Actual questions ensure 100% passing

Before purchase our SOA Certification S90.20 exam dumps, many customers often consult us through the online chat, then we usually hear that they complain the dumps bought from other vendors about invalid exam questions and even wrong answers. We feel sympathy for that. Actually, the validity and reliability are very important for the exam dumps. After all, the examination fees are very expensive, and all the IT candidates want to pass the exam at the fist attempt. So, whether the questions is valid or not becomes the main factor for IT candidates to choose the exam dumps. SOA S90.20 practice exam torrent is the most useful study material for your preparation. The validity and reliability are without any doubt. Each questions & answers of S90.20 SOA Security Lab latest exam dumps are compiled with strict standards. Besides, the answers are made and edited by several data analysis & checking, which can ensure the accuracy. Some questions are selected from the previous actual test, and some are compiled according to the latest IT technology, which is authoritative for the real exam test. What's more, we check the update every day to keep the dumps shown front of you the latest and newest.

I want to say that the S90.20 actual questions & answers can ensure you 100% pass.

As a layman, people just envy and adore the high salary and profitable return of the IT practitioner, but do not see the endeavor and suffering. But as the IT candidates, when talking about the S90.20 certification, you may feel anxiety and nervous. You may be working hard day and night because the test is so near and you want to get a good result. Someone maybe feel sad and depressed for the twice failure. Not getting passed maybe the worst nightmare for all the IT candidates. Now, I think it is time to drag you out of the confusion and misery. Here, I will recommend the SOA Certification S90.20 actual exam dumps for every IT candidates. With the help of the S90.20 exam study guide, you may clear about the knowledge and get succeeded in the finally exam test.

S90.20 exam free demo is available for every one

Free demo has become the most important reference for the IT candidates to choose the complete exam dumps. Usually, they download the free demo and try, then they can estimate the real value of the exam dumps after trying, which will determine to buy or not. Actually, I think it is a good way, because the most basic trust may come from your subjective assessment. Here, SOA S90.20 exam free demo may give you some help. When you scan the S90.20 exam dumps, you will find there are free demo for you to download. Our site offer you the S90.20 exam pdf demo, you can scan the questions & answers together with the detail explanation. Besides, the demo for the vce test engine is the screenshot format which allows you to scan. If you want to experience the simulate test, you should buy the complete dumps. I think it is very worthy of choosing our S90.20 actual exam dumps.

SOA S90.20 braindumps Instant Download: Our system will send you the S90.20 braindumps file you purchase in mailbox in a minute after payment. (If not received within 12 hours, please contact us. Note: don't forget to check your spam.)

SOA Security Lab Sample Questions:

1. Service Consumer A sends a request to Service A (1). Service A replies with an acknowledgement message (2) and then processes the request and sends a request message to Service B (3). This message contains confidential financial data. Service B sends three different request messages together with its security credentials to Services C.
D.
and E (4, 5, 6). Upon successful authentication, Services C.
D. and E store the data from the message in separate databases (7.8, 9). Services B.
C.D, and E belong to Service Inventory A, which further belongs to Organization B.
Service Consumer A and Service A belong to Organization A.

Organization B decides to create a new service inventory (Service Inventory B) for services that handle confidential data. Access to these services is restricted by allocating Service Inventory B its own private network. Access to this private network is further restricted by a dedicated firewall. Services C, D and E are moved into Service Inventory B, and as a result. Service B can no longer directly access these services.
How can this architecture be changed to allow Service B to access Services C, D and E in a manner that does not jeopardize the security of Service Inventory B while also having a minimal impact on the service composition's performance?

A) The Data Confidentiality pattern is applied together with the Direct Authentication pattern. A new utility service is created to validate request messages sent to Service Inventory B.
Service B must encrypt the message content using the utility service's public key and attach its own digital certificate to the request message. This message is first evaluated by the firewall to filter out requests from disallowed sources and can then be forwarded to the utility service, which then verifies the identity of the message originator (using a digital certificate) and decrypts the request message contents. If the originator is authorized to access Services C, D, and E, the appropriate request messages are sent to these services.
B) The Brokered Authentication pattern is applied by extending the firewall functionality with a single sign-on mechanism. Because the firewall already restricts accesses to Service Inventory B, adding authentication logic to the firewall optimizes the performance of the overall security architecture. Service B needs to be authenticated by the authentication broker only once in order to get a security token that can be used to access Services C, D, and E.
This eliminates the need for Service B to authenticate several times during the same service composition.
C) The Service Perimeter Guard pattern is applied together with the Brokered Authentication pattern. A new perimeter service is created to intercept all request messages sent to services inside the private network (inside Service Inventory B), before they reach the firewall. The perimeter service also acts as the authentication broker that authenticates request messages sent to Services C, D, and E by evaluating the accompanying security credentials and issuing a security token to be used by Service B when accessing Services C, D, and E.
D) The Service Perimeter Guard pattern is applied together with the Message Screening pattern. A new perimeter service is created specifically for Service Inventory B.
This service filters all messages before they reach the firewall and further evaluates the IP address of the messages to verify the identity of the message originators. If the originator is successfully authenticated, then the perimeter guard checks the request message for potentially malicious content. If the request message does not contain malicious content, it is sent through the firewall to proceed to Services C, D, and E for further processing.

