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Code d'Examen: S90-09A
Nom d'Examen: SOA Certified Professional (SOA Design & Architecture Lab)
Questions et réponses: 40 Q&As

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NO.1 Service A is an entity service with a functional context dedicated to invoice-related processing. Service
B is a utility service that provides generic data access to a database.
In this service composition architecture, Service Consumer A sends a SOAP message containing an
invoice XML document to Service A (1). Service A then sends the invoice XML document to Service B (2),
which then writes the invoice document to a database.
The data model used by Service Consumer A to represent the invoice document is based on XML
Schema A. The service contract of Service A is designed to accept invoice documents based on XML
Schema B. The service contract for Service B is designed to accept invoice documents based on XML
Schema A. The database to which Service B needs to write the invoice record only accepts entire
business documents in Comma Separated Value (CSV) format.
Due to the incompatibility of the XML schemas used by the services, the sending of the invoice document
from Service Consumer A through to Service B cannot be accomplished using the services as they
currently exist. Assuming that the Contract Centralization pattern is being applied and that the Logic
Centralization is not being applied, what steps can be taken to enable the sending of the invoice
document from Service Consumer A to the database without adding logic that will increase the runtime
performance requirements of the service composition?
A.Service Consumer A can be redesigned to use XML Schema B so that the SOAP message it sends is
compliant with the service contract of Service A. The Data Model Transformation pattern can then be
applied to transform the SOAP message sent by Service A so that it conforms to the XML Schema A used
by Service B. The Standardized Service Contract principle must then be applied to Service B and Service
Consumer A so that the invoice XML document is optimized to avoid unnecessary validation.
B.The service composition can be redesigned so that Service Consumer A sends the invoice document
directly to Service B. Because Service Consumer A and Service B use XML Schema A, the need for
transformation logic is avoided. This naturally applies the Service Loose Coupling principle because
Service Consumer A is not required to send the invoice document in a format that is compliant with the
database used by Service B.
C.Service Consumer A can be redesigned to write the invoice document directly to the database. This
reduces performance requirements by avoiding the involvement of Service A and Service B. It further
supports the application of the Service Abstraction principle by ensuring that Service Consumer A hides
the details of the data access logic required to write to the database.
D.None of the above.
Answer:B

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NO.2 The Client and Vendor services are agnostic services that are both currently part of multiple service
compositions. As a result, these services are sometimes subjected to concurrent access by multiple
service consumers.
The Client service is an entity service that primarily provides data access logic to a client database but
also provides some calculation logic associated with determining a client's credit rating. The Vendor
service is also an entity service that provides some data access logic but can also generate various
dynamic reports.
After reviewing historical statistics about the runtime activity of the two services, it was discovered that the
majority of concurrent runtime access is related to the processing of business rules. With the Client
service, it is the calculation logic that is frequently required and with the Vendor service it is the dynamic
reporting logic that needs to be accessed separately from the actual report generation.
Currently, due to the increasing amount of concurrent access by service consumers, the runtime
performance of both the Client and Vendor services has worsened and has therefore reduced their
effectiveness as service composition members. What steps can be taken to solve this problem without
introducing new services?
A.The Rules Centralization pattern can be applied by extracting the business rule logic from the Client
and Vendor services and placing it into a new Rules service. This will naturally improve the runtime
performance of the Client and Vendor services because they will no longer be subjected to the high
concurrent access of service consumers that require access to the business rules logic.
B.The Redundant Implementation pattern can be applied to the Client and Vendor services, thereby
establishing duplicate implementations that can be accessed when a service reaches its runtime usage
threshold. The Intermediate Routing pattern can be further applied to provide load balancing logic that
can, at runtime, determine which of the redundant service implementations is the least busy for a given
service consumer request.
C.The Rules Centralization pattern can be applied together with the Redundant Implementation pattern to
establish a scalable Rules service that is redundantly implemented and therefore capable of supporting
high concurrent access from many service consumers. The Service Abstraction principle can be further
applied to hide the implementation details of the Rules service.
D.None of the above.
Answer:B

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NO.3 Service A is an entity service with a functional context dedicated to invoice-related processing. Service
B is a utility service that provides generic data access to a database.
In this service composition architecture, Service Consumer A sends a SOAP message containing an
invoice XML document to Service A (1). Service A then sends the invoice XML document to Service B (2),
which then writes the invoice document to a database.
The data model used by Service Consumer A to represent the invoice document is based on XML
Schema A. The service contract of Service A is designed to accept invoice documents based on XML
Schema B. The service contract for Service B is designed to accept invoice documents based on XML
Schema A. The database to which Service B needs to write the invoice record only accepts entire
business documents in Comma Separated Value (CSV) format.
Due to the incompatibility of XML schemas used by the services, the sending of the invoice document
from Service Consumer A through to Service B cannot be accomplished using the services as they
currently exist. Assuming that the Contract Centralization and Logic Centralization patterns are being
applied, what steps can be taken to enable the sending of the invoice document from Service Consumer A
to the database without adding logic that will increase the runtime performance of the service
composition?
A.The Data Model Transformation pattern can be applied so that the invoice document sent by Service
Consumer A is transformed into an invoice document that is compliant with the XML Schema B used by
Service A. The Data Model Transformation pattern can be applied again to ensure that the invoice
document sent by Service A is compliant with XML Schema A used by Service B.
B.The service composition can be redesigned so that Service Consumer A sends the invoice document
directly to Service B. Because Service Consumer A and Service B use XML Schema A, the need for
transformation logic is avoided. This naturally applies the Service Loose Coupling principle because
Service Consumer A is not required to send the invoice document in a format that is compliant with the
database used by Service B.
C.The Standardized Service Contract principle can be applied to the service contract of Service A so that
it is redesigned to use XML Schema A. This would make it capable of receiving the invoice document from
Service Consumer A and sending the invoice document to Service B without the need to further apply the
Data Model Transformation pattern.
D.None of the above.
Answer:C

