Advanced SOA Design & Architecture - S90.08 Exam Practice Test

Question 1

Legacy systems often rely upon a combination of proprietary data models, proprietary data
formats, and proprietary transport protocols. For this reason the Legacy Wrapper pattern is
often used together with which of the following patterns?

A. Service Messaging

B. Atomic Service Transaction

C. Messaging Metadata

D. Service Broker

Correct Answer: D

Question 2

The application of the Redundant Implementation pattern helps increase the autonomy of:

A. core service logic contained within services that do not rely on the redundantly deployed
service

B. service agents that perform load-balanced access to services that are not redundantly deployed C.
compositions that compose redundantly deployed services

C. redundantly deployed services

Correct Answer: A,C

Question 3

Which pattern aims to increase the autonomy of a service specifically via the use of a
replicated database?

A. Stateful Services

B. Redundant Implementation

C. None of the above.

D. State Repository

Correct Answer: C

Question 4

In the message exchange framework established by the application of the Reliable
Messaging pattern, what roles are typically fulfilled by service agents?

A. service agents can load balance messages

B. service agents can process negative acknowledgements

C. service agents can route messages based on their content

D. service agents can process positive acknowledgements

Correct Answer: B,D

Question 5

Load balancing is commonly associated with which pattern?

A. Atomic Service Transaction

B. Service Broker

C. Decoupled Contract

D. Intermediate Routing

Correct Answer: D

Question 6

A service agent has a technical contract that allows it to be explicitly invoked by service
consumer programs.

A. True

B. False

Correct Answer: B

Question 7

The application of the Protocol Bridging pattern helps overcome disparity between:

A. policy protocols

B. transaction protocols

C. messaging protocols

D. transport protocols

Correct Answer: C,D

Question 8

Which of the following statements is false?

A. The Messaging Metadata pattern can support the application of patterns such as
Intermediate Routing by supplementing messages with activity-specific metadata.

B. The Messaging Metadata pattern is not applicable to situations where the message
sender and receiver need to participate in stateful or conversational message exchanges.

C. Widespread use of the Messaging Metadata pattern can be seen in the emergence of
many WS-* extensions that define industry standard SOAP header blocks that carry
metadata.

D. Messaging frameworks and technologies need to provide support for the reading and
writing of message headers or properties in order to fully support the application of the
Messaging Metadata pattern.

Correct Answer: B

Question 9

Even though atomic service transactions can be used to ensure that all services within the
transaction either succeed or fail, in larger transactions involving multiple services, the
amount of required memory consumption can ___________.

A. None of the above.

B. be deferred to a compensating service transaction

C. add up and reduce overall service scalability

D. be minimized through the use of service agents

Correct Answer: C

Question 10

The Messaging Metadata pattern requires a messaging framework that supports the
processing of messages with headers or properties.

A. True

B. False

Correct Answer: A

SOA Advanced SOA Design & Architecture - S90.08 Exam Practice Test

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