Free Arcitura Education S90.18 Exam Practice Questions & Explanations

Last updated on: Aug 28, 2026
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Question 1

The application of the Service Autonomy principle is always negatively affected when applying the Data Confidentiality pattern together with the Data Origin Authentication pattern.

Answer Options
Correct Answer: B
Question 2

The application of the __________ pattern can eliminate the need for__________. However, the application of this pattern can also introduce increased dependency on __________ that can result in a single point of failure for multiple services.

Answer Options
Correct Answer: D
Question 3

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?

Answer Options
Correct Answer: B
Question 4

You are required to design an authorization mechanism for a REST service. The service provides functionality by providing access to different resources, some of which are local to the service while others are located on remote servers. You are required to restrict access to the service based on which resource is requested and which HTTP method has been specified by the service consumer. By doing so, which combination of action control rules needs to be used?

Answer Options
Correct Answer: C
Question 5

Which of the following are valid reasons for a certificate to be revoked:

Answer Options
Correct Answer: A, C, D