Online S90.19 Questions Video

A service uses specialized screening logic that compares the size of a message against a maximum allowable size value. This value is specified for an incoming request message for a specific service capability. Upon a mismatch, the service rejects the request message and instead generates an error message. What type of attack has this security architecture not addressed?

Service A retrieves data from third-party services that reside outside the organizational boundary. The quality of the data provided by these third-party services is not guaranteed. Service A contains exception shielding logic that checks all outgoing messages. It is discovered that service consumers are still sometimes receiving malicious content from Service A. Because digital signatures are being used, it is confirmed that Service A is, in fact, the sender of these messages and that the messages are not being altered by any intermediaries. Why do messages from Service A continue to contain malicious content?

A service composition is made up of services from a particular domain service inventory. All of the services belonging to the domain service inventory are deployed on the same server. Service A is part of the same domain inventory but is not part of this service composition. Service A becomes a victim of an XML parser attack resulting in its unavailability. However, because the services in the service composition rely on the same XML parser used by Service A. the service composition can also be affected by this attack.

Service A expresses its requirement for message-layer security to service consumers via a security policy. Since the launch of Service A, its popularity has grown and it is decided that a fee should be charged for its use. Consequently, the design of Service A is changed so that it is capable of keeping a log of all request messages received from service consumers. The fact that Service A is logging all incoming messages is something that can also be expressed via a policy.