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An ERP vendor is asked to supply a system where one software instance serves many client companies, with each client's data logically separated. What is this architecture called?

This is multi-tenant architecture, in which one software instance serves several client companies while keeping each tenant's data logically separated. It lowers cost through sharing, unlike single-tenant setups where each customer gets a dedicated instance.

  1. AMulti-tenant architectureCorrect
  2. BSingle-tenant architecture
  3. CClient-server two-tier architecture
  4. DMainframe batch architecture

Explanation

Multi-tenancy means a single instance of the application serves multiple customers, called tenants, with logical data isolation. Single-tenant gives each client a dedicated instance. The other options describe different architectural styles unrelated to shared instances.

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