A.System management tools

B.OA office system

C.Mobile APP

D.Corporate Portal

A.Asynchronous database. After the database client sends a data update request, the node that accepts the request will immediately return the result to the client. The updated data will be replicated and transmitted to other nodes in the cluster at a later time.

B.After synchronizing the database, the database client sends a data update request. The node that accepts the request will copy and transmit the updated data to other nodes in the cluster while returning the results to the client.

C.The two key points of a database cluster are: 1. It has two or more database server clusters. 2. It can provide transparent services.

D.Database clusters include two models: synchronous clusters and heterogeneous clusters.

A.2

B.3

C.1

D.4

A.VMware ESXI

B.XenServer

C.FusionAccess

D.FusionComputer

A.False

B.True