A.The IToIP solution embodies the core idea of SOA .

B.SOA is based on the network, eliminates the information gap caused by heterogeneous systems, integrates various services such as storage, security, and multimedia, and realizes the componentization and resourceization of IT infrastructure.

C.IToIP allows flexible, fast and efficient construction of enterprise intelligent applications, and can quickly adapt to changes in enterprise business processes.

D.SOA solutions to the requirements of IT infrastructure integration, unified web-based technology to build IT infrastructure platform.

A.Table shows the server needs UA transmit authentication information, UA after receiving the response, it would Laid own authentication information registration request sent by a second server to register

B.UA has been registered on the registration server normally

C.Table showing UA sends a request message packet server sets the field do not know, but it has been ignored server, UA still successfully registered

D.Table shows UA request message sent by the server contains the fields do not know, registration failed

A.Li ie the called UA sent BE message

B.No law have requested revocation

C.Li ie the called UA sent Back message

D.Li ie the called UA send Cancel message

A.IP access method

B.WEB access method

C.HTTP access method

D.TCP access method

A.mesh network layer

B.business service layer

C.shall by layer

D.service service layer