Hosts and a network boundary

A host sends or receives data. A router forwards traffic between
networks. A program running on a host is not another network device.
Use the Role and Where columns before interpreting the addresses.
The worked and activity segments below are separate fictional cases.

North desk lab. Original fictional card. These are not addresses from your computer.

Worked segment
Node    Role     IPv4            Where
desk    host     192.168.50.10   on the local segment
shelf   host     192.168.50.23   on the local segment
gate    router   192.168.50.1    connects this segment to other networks
remote  host     203.0.113.10    other network, documentation block TEST-NET-3

desk and shelf share the local segment. This card calls that segment the LAN.
remote is outside it. A packet from desk to remote crosses gate.
A text editor running on desk does not connect the segment to other networks.

Activity segment
Node    Role           IPv4            Where
lamp    host           192.168.40.10   on the local segment
bench   host           192.168.40.23   on the local segment
gate    router         192.168.40.1    connects this segment to other networks
press   print service  198.51.100.20   other network, documentation block TEST-NET-2
notes   text editor    none            a program on lamp, not a network device

Predict before reading the check. Check: press is outside lamp's local segment.