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?
Answer(s): B
How can the use of pre-compiled XPath expressions help avoid attacks?
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?
The application of the Service Loose Coupling principle does not relate to the use of security policies as part of service contracts.
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?
Which of the following can directly contribute to making a service composition architecture more vulnerable to attacks?
Answer(s): D
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.
Answer(s): C
The exception shielding logic resulting from the application of the Exception Shielding pattern can be centralized by applying which additional pattern?
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