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Code d'Examen: S90-03A
Nom d'Examen: SOA Certified Professional (SOA Design & Architecture)
Questions et réponses: 100 Q&As

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NO.1 Which of the following statements is false.? Select the correct answer.
A. A sub-controller capability is responsible for composing nested composition logic.
B. A sub-controller capability is responsible for composing other service capabilities.
C. A sub-controller capability composes other service capabilities while it itself is also composed by other
service capabilities.
D. A sub-controller can only compose other service capabilities but it cannot itself be composed.
Answer: D

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NO.2 Which of the following is a common reason as to why the Standardized Service Contract principle is not
followed in some organizations? Select the correct answer.
A. Development tools are used to auto-generate the details of the technical service contract.
B. Developers ignore service contract design standards.
C. Developers are required to use pre-defined third-party service contracts obtained with the purchase of
legacy system adapters.
D. All of the above.
Answer: D

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NO.3 The decoupling of a service contract from the service's underlying implementation results in a(n)
__________________ in the service's level of abstraction because __________________ service
implementation details helps prevent service consumers from being designed to indirectly couple to the
underlying service implementation. Select the correct answer.
A. increase, hiding
B. increase, publishing
C. decrease, hiding
D. decrease, publishing
Answer: A

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NO.4 Which of the following is not a meta abstraction type associated with the Service Abstraction principle?
Select the correct answer.
A. functional
B. technology
C. programmatic
D. state
Answer: D

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NO.5 Fill in the blanks for the following definition of the Service Discoverability design principle: "Services are
supplemented with communicative metadata by which they can be effectively __________________ and
__________________." Select the correct answer.
A. designed, discovered
B. discovered, interpreted
C. discovered, refactored
D. discovered, deployed
Answer: B

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NO.6 A company is about to release a service for worldwide usage. As a result, the service contract receives
a great deal of attention. After a review it is decided to limit the service contract content to only what is
deemed absolutely necessary and to further have the service's Service Level
Agreement (SLA) translated into several different languages so that the service can be easily located by
those who may want to use it. Which pair of service-orientation principles directly supports these
design-time considerations? Select the correct answer.
A. Service Autonomy, Service Reusability
B. Service Statelessness, Standardized Service Contract
C. Service Discoverability, Service Abstraction
D. Service Reusability, Service Statelessness
Answer: C

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NO.7 Which of the following statements describes service re-composability, as it relates to the Service
Composability principle? Select the correct answer.
A. I have a service that is part of a service composition.
B. I have a service composition with 5 services.
C. I have a service that is part of 2 service compositions.
D. I have 2 service compositions that are part of 2 service inventories.
Answer: C

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NO.8 Which of the following statements are true? SELECT ALL THAT APPLY
A. The adoption of service-orientation can result in an increased overall time and cost for the initial
delivery of service logic.
B. The adoption of service-orientation can result in increased design complexity due to a constant
emphasis on reuse.
C. The adoption of service-orientation can result in an emphasis on tactical (short-term) rather than
strategic (long-term) planning in order to justify a quick ROI.
D. The adoption of service-orientation can result in a need to introduce a governance structure that may
introduce new organizational roles and processes.
Answer: A,B,D

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NO.9 The design principle most associated with an approach whereby the technical interface or contract of a
service is designed prior to its underlying logic is: Select the correct answer.
A. Service Autonomy
B. Service Reusability
C. Service Composability
D. Standardized Service Contract
Answer: D

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NO.10 Each time our corporate development team makes a change to the service logic it is required to
publish a new version of the service contract. Our customers are complaining because their service
consumer programs become incompatible with new service contract versions and therefore no longer
work. Which of the following service-orientation principles is most likely to help us solve this on-going
problem? Select the correct answer.
A. Service Reusability
B. Service Statelessness
C. Service Loose Coupling
D. Service Autonomy
Answer: C

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NO.11 Which of the following statements reveal common misunderstandings about service-orientation and
SOA? SELECT ALL THAT APPLY
A. In order for an enterprise to be successful with SOA, enterprise-wide standardization is
required.
B. Service-orientation is a revolutionary paradigm that is incompatible with existing paradigms and
practices.
C. Adoption of service-orientation will return an immediate ROI due to its focus on tactical (shortterm)
requirements fulfillment.
D. In order for an enterprise to be successful with SOA, an understanding of service-orientation is
required.
Answer: A,B,C

