Arcitura Education S90.18 Exam - Topic 5 Question 133 Discussion

Question

As part of Service Composition A, a service consumer needs to authenticate itself to four different services. The Direct Authentication pattern was applied to each of these four services, all of which share the same identity store. This identity store is also shared by a number of additional services. As a result of increased usage, the identity store has become a performance bottleneck. The resulting performance degradation is impacting Service Composition A to the extent that it is causing problems. The security architecture for Service Composition A needs to be improved in order to avoid further performance degradation. However, any changes to the service composition architecture cannot break any dependencies with the existing service consumer. Which of the following approaches fulfills these requirements?

Sheridan · Accepted Answer

B) Introduce dedicated identity stores so that each service in the service composition has its own copy of the identity information. This way, dependencies with the existing service consumer are not broken

Sheridan · Answer

A) Apply the Brokered Authentication pattern so that SAML tokens can be issued by a centralized authentication broker. This way, the existing service consumer does not need to re-authenticate itself over and over again

Sheridan · Answer

C) Use a service agent between the four services and the centralized identity store in order to centralize the task of authentication. This way, load on the identity store is decreased and dependencies with the existing service consumer are not broken

Sheridan · Answer

D) None of the above