Data transmission & network infrastructure — how data moves across wired and wireless networks.
Dual-WAN edge router simulator — path monitoring, failure detection delay, route installation and preemptive restoration control outage duration.
Optical link-budget simulator — launch power, fiber attenuation, connector/splice loss and bend loss determine received power and receiver margin.
Stateful firewall appliance simulator — ordered rule evaluation, TCP handshake tracking and idle timeout decide whether traffic is allowed.
Four-port Ethernet switch simulator — source learning, unknown-unicast flooding, broadcast forwarding and dynamic-entry aging.
Trace enterprise, industrial DMZ and OT zone traffic across a firewall, jump host and PLC.
Elect a root bridge and watch port roles reorganize to remove a Layer 2 forwarding loop.
Trace 802.1Q trunk tagging, VLAN pruning and native VLAN mismatches across two switches.
Model an 802.11 access point and client through association, SNR and shared-airtime throughput.