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NO.12 Which of the following statements correctly explains the difference between the Service
Abstraction and Service Loose Coupling principles? Select the correct answer.
A. Service Abstraction is focused on dependencies that exist between the service contract and its
underlying logic, whereas Service Loose Coupling is focused on fostering "loose state" in support of
runtime state deferral
B. Service Abstraction is focused on agnostic service logic only in order to establish an agnostic
abstraction layer, whereas Service Loose Coupling is focused on the relationship between the service
contract and service consumers.
C. Service Abstraction is focused on hiding information about service implementation details, whereas
Service Loose Coupling is focused on the positioning of the service contract in relation to the service
implementation and service consumers.
D. There is no difference between these two principles. One principle name is used instead of the other
depending on whether you are building loose or tight service abstraction layers.
Answer: C

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NO.13 Which of the following is not a state deferral option that is commonly used in support of applying the
Service Statelessness principle? Select the correct answer.
A. database
B. utility service
C. messages
D. service registry
Answer: D

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NO.14 As the quantity of services in service inventories increase, the potential for service compositions to
become larger and more complex increases also. Select the correct answer.
A. True
B. False
Answer: A

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NO.15 When applying the Service Loose Coupling design principle, we want to __________________ the
coupling of the service logic to the service contract because that allows the service contract to remain
__________________ from the service logic. Select the correct answer.
A. increase, decoupled
B. reduce, decoupled
C. increase, coupled
D. reduce, coupled
Answer: A

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Code d'Examen: S90-20A
Nom d'Examen: SOA Certified Professional (SOA Security Lab)
Questions et réponses: 30 Q&As

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NO.1 Service A exchanges messages with Service B multiple times during the same runtime service activity.
Communication between Services A and B has been secured using transport-layer security. With each
service request message sent to Service B (1A. IB), Service A includes an
X.509 certificate, signed by an external Certificate Authority (CA). Service B validates the certificate by
retrieving the public key of the CA (2A. 2B) and verifying the digital signature of the
X.509 certificate. Service B then performs a certificate revocation check against a separate external CA
repository (3A, 3B). No intermediary service agents reside between Service A and Service B.
To fulfill a new security requirement, Service A needs to be able to verify that the response message sent
by Service B has not been modified during transit. Secondly, the runtime performance between Services
A and B has been unacceptably poor and therefore must be improved without losing the ability to verify
Service A's security credentials. It has been determined that the latency is being caused by redundant
security processing carried out by Service B.
Which of the following statements describes a solution that fulfills these requirements?
A. Apply the Trusted Subsystem pattern to introduce a utility service that performs the security processing
instead of Service B. The utility service can verify the security credentials of request messages from
Service A and digitally sign messages sent to Service A to enable verification of message integrity.
Furthermore, the utility service can perform the verification of security credentials submitted by Service A
only once per runtime service activity. After the first messageexchange, it can issue a SAML token to
Service A that gets stored within the current session. Service A can then use this session-based token
with subsequent message exchange. Because SAML tokens have a very small validity period (in contrast
to X.509 certificates), there is no need to perform a revocation check with every message exchange.
B. Service B needs to be redesigned so that it performs the verification of request messages from Service
A only for the first message exchange during the runtime service activity. Thereafter, it can issue a SAML
token to Service A that gets stored within the current session. Service A then uses this session-based
token with subsequent message exchanges. Because SAML tokens have a very small validity period (in
contrast to X.509 certificates), there is no need to perform a revocation check with every message
exchange.
C. WS-SecurityPolicy transport binding assertions can be used to improve performance via
transport-layer security The use of symmetric keys can keep the encryption and decryption overhead to a
minimum, which will further reduce the latency between Service A and Service B. By encrypting the
messages, attackers cannot modify message contents, so no additional actions for integrity verification
are needed.
D. The Data Origin Authentication pattern can be applied together with the Service Perimeter Guard
pattern to establish a perimeter service that can verify incoming request messages sent to Service B and
to filter response messages sent to Service A. The repository containing the verification information about
the Certificate Authorities can be replicated in the trust domain of the perimeter service. When access is
requested by Service A, the perimeter service evaluates submitted security credentials by checking them
against the locally replicated repository. Furthermore, it can encrypt messages sent to Service A by
Service B. and attach a signed hash value.
Answer: A

