有关Service Based Architecuture(SBA)，一下描述正确的是（）

A.ebacd

B.debca

C.baecd

D.dbeca

A.Service based

B.Stateless NF

C.Network Slicing

D.C/U plane Separation

A.VLAN一Aware Bundle Service Interface

B.VLAN mapping Service Interface

C.VLAN Bundle Service Interface

D.VLAN一Based Service Interface

A.GPRS stands for General Packet Radio Service

B.GPRS is based on standard open interfaces

C.GPRS is based on ETSI standards

D.A new radio network has to be setupfor GPRS system。

A.Node SID

B.Adj SID

C.Anycast SID

D.Service based SID

You are creating a Windows Communication Foundation (WCF) service based on WSHttpBinding. New audit requirements dictate that callers must be authenticated on every call to ensure that their credentials have not been revoked.You need to ensure that the service will not cache the security request token. What should you do？（）

A. Apply a ServiceBehavior attribute to the service implementation class with the lnstanceContextMode property set to Single.

B. In the message security configuration, change clientCredentialType from lssuedToken to UserName

C. In the message security configuration, set establishSecurityContext to false.

D. At the end of every operation, call the SessionStateUtility.RaiseSessionEnd method.

175 Quality control charts show a characteristic of the product or service against:

A. the specification limits

B. customer requirements

C. control limits based on three standard deviations in each direction

D. control limits based on six standard deviations in each direction

E. A and D only

此题为判断题(对，错)。

ction among N (N＞=2) service access nodes and the devices on the user side.

A.to provide policy based routing

B.to provide class of service capabilities

C.to provide firewall filtering capabilities

D.to provide unified threat managment