2. Service Consumer A sends a request message to Service A (1), after which Service A sends a request message to Service B (2). Service B forwards the message to have its contents calculated by Service C (3). After receiving the results of the calculations via a response message from Service C (4), Service B then requests additional data by sending a request message to Service D (5). Service D retrieves the necessary data from Database A (6), formats it into an XML document, and sends the response message containing the XML-formatted data to Service B (7). Service B appends this XML document with the calculation results received from Service C, and then records the entire contents of the XML document into Database B (8). Finally, Service B sends a response message to Service A (9) and Service A sends a response message to Service Consumer A (10).
Services A, B and D are agnostic services that belong to Organization A and are also being reused in other service compositions. Service C is a publicly accessible calculation service that resides outside of the organizational boundary. Database A is a shared database used by other systems within Organization A and Database B is dedicated to exclusive access by Service B.

Recently, Service D received request messages containing improperly formatted database retrieval requests. All of these request messages contained data that originated from Service C.
There is a strong suspicion that an attacker from outside of the organization has been attempting to carry out SOL injection attacks. Furthermore, it has been decided that each service that writes data to a database must keep a separate log file that records a timestamp of each database record change. Because of a data privacy disclosure requirement used by Organization A, the service contracts of these services need to indicate that this logging activity may occur.
How can the service composition architecture be improved to avoid SQL injection attacks originating from Service C - and - how can the data privacy disclosure requirement be fulfilled?

A) Apply the Service Perimeter Guard pattern together with the Message Screening pattern in order to establish a perimeter service with message screening logic. Position the perimeter service between Service C and Service B.
The message screening logic rejects or filters out potentially harmful content in messages sent from Service C, prior to being forwarded to Service B.
Secondly, update the service contracts for Services B and D with an optional WS-Policy assertion that provides service consumers with the option of complying to the logging requirements.
B) Apply the Data Origin Authentication pattern to authenticate data received from Service C.
Service C digitally signs any data sent in response messages to Service B.
Service B can then verify that the data has not been modified during transit and that it originated from Service C.
Secondly, update the service contracts for Services B and D with an ignorable WS-Policy assertion that communicates the possibility of the logging activity. The service contracts for Services B and D are updated with an optional WS-Policy assertion that provides service consumers with the option of complying to the logging requirements.
C) Apply the Data Origin Authentication pattern to authenticate data received from Service C.
Service C digitally signs any data sent in response messages to Service B.
Service B can then verify that the data has not been modified during transit and that it originated from Service C.
Secondly, update the service contracts for Services B and D with an ignorable WS-Policy assertion that communicates the possibility of the logging activity.
D) Apply the Message Screening pattern in order to establish a service agent with message screening logic. Position the service agent between Service C and Service B.
The service agent's message screening logic can reject or filter out potentially harmful content in messages sent from Service C, before being processed by Service B.
Secondly, update the service contracts for Services B and D with an ignorable WS-Policy assertion that communicates the possibility of the logging activity.

3. Service A provides a customized report generating capability. Due to infrastructure limitations, the number of service consumers permitted to access Service A concurrently is strictly controlled. Service A validates request messages based on the supplied credentials (1). If the authentication of the request message is successful, Service A sends a message to Service B (2) to retrieve the required data from Database A (3). Service A stores the response from Service B (4) in memory and then issues a request message to Service C (5). Service C retrieves a different set of data from Database A (6) and sends the result back to Service A (7). Service A consolidates the data received from Services B and C and sends the generated report in the response message to the service consumer (8).

It has been discovered that attackers have been gaining access to confidential data exchanged between Service A and Service B, and between Service A and its service consumers. What changes can be made to this service composition architecture in order to counter this threat?

A) None of the above
B) Apply the Data Origin Authentication pattern to protect the final report sent by Service A to its service consumer. Service A can generate a message digest of the final report, after which it can sign the digest with its own private key. It then can send both the final report and the signed message digest to its service consumer. This service consumer can generate its own message digest, decrypt the signed digest using the public key of Service A (which proves that Service A sent the message), and then compare the two digests. If the digests match, it guarantees that the final report was not tampered with during transmission.
C) Apply the Direct Authentication pattern in order to protect message exchanges between Service A and its service consumers and between Service A and Service B.
This approach will establish a password-based authentication mechanism that relies on a local identity store and will therefore prevent access by attackers.
D) Apply the Service Perimeter Guard pattern in order to protect message exchanges between Service A and its service consumers. Apply the Direct Authentication pattern in order to protect message exchanges between Service A and Service B.

Solutions:

Question # 1 Answer: C

Question # 2 Answer: D

Question # 3 Answer: A