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NO.2 Service Consumer A sends a request message to Service A (1) after which Service A retrieves financial
data from Database A (2). Service A then sends a request message with the retrieved data to Service B
(3). Service B exchanges messages with Service C (4) and Service D (5), which perform a series of
calculations on the data and return the results to Service A. Service A uses these results to update
Database A (7) and finally sends a response message to Service Consumer A (8). Component B has
direct, independent access to Database A and is fully trusted by Database A. Both Component B and
Database A reside within Organization A. Service Consumer A and Services A, B, C, and D are external to
the organizational boundary of Organization A.
Component B is considered a mission critical program that requires guaranteed access to and fast
response from Database A. Service A was recently the victim of a denial of service attack, which resulted
in Database A becoming unavailable for extended periods of time (which further compromised
Component B). Additionally, Services B, C, and D have repeatedly been victims of malicious intermediary
attacks, which have further destabilized the performance of Service A.
How can this architecture be improved to prevent these attacks?
A. A utility service is created to encapsulate Database A and to assume responsibility for authenticating all
access to the database by Service A and any other service consumers. Due to the mission critical
requirements of Component B, the utility service further contains logic that strictly limits the amount of
concurrent requests made to Database A from outside the organizational boundary. The Data
Confidentiality and Data Origin Authentication patterns are applied to all message exchanged within the
external service composition in order to establish message-layer security.
B. Service Consumer A generates a private/public key pair and sends this public key and identity
information to Service A. Service A generates its own private/public key pair and sends it back to Service
Consumer A. Service Consumer A uses the public key of Service A to encrypt a randomly generated
session key and then sign the encrypted session key with the private key. The encrypted, signed session
key is sent to Service A. Now, this session key can be used for secure message-layer communication
between Service Consumer A and Service A. The Service Perimeter Guard pattern is applied to establish
a perimeter service that encapsulates Database A in order to authenticate all external access requests.
C. Services B, C, and D randomly generate Session Key K, and use this key to encrypt request and
response messages with symmetric encryption. Session Key K is further encrypted itself asymmetrically.
When each service acts as a service consumer by invoking another service, it decrypts the encrypted
Session Key K and the invoked service uses the key to decrypt the encrypted response. Database A is
replicated so that only the replicated version of the database can be accessed by Service A and other
external service consumers.
D. The Direct Authentication pattern is applied so that when Service Consumer A submits security
credentials, Service A will be able to evaluate the credentials in order to authenticate the request
message. If the request message is permitted, Service A invokes the other services and accesses
Database A. Database A is replicated so that only the replicated version of the database can be accessed
by Service A and other external service consumers.
Answer: A

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Code d'Examen: S90-08A
Nom d'Examen: SOA Certified Professional (Advanced SOA Design & Architecture)
Questions et réponses: 100 Q&As

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NO.1 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 process positive acknowledgements
B.service agents can process negative acknowledgements
C.service agents can load balance messages
D.service agents can route messages based on their content
Answer:AB

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NO.2 Load balancing is commonly associated with which pattern?
A.Atomic Service Transaction
B.Intermediate Routing
C.Service Broker
D.Decoupled Contract
Answer:B

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NO.3 The application of the Contract Centralization pattern requires that runtime access policies be
implemented.
A. True
B. False
Answer:B

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NO.4 Which of the following statements are false?
A.Using the Reliable Messaging pattern can improve the quality of messaging-based communication.
B.The Reliable Messaging pattern is applied to databases, not services.
C.The Reliable Messaging pattern is one of the patterns that can be associated with the Enterprise
Service Bus compound pattern.
D.The Reliable Messaging pattern is always applied together with the Atomic Service Transaction pattern.
Answer:BD

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NO.5 Assuming the Reliable Messaging pattern is successfully applied, which of the following statements is
correct?
A.A service agent intercepts and stores a message from the service consumer. The service agent then
returns an acknowledgement back to the service consumer. Next, the service agent forwards the
message to the service and when it receives an acknowledgement back from the service, it deletes the
message.
B.A service agent intercepts and stores a message from the service consumer. The service agent then
forwards the message to the service. Next, the service agent receives an acknowledgement from the
service, which it returns to the service consumer. Finally, the service agent deletes the message and
related acknowledgements.
C.The service consumer stores the message and forwards it to a service agent, which issues an
acknowledgement back to the service consumer. The service agent then forwards the message to the
service and when it receives an acknowledgement from the service, the service agent informs the service
consumer so that it can delete the message and the acknowledgement.
D.None of the above.
Answer:A

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NO.6 Governance can become an issue with service agents because:
A.You will need to determine who will own and maintain the service agents.
B.Changes to a single service agent can impact multiple services throughout a service inventory.
C.Service agents need to be versioned, just like services.
D.All of the above.
Answer:D

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NO.7 Which of the following statements is false?
A.The Contract Centralization pattern positions the service contract as the official entry point into the
service logic.
B.The Contract Centralization pattern can impose performance overhead and requires the use of design
standards.
C.The application of the Contract Centralization pattern enables access to underlying service resources
through the use of secondary or unofficial technical contracts.
D.The Decoupled Contract pattern supports the application of the Contract Centralization pattern.
Answer:C

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NO.8 The Reliable Messaging pattern requires:
A.the use of standardized service contracts in order to enable message atomic transaction details to be
carried in the message header
B.a framework for temporarily persisting messages and issuing acknowledgements
C.the application of the Official Endpoint pattern in order to enable acknowledgement features
D.a framework capable of bridging disparate messaging protocols in order to exchange schemas
between compatible services
Answer:B

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NO.9 Which of the following patterns may also require the application of the Service Agent pattern?
A.Reliable Messaging
B.Asynchronous Queuing
C.Intermediate Routing
D.Policy Centralization
Answer:ABCD

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NO.10 The queue established by applying the Asynchronous Queuing pattern enables service consumer and
service to revert to a stateless condition before a data exchange has fully completed.
A. True
B. False
Answer:A

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NO.11 A service agent has a technical contract that allows it to be explicitly invoked by service consumer
programs.
A. True
B. False
Answer:B

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NO.12 The application of the Intermediate Routing pattern can result in multiple service agents intercepting a
message before it arrives at its destination.
A. True
B. False
Answer:A

