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Exam Code: S90-03A
Exam Name: SOA Certified Professional (SOA Design & Architecture)
One year free update, No help, Full refund!
Total Q&A: 100 Questions and Answers
Last Update: 2014-02-04

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NO.1 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.2 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.3 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.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 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.6 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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NO.7 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.8 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.9 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.10 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.11 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.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 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.14 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.15 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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Exam Code: S90-19A
Exam Name: SOA Certified Professional (Advanced SOA Security)
One year free update, No help, Full refund!
Total Q&A: 83 Questions and Answers
Last Update: 2014-02-04

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NO.1 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.2 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.3 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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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 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.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 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.8 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.9 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.10 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.11 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.12 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.13 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.14 ___________ 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.15 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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Exam Code: S90-02A
Exam Name: SOA Certified Professional (SOA Technology Concepts)
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Total Q&A: 92 Questions and Answers
Last Update: 2013-12-08

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NO.1 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.2 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.3 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.4 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.5 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.6 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.7 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.8 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.9 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.10 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.11 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.12 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.13 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.14 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.15 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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NO.16 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.17 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.18 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.19 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.20 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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Exam Code: S90-20A
Exam Name: SOA Certified Professional (SOA Security Lab)
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Total Q&A: 30 Questions and Answers
Last Update: 2013-12-08

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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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Exam Code: C90-01A
Exam Name: SOA Certified Professional (Fundamental Cloud Computing(C90.01))
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Total Q&A: 69 Questions and Answers
Last Update: 2013-11-10

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NO.1 Measured usage is only limited to tracking statistics for billing purposes. It does not encompass the
general monitoring of IT resources and related usage reporting. Therefore, measured usage is only
relevant to clouds that charge for usage. Select the correct answer. ?
A. True
B. False
Answer: B

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NO.2 Which of the following are common types of cloud service consumers? SelectALL THAT APPLY
A. Software programs capable of remotely accessing cloud services with published service contracts.
B. Services capable of remotely accessing cloud services with published service contracts.
C. Humans that use workstations running software capable of remotely accessing IT resources positioned
as cloud services.
D. Mobile devices running software capable of remotely accessing IT resources positioned as cloud
services.
Answer: A,B,D

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NO.3 The Limited Portability Between Cloud Providers challenge of cloud computing can occur when an
absence of industry standards (or an absence of compliance to industry standards) requires that cloud
consumers build cloud-based solutions to conform to proprietary requirements imposed by cloud
providers. This makes it more difficult to move to new cloud providers in the future.Select the correct
answer.
A. True
B. False
Answer: A

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NO.4 .A(n) ____________________ cloud is a cloud environment owned by a third-party cloud provider and
accessible to external cloud consumers. The IT resources in the cloud are generally offered to cloud
consumers at a cost. Select the correct answer.
A. public
B. on-premise
C. private
D. None of the above.
Answer: A

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NO.5 Service agents are provided only by runtime environments and operating systems. As a result, service
agents cannot be custom-developed. Select the correct answer.
A. True
B. False
Answer: B

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Exam Code: S90-18A
Exam Name: SOA Certified Professional (Fundamental SOA Security)
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Total Q&A: 98 Questions and Answers
Last Update: 2013-09-28

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NO.1 Digital signatures use encryption and hashing.
A. True
B. False
Answer: A

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NO.2 A task service needs to access three entity services as part of a service composition. The task service
needs to authenticate itself every time it accesses one of the three entity services. Because the task
service must authenticate itself three times to complete its task, the current service composition design is
considered inefficient. How can it be improved while continuing to fulfill the authentication requirements?
A. Increase the network bandwidth between the task service and the entity services.
B. Use a single sign-on mechanism.
C. Remove the authentication requirements within the service composition, thereby reducing the
message size and making communication faster.
D. None of the above
Answer: B

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NO.3 Service A and Service B belong to Organization A and Service C belongs to Organization B. Service A
sends confidential messages to Service B, which forwards these messages to Service
C. The message sent to Service C is intercepted by a load balancing service agent that determines which
instance of Service C to route the message to. This entire message path needs to be encrypted in order
to ensure message confidentiality from when the message is first sent by Service A until it is received by
an instance of Service C. Organization A doesn't trust any intermediaries that may exist in between
Service B and Service C and also doesn't want to share any keys with Organization B. Furthermore, there
is a requirement to minimize any adverse effects on performance. Which of the following approaches
fulfills these requirements?
A. Use message-layer security by adding symmetric encryption between Services A, B and C. This
way,message content is not available to any intermediaries between Services B and C.
B. Because Service A and Service B exist within the same organizational boundary, use transport-layer
security to provide message confidentiality. Use message-layer security via asymmetric encryption
between Service B and Service C.
C. Use transport-layer security between Service B and Service C and use message-layer security via
asymmetric encryptionbetween Service A and Service B. This way. all the services are secured while at
the same time minimizing the performance degradation between Service B and Service C.
D. None of the above.
Answer: B

