Oracle 11G OCP 1Z0-052 136

（136）You have two database servers SEMP and SACCT.

The database in the SEMP server maintains the employee information and the database in the SACCT server maintains the accounts payable information.

The employees submit the expense reports to the accounts payable department.

A user of the accounts payable database wants to extract the employee information from the database in the SEMP server for cross-verification.

Which schema object enables the user to access the information from the remote database?

A. Cluster

B. Database link

C. Mapping table

D. Materialized view 答案：（B）

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