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NO.13 The use of the Intermediate Routing pattern typically results in:
A.common routing logic being removed from service logic and placed into service agents
B.common routing logic being removed from service agents and placed into a database
C.common routing logic being physically centralized into a single service
D.common routing logic being physically centralized into a single service composition
Answer:A

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NO.14 Which statement regarding intermediate routing is true?
A.The application of the Intermediate Routing pattern is suitable for handling message routing
requirements that are dynamic in nature and difficult to anticipate in advance.
B.The application of the Intermediate Routing pattern is suitable for handling pre-determined message
paths with fixed routing requirements that cannot be changed at runtime.
C.The application of the Intermediate Routing pattern tends to improve runtime performance when
compared to an approach whereby routing logic is embedded within individual services.
D.None of these statements are true.
Answer:A

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NO.15 Which of the following statements is true?
A.The overuse of service agents can lead to dependencies on proprietary vendor platforms.
B.The use of service agents is limited to the service architecture.
C.Service agents are common in orchestration environments but not within enterprise service bus
environments.
D.None of these statements are true.
Answer:A

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NO.16 When applying the Asynchronous Queuing pattern you aim to establish an environment in which:
A.an intermediate buffer exists between a service and its service consumer
B.temporary message storage is provided in case either the service or service consumer are unavailable
C.periodic re-transmission of a message is supported until it is successfully delivered
D.enforcement of consistent, uninterrupted, synchronous communication between service and service
consumer are guaranteed
Answer:ABC

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NO.17 The application of the Intermediate Routing pattern can address which of the following needs?
A.The need to increase the autonomy of a service due to its reliance on a shared data source.
B.The need to perform content-based routing based upon metadata found in the message header.
C.The need for load-balanced access to a redundantly deployed service.
D.The need to provide pre-defined compensating logic for when an atomic service transaction fails.
Answer:BC

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NO.18 Which of the following statements is false?
A.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.
B.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.
C.The Messaging Metadata pattern is not applicable to situations where the message sender and
receiver need to participate in stateful or conversational message exchanges.
D.The Messaging Metadata pattern can support the application of patterns such as Intermediate Routing
by supplementing messages with activity-specific metadata.
Answer:C

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NO.19 The scope and size of different service inventory architectures can vary.
A. True
B. False
Answer:A

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NO.20 Each service composition within a service inventory shares the same service composition architecture.
A. True
B. False
Answer:B

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Code d'Examen: C90-03A
Nom d'Examen: SOA Certified Professional (Cloud Technology Lab)
Questions et réponses: 21 Q&As

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NO.1 Cloud Service Consumer A invokes Cloud Service A from Cloud X (owned by Cloud Provider X) (1). To
fulfill the request from Cloud Service Consumer A, Cloud Service A needs to invoke Cloud Service B that
resides on Cloud Y (owned by Cloud Provider Y) (2). After completing its processing, Cloud Service B
sends a response to Cloud Service A (3). Cloud Service A verifies the response and then finally sends its
response to Cloud Service Consumer A (4).
The guaranteed availability of the Cloud Service A implementation is 95% and the guaranteed availability
of the Cloud Service B implementation is 95%. Which of the following statements accurately describes the
actual availability that Cloud Service Consumer A can receive based on the described scenario?
A. Because Cloud Service Consumer A's response message is processed by two separate cloud
services, the combined availability increases as follows:
1.- (1 - 0.95) X (1 - 0.95) = 0.9975 or 99.75%
B. Because Cloud Service A acts as both a cloud service and cloud service consumer in order to
process Cloud Service Consumer B's request message, Cloud Service A forms a dependency on
Cloud Service B. As a result, the combined availability decreases, as follows:
0.95 X 0.95 = 0.9025 or 90.25%
C. Cloud Service Consumer A benefits from redundant cloud service implementations, thereby
increasing the guaranteed availability as follows:
1.- (1 - (0.95 - 0.1))X (1 - (0.95 - 0.1)) = 0.9775 or 97.75%
D. As a result of the dependency formed by Cloud Service Aon Cloud Service B,the combined availability
decreases significantly as follows:
(0.95 X 0.95) - 0.1 = 0.8025 or 80.25%
Answer: B

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NO.2 The cloud service owner of Cloud Service A is evaluating Clouds X, Y and Z to determine which cloud
environment can offer the greatest level of reliability. All three clouds are geographically dispersed across
three separate time zones. As a result, each cloud experiences usage peaks at different times. Based on
the metrics provided, the greater the usage of a cloud, the lower its reliability. When the cloud service
owner complains to Cloud Provider A (the owner of all three clouds) that none of the clouds provide an
adequate level of reliability, Cloud Provider A suggests a solution that increases resiliency.
Which of the following statements accurately describes a solution that can be used to fulfill the resiliency
requirements of Cloud Service A.?
A. Redundant implementations of Cloud Service A are deployed in all three clouds. The failover system
mechanism and a special type of automated scaling listener mechanism are implemented to establish a
system whereby one redundant Cloud Service A implementation will automatically take over from another.
B. A cloud balancing solution is established, whereby an automated scaling listener mechanism is
implemented on each cloud in such a way that every cloud can automatically scale out to another cloud.
As a result, if reliability problems occur on any one cloud, the subsequent requests will be scaled out to
another cloud in a manner that is transparent to cloud service consumers.
C. A failover system mechanism is implemented on Cloud X, which acts as the primary point of contact for
cloud serviceconsumers. Upon failure conditions occurring, the Cloud Service A implementation on Cloud
X automatically hands over control of current and future message requests from cloud service consumers
to Cloud Y. Cloud Y retains control of cloud serviceconsumer communication until the next failure
condition occurs, at which point it hands over control to Cloud Z. Finally, if a failure condition occurs in
Cloud Z. control is handed back to Cloud X.
D. A cloud balancing solution is established, whereby a resource replication mechanism is implemented
on each cloud. This allows Cloud Service A to be automatically replicated across cloud environments,
thereby enabling each implementation of Cloud Service A to take the place of another, whenever failure
conditions occur.
Answer: A

