Builders
Arrange the idea, then read why.
Each builder uses devices and steps already in the curriculum. A correct arrangement awards the same XP as a finished quiz, once.
Small network
Match each device to the job written on its card. The cards run from the computer toward the internet.
20 XP the first time
StartTCP handshake
Put the three messages of a reliable connection in order. Leave out anything that is not part of that exchange.
20 XP the first time
StartName lookup
Order what happens when a computer needs the address published for a name. Leave out the step that belongs to a different protocol.
20 XP the first time
Start