| Subject | Welsh | English |
| comp., MS | topoleg ddyblyg | replication topology (In Active Directory replication, the set of connections that domain controllers use to replicate information among themselves) |
| comp., MS | topoleg set ddyblyg | replica set topology (The order in which changes are propagated from replica to replica. Topology determines how quickly changes in another replica appear in your replica) |
| comp., MS | topoleg y gweinydd | server topology (A graphical depiction of the configuration or arrangement of (usually conceptual) servers, including connecting lines) |