Original fictional zone card for lab.invalid. This card is not a dig transcript.
Names use the .invalid suffix. Addresses are documentation values.

Worked names
Name                Type   Data
note.lab.invalid    A      192.0.2.10
note.lab.invalid    AAAA   2001:db8::10
alias.lab.invalid   CNAME  note.lab.invalid

alias.lab.invalid holds only the CNAME. The address records sit on note.lab.invalid.
A resolver asks. The server that is authoritative for lab.invalid publishes this zone.
A cached copy can be older than this card. No TTL was measured, so none is printed.