S90-09A - SOA Design & Architecture Lab Practice Test by Killexams.com

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**** S90-09A Description | S90-09A Syllabus | S90-09A Exam Objectives | S90-09A Course Outline ****



**** SAMPLE SOA Design & Architecture Lab 2021 Dumps ****

B. The Asynchronous Queuing pattern is applied so that a central messaging queue is
positioned between Service A and Service B and between Service A and Service C and so
that a separate messaging queue is positioned between Service A and Service Consumer A.
The Data Model Transformation and Protocol Bridging patterns are applied to enable
communication between Service A and Service B and between Service A and Service C .
The Redundant Implementation pattern is applied so that a copy of Service D is brought
in-house for fail-over purposes. The Legacy Wrapper pattern is further applied to wrap
Service D with a standardized service contract that is in compliance with the design
standards used in Service Inventory A. This wrapper utility service first attempts to access
the external service, but if that service is unavailable it will access the redundant internal
service instead.
C. The Reliable Messaging pattern is applied so that a system of acknowledgements is
established between Service Consumer A and Service A . This gives Service A the
flexibility to provide Service Consumer A with acknowledgements that indicate that the
processing steps that are occurring between Service A and Service B, Service C, and
Service D are progressing. The Asynchronous Queuing pattern is applied so that a central
messaging queue is positioned between Service A and Service B and between Service A
The Data Model Transformation and
and Service C and between Service A and Service D
Protocol Bridging patterns are applied to enable communication between Service A and
Service B and between Service A and Service C
D. None of the above.
Answer: B
QUESTION: 38
You are an architect with a project team building services for Service Inventory A . You
are told that no SLAs for Service B and Service C are available. You cannot determine
how available these services will be, but it has been confirmed that both of these services
support atomic transactions and the issuance of positive and negative acknowledgements.
However, you also find out that the services in Service Inventory B use different data
models than the services in Service Inventory A. Furthermore, recent testing results have
shown that the performance of Service D is steady and reliable. However, Service D uses a
different transport protocol than the services in Service Inventory A. The response time of
able to issue
Service A is not a primary concern, but Service Consumer A does need to be
request messages to Service A 24 hours a day without disruption. What steps can be taken
to fulfill these requirements?
A. The Event-Driven Messaging pattern is applied so that a subscriber-publisher
relationship is established between Service Consumer A and Service A . This gives
Service A the flexibility to provide its response to Service Consumer A whenever it is able
require that Service Consumer A remain
to collect the three data values without having to
that a central messaging queue is
stateful. The Asynchronous Queuing pattern is applied so
positioned between Service A and Service B and between Service A and Service C . The
Data Model Transformation and Protocol Bridging patterns are applied to enable
communication between Service A and Service B and between Service A and Service C .
56
The Service Autonomy principle is further applied to Service A in order to improve its
overall runtime behavioral predictability.
B. The Reliable Messaging pattern is applied so that a system of acknowledgements is
established between Service Consumer A and Service A . This gives Service A the
flexibility to provide Service Consumer A with acknowledgements that indicate that the
processing steps that are occurring between Service A and Service B, Service C, and
Service D are progressing. The Asynchronous Queuing pattern is applied so that a central
messaging queue is positioned between Service A and Service B and between Service A
and Service C and between Service A and Service D . The Redundant Implementation
pattern is applied so that a copy of Service D is brought in-Upon reviewing these
requirements it becomes D with a standardized service contract that is in compliance with
the design standards used in Service Inventory A.
C. The Asynchronous Queuing pattern is applied so that a central messaging queue is
positioned between Service A and Service B and between Service A and Service C and
between Service A and Service D and so that a separate messaging queue is positioned
between Service A and Service Consumer A. The Data Model Transformation pattern is
enable communication between Service A and Service B and between Service A
applied to
applied to enable communication between
and Service C . The Protocol Bridging pattern is
Service A and Service D
D. None of the above.
Answer: C
QUESTION: 39
Service A is an
orchestrated task service that is invoked by a separate composition initiator
(1) and then sends a request message to Service C (2). Service C queries Database B to
retrieve a large data record (3) and provides this data in a response message that is sent
back to Service A. Service A temporarily stores this data in a central state database (4) and
then sends a request message to Service D (5), which accesses a legacy system API to
retrieve a data value (6). Service D then sends this data value in a response message back
to Service A. The data in the state database is subsequently retrieved by Service A (7) and
merged with the newly received data value. This combined data is written to Database A
(8), which triggers an event that results in the invocation of Service B (9). Service B is an
orchestrated task service that sends a request message to Service D (10). which accesses a
legacy system API to retrieve a data value (11) and then sends this data value in a response
message back to Service B. Service B temporarily stores this data in a central state
database (12) and then sends a request message to Service E (13), which performs a
runtime calculation and then responds with the calculated data value back to Service B.
the state database is then retrieved by Service B (14) and merged with the
The data in
calculated data value. Service B then uses the merged data to complete its business task.
The following specific problems and requirements exist:
- Database B uses a proprietary data format that is compliant with the XML format
not
used by all of the services in this service composition architecture This incompatibility
needs to be solved in order to enable the described service message exchanges.
- The service contract provided by Service D does not comply with the data model
standards that were applied to the other services and therefore uses a different data model
57
to represent the same type of data that is exchanged. This incompatibility needs to be
solved in order to enable communication with Service D.
- Database B is a shared database that can be accessed by other services and applications
within the IT enterprise, which causes unpredictable runtime performance. This
performance problem needs to be solved in order to make the runtime behavior of Service
C more predictable.
- For performance and maintenance reasons, Service A and Service B need to be deployed
in the same physical environment where they can share a common state database.
Upon reviewing these requirements it becomes evident to you that the Enterprise Service
Bus compound pattern will need to be applied. However, there are additional requirements
that need to be fulfilled. To build this service composition architecture, which patterns that
is not associated with the Enterprise Service Bus compound pattern need to also be
applied? (Be sure to choose only those patterns that relate directly to the requirements
described above. Patterns associated with the Enterprise Service Bus compound pattern
include both the required or core patterns that are part of the basic compound pattern and
the optional patterns that can extend the basic compound pattern.)
A. Atomic Service Transaction
B. Compensating Service Transaction
C. Data Format Transformation
D. Data Model Transformation
E. Event-Driven Messaging
F. Intermediate Routing
G. Policy Centralization
H. Process Centralization
I. Protocol Bridging
J. Redundant Implementation
58
K. Reliable Messaging
L. Service Data Replication
M. State Repository
Answer: H, L, M
QUESTION: 40
Upon reviewing these requirements it becomes evident to you that the Orchestration
compound pattern will need to be applied. However, there are additional requirements that
need to be fulfilled. To build this service composition architecture, which patterns that is
not associated with the Orchestration compound pattern need to also be applied? (Be sure
to choose only those patterns that relate directly to
the requirements described above.
Patterns associated with the Orchestration compound pattern include both the required or
core patterns that are part of the basic compound pattern and the optional patterns that can
extend the basic compound pattern.)
A. Atomic Service Transaction
B. Compensating Service Transaction
C. Data Format Transformation
D. Data Model Transformation
E. Event-Driven Messaging
F. Intermediate Routing
G. Policy Centralization
H. Process Centralization
I. Protocol Bridging
J. Redundant Implementation
K. Reliable Messaging
L. Service Data Replication
M. State Repository
Answer: C, L
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