Block 3 - Building Community in the Classroom. Learning how to work effectively in a team is a vocational skill desired by our students. Many service learning exercises and projects lend themselves to teamwork. If your project includes group work, you should include a component of team building in your plan.
The final edition took twelve more years to develop, culminating in Internet Standard #8 in 1983, three years after the final TCP specification was ratified (STD #7), even though TCP work began later, in 1973. Arguably, Telnet even predates internetworking and the modern IP packet and TCP transport layers.
To be noted 192.168.81.0/24 is the IP subnet of connected interface 0/1. So I would choice 3 as the possible answer the two local connected LAN interfaces + remote IP subnet 192.168.90.0/24 (but it could be associated to a loopback or to a serial interface so there is no 100% security it is a broadcast domain).