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Code d'Examen: S90-02A
Nom d'Examen: SOA Certified Professional (SOA Technology Concepts)
Questions et réponses: 92 Q&As

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NO.1 If Service B is invoked by Service A and then Service B invokes Service C and all of this happens as
part of the same service activity, then Service B would be considered:
A. an intermediary
B. a service agent
C. an ultimate receiver
D. an initial sender
Answer: A

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NO.2 Which of the following statements is true.?
A. WS-ReliableMessaging standardizes reliability levels associated with databases required to persist
state data.
B. WS-ReliableMessaging standardizes the issuance and delivery of positive and negative
acknowledgement messages.
C. WS-ReliableMessaging standardizes SOAP headers related to atomic transactions with rollback
features.
D. WS-ReliableMessaging standardizes the expression of service composition logic, but only for
SOAP-based Web services.
Answer: B

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NO.3 The XML language is expressed through the use of:
A. elements or tags
B. databases or repositories
C. services or components
D. service compositions or orchestrations
Answer: A

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NO.4 Which of the following statements is true?
A. Individual service contracts do not need to be published for SOAP-based Web services. Instead, they
use a uniform contract.
B. Individual service contracts do not need to be published for REST services. Instead, they use a
common uniform contract.
C. Components provide published contracts, but when building services as components, components
must use a uniform contract instead.
D. None of these statements are true.
Answer: B

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NO.5 XML can be used to structure data passed between REST services, but REST introduces rules that limit
the extent to which XML elements and attributes can be nested.
A. True
B. False
Answer: B

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NO.6 I would like to extend my WSDL definition to include a programmatically consumable statement that
communicates that upon receiving a message the service will add an entry to an event log. Which
technology should I use?
A. Mashup
B. XSLT
C. REST
D. None of the above.
Answer: D

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NO.7 WS-Addressing is most commonly associated with __________________ functionality.
A. process management
B. policy enforcement
C. message routing
D. choreography
Answer: C

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NO.8 Data model transformation is a core service function that can be performed by proven technologies
that have been around for years. Therefore, it is recommended that you look for opportunities to apply this
technology wherever possible, especially in larger, more complex service compositions.
A. True
B. False
Answer: B

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NO.9 SOAP-based Web services can be designed for use within traditional RPC-style distributed solutions
or for use in service-oriented solutions.
A. True
B. False
Answer: A

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NO.10 Which of the following statements is true?
A. An enterprise service bus commonly provides service broker-related features that allow two services
using different data models (that represent the same business document) to communicate with each
other.
B. An enterprise service bus commonly provides service broker-related features that allow two services
using different communication protocols to communicate with each other.
C. An enterprise service bus commonly provides service broker-related features that allow two services to
communicate even though they use different communication protocols and different data models (that
represent the same business document).
D. All of these statements are true.
Answer: D

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NO.11 Which of the following statements is true?
A. Service activities represent runtime activity that occurs within the underlying service logic.
B. Service activities represent design-time message exchanges that are established between
SOAP-based Web services and defined as part of the operation definition within the WSDL definition.
C. Service activities represent runtime activity that occurs between services.
D. Service activities represent runtime activity that occurs between complex and simple XML Schema
types.
Answer: C

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NO.12 XML schemas are comparable to database records. Therefore, XML documents that are based on
XML schemas are comparable to database data models.
A. True
B. False
Answer: B

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NO.13 A SOAP-based Web service is required to transmit an XML-based invoice document to a REST
service. However, the SOAP-based Web service is designed to represent invoice data using an XML
schema that is different from the XML schema used within the REST service. How can the disparity
between the XML schemas, used by these two services, be overcome so that they can exchange the
invoice document?
A. A layer of data format transformation logic needs to be introduced based on mashup technologies,
such as DTD and WS-Transform.
B. A layer of protocol transformation logic needs to be introduced based on Web technologies, such as
HTTP and FTP.
C. A layer of data model transformation logic needs to be introduced, based on XML technologies, such
as XSLT.
D. There is no technique or technology for overcoming differences between XML schemas.
Answer: C

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NO.14 Which of the following statements is false?
A. The WS-I is an industry standards organization that provides basic profiles to help foster
interoperability among solutions based on XML and Web services industry standards.
B. OASIS is an industry standards organization that has developed a number of important technology
specifications, including WS-BPEL and UDDI.
C. The W3C is a standards organization that has developed a number of important technology
specifications, including SOAP, WSDL, and WS-Addressing.
D. The OAS-C is an industry standards organization that has developed a number of important
technology specifications, including WS-Security and XML Schema.
Answer: D

