Practice
Networking & Systems.
Practice network protocols, firewalls, WiFi/SD-WAN, carrier routing, systems and cybersecurity.
Learning mode · No timer, an explanation after each answer, and “I don't know” when needed: learn as you play.
Network protocols
TCP/IP, DNS, DHCP, VLAN and the OSI model.
Cisco IOS
IOS commands, switch and router configuration.
Network Vendors
Huawei, MikroTik, Arista, Extreme Networks, ALE/Barracuda: vendor CLIs and architectures.
Fortinet FortiGate
FortiGate firewall, policies and VPN.
Stormshield
Stormshield firewall, rules and monitoring.
Advanced NGFW Firewalls
Palo Alto, Check Point, SonicWall, Sophos, WatchGuard: next-gen firewall architectures and CLIs.
WiFi & Access Points
Ubiquiti, Ruckus, Cisco Meraki, Juniper Mist, WiFi 6/6E: enterprise wireless architectures and management.
SD-WAN & SASE
VMware VeloCloud, Cato Networks, Zscaler, Aryaka: SD-WAN architectures and SASE convergence.
Advanced Routing & Carrier QoS
Nokia SROS, IS-IS, MPLS, advanced BGP, DSCP/MQC QoS: routing as used by telecom carriers.
Linux
System administration, commands and permissions.
PowerShell / Bash
Windows/Linux scripting and automation.
Infrastructure & DevOps
Docker, Kubernetes, Terraform, Ansible, VXLAN: modern infrastructure from a networking and automation angle.
Advanced Cybersecurity
SIEM, EDR, CVE/CVSS, Zero Trust, OWASP: advanced operational security concepts and tools.
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