A.Recovery Point Objective

B.Restore Point Objective

C.Recover Plan Objective

D.Return Purchase Order

A.TRUE

B.FALSE

A.For host layer disaster recovery, host layer replication will occupy certain host resources, which will affect the application system

B.The initial construction cost of network layer disaster recovery is relatively low, and many manufacturers can provide solutions

C.Array layer disaster recovery, the arrays at both ends must be products of the same manufacturer, unable to solve the heterogeneous problem

D.Host layer disaster recovery is implemented on the host side, without considering the compatibility between the underlying devices

A.TRUE

B.FALSE

A.Decentralized management

B.Difficult resource sharing

C.Large investment

D.Poor scalability