Packet Tracer courses can help you learn network simulation, device configuration, troubleshooting techniques, and the fundamentals of routing and switching. You can build skills in designing network topologies, analyzing traffic flow, and implementing security measures. Many courses introduce tools like Cisco Packet Tracer, which allows you to visualize and practice networking concepts in a hands-on environment, enhancing your ability to manage real-world networking challenges.

Cisco Learning and Certifications
Skills you'll gain: Cyber Threat Intelligence, Cyber Threat Hunting, Threat Detection, Vulnerability Assessments, Threat Management, Event Monitoring, Intrusion Detection and Prevention, Security Information and Event Management (SIEM), Computer Security Incident Management, Continuous Monitoring, Incident Response, Security Awareness, Security Management, Malware Protection, Network Security, Network Analysis, Network Monitoring
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Network Troubleshooting, Network Monitoring, Network Security, Firewall, Ansible, Network Performance Management, Network Infrastructure, Network Protocols, Security Controls, Event Monitoring, Puppet (Configuration Management Tool), IT Automation, Chef (Configuration Management Tool), Real Time Data, JSON, Automation, Identity and Access Management, Restful API, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Open Shortest Path First (OSPF), Virtual Local Area Network (VLAN), Wide Area Networks, Network Security, Routing Protocols, Threat Detection, Threat Management, Security Awareness, Network Administration, Multiprotocol Label Switching, Network Routing, Virtual Private Networks (VPN), Network Troubleshooting, Dynamic Host Configuration Protocol (DHCP), Network Switches, Local Area Networks, Network Protocols
Advanced · Course · 3 - 6 Months

Packt
Skills you'll gain: Vulnerability Scanning, Penetration Testing, Network Monitoring, Network Security, Vulnerability Assessments, Network Administration, Security Testing, Network Protocols, Network Analysis, TCP/IP, File Transfer Protocol (FTP), Network Infrastructure, Software Installation, Ubuntu, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Incident Response, Cyber Threat Intelligence, Computer Security Incident Management, Incident Management, Endpoint Detection and Response, Threat Detection, Threat Management, Cybersecurity, Security Information and Event Management (SIEM), Cyber Attacks, Cyber Security Assessment, Security Management, Disaster Recovery, Distributed Denial-Of-Service (DDoS) Attacks, Cyber Engineering, Digital Forensics, Security Testing, Cyber Governance, Network Security, Linux
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Vulnerability Assessments, Vulnerability Scanning, Network Protocols, Network Analysis, Network Monitoring, Image Analysis, Virtual Machines, Virtualization and Virtual Machines, Virtual Environment, Open Source Technology, Malware Protection, Command-Line Interface, Software Installation, File Management, Microsoft Windows
Intermediate · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Open Shortest Path First (OSPF), Network Support
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Leaflet (Software), Dashboard Creation, Geospatial Information and Technology, Global Positioning Systems, Geospatial Mapping, Internet Of Things, Systems Integration, Frontend Performance, Network Troubleshooting
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Metasploit, Brute-force attacks, System Configuration, General Networking, Network Security, Penetration Testing, Wireless Networks, Exploitation techniques, Intrusion Detection and Prevention, Linux, Vulnerability Scanning, Linux Commands, Encryption, Network Analysis, Software Installation, Virtual Machines
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Computer Security Incident Management, Network Analysis, Anomaly Detection, JSON
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: TCP/IP, OSI Models, General Networking, Networking Hardware, Computing Platforms, IT Automation, Network Administration, Network Model, Computer Networking, Network Engineering, Network Infrastructure, Scripting, Network Protocols, Restful API, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

The University of Notre Dame
Skills you'll gain: Communication Systems, Wireless Networks, Digital Communications, Telecommunications, General Networking, Digital Signal Processing, Electrical Engineering, Reliability
Beginner · Course · 1 - 3 Months