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NO.4 The SAML and WS-Security industry standards can be applied to the same service composition
architecture.
A. True
B. False
Answer: A

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NO.5 A service contract includes a security policy that exposes specific details of the service's underlying
implementation. This is an example of the application of which service-orientation principle?
A. Service Abstraction
B. Service Loose Coupling
C. Standardized Service Contract
D. None of the above.
Answer: D

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NO.6 Service A relies on a shared identity store. Service B has its own identity store. Service C also has its
own identity store, but must also access the shared identity store used by Service A. Which service has
the least reduction in autonomy as a result of its relationship with identity store mechanism(s)?
A. Service A
B. Service B
C. Service C
D. The autonomy of all services is affected equally
Answer: B

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NO.7 Which of the following is not a hashing algorithm?
A. MD5
B. X.509
C. SHA-1
D. SHA-256
Answer: B

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NO.8 The manager of an IT department decides to split up an existing enterprise service inventory into two
domain service inventories. The public key used previously in the enterprise service inventory can
continue to be used in one of the domain service inventories.
A. True
B. False
Answer: A

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NO.9 As a requirement for accessing Service B, Service A needs to encrypt its request message. Service B
decrypts the message, makes some changes, encrypts the message, and then forwards it to Service C.
However, the message does not make it to Service C. Instead, a runtime error is raised by a service agent
that does not support encryption. This service agent only requires access to the message header in order
to route the message to the appropriate instance of Service C. It is therefore decided that the header part
of the message will not be encrypted. Which of the following can be used to address this requirement?
A. certificate authority
B. SAML
C. non-repudiation
D. None of the above
Answer: D

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NO.10 The requirement to defer security related state data at runtime relates directly to the application of which
service-orientation principle?
A. Service Loose Coupling
B. Service Autonomy
C. Service Abstraction
D. None of the above.
Answer: D

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NO.11 The owner of a service inventory reports that the public key related to a certain private key has been
lost. There is a concern that this was the result of a security breach. A security specialist recommends
contacting the certificate authority in order to add the corresponding certificate to the certificate authority's
Certificate Revocation List (CRL). However, the certificate authority responds by indicating that this is not
necessary. Which of the following answers explains this response?
A. The certificate authority needs to issue a new public key instead.
B. The certificate authority requires that the existing public key needs to be changed within the existing
certificate.
C. Public keys cannot get lost because they are alreadypublicallyavailable.
D. None of the above
Answer: C

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NO.12 The use of XML-Encryption supports the application of the Service Abstraction principle because the
actual message remains hidden from the attacker.
A. True
B. False
Answer: B

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NO.13 The application of the Data Origin Authentication pattern only provides message integrity.?
A. True
B. False
Answer: B

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NO.14 The application of the Brokered Authentication pattern is best suited for a scenario whereby a service
consumer does not need to re-authenticate itself with multiple services.
A. True
B. False
Answer: B

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NO.15 Service A sends a message to Service B which reads the values in the message header to determine
whether to forward the message to Service C or Service D. Because of recent attacks on Services C and
D, it has been decided to protect the body content of messages using some form of encryption. However,
certain restrictions within the design of Service B will not permit it to be changed to support the encryption
and decryption of messages. Only Services A, C and D can support message encryption and decryption.
Which of the following approaches fulfill these security requirements without changing the role of Service
B?
A. Transport-layer security is implemented between all services.
B. Message-layer security is implemented between all services.
C. Service B is removed. Instead, the routing logic is added to Service A.
D. None of the above
Answer: B

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Exam Code: S90-03A
Exam Name: SOA Certified Professional (SOA Design & Architecture)
One year free update, No help, Full refund!
Total Q&A: 100 Questions and Answers
Last Update: 2013-09-15

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NO.1 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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NO.2 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.3 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.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 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.6 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.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 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.9 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.10 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.11 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.12 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.13 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.14 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.15 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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