
Skills you'll gain: Digital Marketing, Web Analytics, Digital Advertising, Search Engine Marketing, Digital Marketing Campaigns, Digital Analysis, Online Advertising, Digital Marketing Tools, Google Analytics, Search Engine Optimization, Web Analytics and SEO, Google Ads, Marketing Channel, Social Media Marketing, Marketing Strategies, MarTech, Marketing Planning, Paid media, Marketing Analytics, Social Media Campaigns
★ 4.2 (13) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Tensorflow, Model Deployment, Keras (Neural Network Library), Data Pipelines, Google Cloud Platform, Model Training, Model Optimization, Cloud Deployment, Deep Learning, Data Preprocessing, Applied Machine Learning, Scalability, Artificial Neural Networks, Data Transformation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Logo Design, Canva (Software), Video Production, Photo/Video Production and Technology, Graphic and Visual Design Software, Graphical Tools, Graphic Design, Graphic and Visual Design, Content Creation, Design, Creative Design, Social Media Marketing
★ 4.8 (20) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Meta Ads Manager, Facebook, Marketing Budgets, Paid media, Content Scheduling, Social Media Strategy, Social Media Management, Social Media Marketing, Advertising Campaigns, Social Media, Online Advertising, Budget Management, Budgeting, Advertising, Business Strategy
★ 4.4 (12) · Intermediate · Guided Project · Less Than 2 Hours

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

Simplilearn
Skills you'll gain: Blogs, Performance Analysis, Content Performance Analysis, Performance Measurement, Content Scheduling, Content Development and Management, Performance Metric, Performance Improvement, Social Media Content, Social Media Marketing, Content Creation, WordPress, Promotional Strategies, Content Marketing, Content Management Systems, Web Presence, Email Marketing, Workflow Management, Content Management, Drive Engagement
★ 3.3 (9) · Beginner · Course · 1 - 4 Weeks