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NO.15 A __________________ establishes a common access point generally based on HTTP methods used
by __________________.
A. WSDL definition, SOAP-based Web service
B. uniform contract, REST services
C. XML schemas, components
D. None of the above
Answer: B

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NO.16 When two compatible SOAP-based Web services need to exchange an XML document that is
compliant with the XML schema shared by both services, then:
A. A data model transformation technology, such as XSLT, must be used to enable the data exchange.
B. A new XML schema must be created to overcome the disparity between how each service defines the
data model for the XML document.
C. A WS-Policy definition must be created to establish rules that address any differences in the XML
document exchange.
D. None of the above.
Answer: D

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NO.17 Identify what is wrong with the following statement: "I have a single Calculator component that provides
basic math functions. I'm exposing this component as a component-based service for internal service
consumers that are also component-based. I'm exposing this component as a SOAP-based Web service
for internal and external service consumers that support SOAP messaging. I'm also exposing this
component as a REST service for external service consumers that prefer to access its functions via HTTP
methods. I'm also exposing this component as a service agent for service consumers that support explicit
invocation via a service contract."
A. A single component cannot be exposed as a component-based service, a SOAP-based Web service
and a REST service at the same time.
B. SOAP-based Web service consumer programs cannot be both internally and externally located.
C. The uniform contract required by REST services does not support the use of HTTP methods.
D. Service agents are event-driven and are therefore not explicitly invoked via a service contract.
Answer: D

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NO.18 A SOAP message is an XML document that is comprised of a set of pre-defined parts. Which of the
following are parts that can be found in a SOAP message?
A. Envelope
B. Body
C. Header
D. Footer
Answer: A,B,C

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NO.19 Which of the following are associated with the functionality provided by a typical enterprise service
bus?
A. reliable message delivery
B. intermediate message routing
C. temporary storage of messages in queues
D. All of the above.
Answer: D

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NO.20 When designing REST services within a given domain, you establish __________________ that are
represented by unique identifiers, usually in the format of __________________.
A. resources, HTTPs/HTTPSs
B. mashups, HTTPs/HTTPSs
C. resources, URLs/URIs
D. mashups, URLs/URIs
Answer: C

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Code d'Examen: S90-19A
Nom d'Examen: SOA Certified Professional (Advanced SOA Security)
Questions et réponses: 83 Q&As

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NO.1 When designing XML schemas to avoid data-centric threats, which of the following are valid
considerations?
A. The maxOccurs attribute needs to be specified using a restrictive value.
B. The <xsd:any> element needs to be avoided.
C. The <xsd:restriction> element can be used to create more restrictive user-defined simple types.
D. All of the above.
Answer: B,D

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NO.2 The use of XML schemas for data validation helps avoid several types of data-centric threats.
A. True
B. False
Answer: A

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NO.3 Security policies defined using WS-SecurityPolicy can be used to convey which of the following
requirements to a service consumer?
A. Whether transport-layer or message-layer security needs to be used
B. The encryption type that needs to be used for transport-layer security
C. The algorithms that need to be used for cryptographic operations
D. The type of security token that must be used
Answer: A,C,D

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NO.4 Which of the following can directly contribute to making a service composition architecture more
vulnerable to attacks?
A. Reliance on intermediaries
B. Reliance on transport-layer security
C. Reliance on open networks
D. All of the above
Answer: D

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NO.5 Service A has recently been the victim of XPath injection attacks. Messages sent between Service A
and Service C have traditionally been protected via transport-layer security. A redesign of the service
composition architecture introduces Service B, which is positioned as an intermediary service between
Service A and Service C. The Message Screening pattern was applied to the design of Service B. As part
of the new service composition architecture, transport-layer security is replaced with message-layer
security for all services, but Service A and Service C continue to share the same encryption key. After the
new service composition goes live, Service A continues to be subjected to XPath injection attacks. What
is the reason for this?
A. The message screening logic can only work for Service C. Therefore, Service A is not protected.
B. Because message-layer security is being used, it is not possible for the message screening logic in
Service B to inspect messages without having the encryption key that is shared by Service A and Service
C.
C. XPath injection attacks are not prevented by message screening logic or message-layer security.
D. None of the above.
Answer: B

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NO.6 The use of session keys and symmetric cryptography results in:
A. Increased performance degradation
B. Increased reliability degradation
C. Reduced message sizes
D. None of the above
Answer: D

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NO.7 Service A's logic has been implemented using managed code. An attacker sends an XML bomb to
Service A. As a result, Service A's memory consumption started increasing at an alarming rate and then
decreased back to normal. The service was not affected by this attack and quickly recovered. Which of
the following attacks were potentially avoided?
A. XML parser attack
B. Buffer overrun attack
C. Insufficient authorization attack
D. Denial of service
Answer: A,D

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NO.8 ___________ is an industry standard that describes mechanisms for issuing, validating, renewing and
cancelling security tokens.
A. WS-Security
B. WS-Trust
C. WS-SecureConversation
D. WS-SecurityPolicy
Answer: B

