Final answer:
The statement is false. Updates to one zone in Cloud Spanner do not automatically update all other zones.
Step-by-step explanation:
The statement that when an update is made to one zone in Cloud Spanner, all other zones are also updated is false.
In Cloud Spanner, updates are made to individual replicas of a zone, not to all zones simultaneously. Cloud Spanner is a globally distributed database service, and it ensures strong consistency across replicas by using a distributed commit protocol.
Each zone in Cloud Spanner contains multiple replicas, and updates are made to a specific replica within a zone. These updates are then propagated to other replicas within the same zone, but they are not automatically propagated to replicas in other zones.