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NO.9 The Service Perimeter Guard pattern has been applied to help avoid denial of service attacks for a
service inventory. As a result, services within the service inventory are only accessible via a perimeter
service However, denial of service attacks continue to succeed and services within the service inventory
become unavailable to external service consumers. What is the likely cause of this?
A. The application of the Service Perimeter Guard pattern needs to be combined with the application of
the Message Screening pattern in order to mitigate denial of service attacks.
B. The perimeter service itself is the victim of denial of service attacks. As a result, none of the services
inside the service inventory can be accessed by external service consumers.
C. The Trusted Subsystem pattern should have been applied so that each service has a dedicated trusted
subsystem.
D. The Service Perimeter Guard pattern does not help avoid denial of service attacks.
Answer: B

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NO.10 Which of the following types of attack always affect the availability of a service?
A. Exception generation attack
B. SQL injection attack
C. XPath injection attack
D. None of the above
Answer: D

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NO.11 Service A needs to be designed so that it supports message integrity and so that only part of the
messages exchanged by the service are encrypted. You are asked to create the security policy for this
service. What type of policy assertions should you use?
A. Token assertions
B. Protection assertions
C. Security binding assertions
D. Service A's security requirements cannot be expressed in a policy
Answer: B

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NO.12 The application of the Service Loose Coupling principle does not relate to the use of security policies
as part of service contracts.
A. True
B. False
Answer: B

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NO.13 The Trusted Subsystem pattern is applied to a service that provides access to a database. Select the
answer that best explains why this service is still at risk of being subjected to an insufficient authorization
attack.
A. Attackers can steal confidential data by monitoring the network traffic that occurs between the service
and the database.
B. Because the Service Perimeter Guard pattern was also not applied, the database is not protected by a
firewall.
C. If an attacker gains access to the security credentials used by the service to access the database, the
attacker can access the database directly.
D. None of the above.
Answer: C

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NO.14 An alternative to using a ___________ is to use a __________.
A. Public key, private key
B. Digital signature, symmetric key
C. Public key, key agreement security session
D. Digital signature, asymmetric key
Answer: C

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NO.15 How can the use of pre-compiled XPath expressions help avoid attacks?
A. Pre-compiled XPath expressions execute faster and therefore help avoid denial of service attacks.
B. Pre-compiled XPath expressions reduce the chance of missing escape characters, which helps avoid
XPath injection attacks
C. Pre-compiled XPath expressions contain no white space, which helps avoid buffer overrun attacks
D. They can't because XPath expressions cannot be pre-compiled
Answer: B

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Code d'Examen: S90-05A
Nom d'Examen: SOA Certified Professional (SOA Technology Lab)
Questions et réponses: 40 Q&As

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NO.1 You are a consultant helping a large bank implement an on-line banking service for its customers. The
first operation you need to build is one that allows a customer to initiate a transfer of funds. You are
presented with the following sample XML document that represents the funds transfer information that
this operation needs to be able to receive:
<transfer>
< fromAccount>12345 </fromAccount>
< toAccount>44432 </toAccount>
<amount>2000</amount>
</transfer>
You are also provided with the following sample that shows that the response message sent by the
service needs to return a single element with text content:
<transferStatus>SUCCESS</transferStatus>
Which of the following XML schemas will validate the two samples shown above?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: C

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NO.2 Your developer is asked to build a Timesheet service that is able to receive timesheet submissions for
an internal payroll system. Service consumers need to be able to send this service request message
based on a root "employeeHours" element within the SOAP message body. The "employeeHourse"
element will contain "ernpID" and "hours" child elements. Furthermore, the service needs to return a
message based on a "response" element that contains "empID" and "status" child elements.
Your developer comes to you with the following WSDL definition: The only revision you suggest is that the
value of the "style" attribute of the "soap: binding" element be changed to "document" instead of "rpc".
Why?
A. With a value of "rpc", the root element within the SOAP message body will have the name of the
operation, and therefore cannot be named "employeeHours" as indicated by the requirements.
B. With a value of "rpc", the root element within the SOAP message body is unable to be part of an
operation that contains both "input" and "output" elements.
C. The value of "rpc" is not a valid value for the "style" attribute.
D. None of the above.
Answer: A

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NO.3 A partner organization has given you samples of XML documents retrieved from their product
information database. The three samples they have sent you are: Because they are an important partner,
you have agreed to write a service to accept XML documents in their format. However, they did not send
you a schema, so you are tasked with defining a schema that will correctly validate their documents.
Which of the following XML schemas will successfully validate each of the above XML document
fragments.?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: B

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NO.4 Your company has developed a service that allows your customers to check the status of an order. The
schema for the service is shown here:
A new customer plans to use your service, but they want to test it first. They have asked for two sample
XML documents that show typical input and output message content. Which of the following pairs of XML
elements will validate with the schema shown above?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: D

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NO.5 Your company has developed a PO service that allows customers to submit purchase order documents.
The message sent by a customer must be based on a predefined "purchaseOrder" element and the
message received by the customer is based on a "messageAcknowledgement" element. These two
elements are defined in the following two separate XML Schema definitions: The "purchaseOrder.xsd"
schema:
Note that these two schemas have different namespaces. That is because the "purchaseOrder.xsd"
schema is specific to purchase order-related functions, while the "ack.xsd" schema is more generic and
used for a variety of different purposes.
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A

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