Free Cloud Technology Concepts Exam C90.02 Exam Practice Test

Which of the following IT resources are examples of multi-device brokers?

• An XML gateway that performs runtime transformation of messaging protocols.
• A cloud storage gateway that performs runtime transformation of cloud storage device protocols.
• A middleware product that performs runtime transformation of XML schemas.
• All of the above.

Information that is encrypted is referred to as .

• cleartext
• ciphertext
• plaintext
• secret text

Which of the following can be the result of a successful malicious intermediary attack?

• The confidentiality of a message is comprised.
• The integrity of a message is comprised.
• Private or sensitive data within a message is accessed by the attacker.
• Harmful data is inserted into a message.

Messages being sent from a cloud service consumer to a cloud service are intercepted and maliciously altered by an intermediary service. This is an example of which cloud security threat?

• denial of service
• insufficient authorization
• virtualization attack
• None of the above.

A is a mechanism used to temporarily persist certain types of data as an alternative to caching the data in memory.

• resource replicator
• state management database
• failover system
• multi-device broker

Which of the following statements are true about the state management database mechanism?

• Software programs can off-load state data to a state management database in order to reduce the amount of runtime memory they consume.
• The use of a state management database can improve scalability.
• State management databases rely on the use of virtualization software.
• The use of state management databases requires a ready-made environment.

A cloud service built as a SOAP-based Web service will have a service contract that is physically decoupled from the service's logic.

• True
• False

A virtual server is being attacked by a malicious cloud service consumer that is generating increased usage loads upon the underlying physical server. As a result, other virtual servers being hosted by the physical server are becoming unavailable to other cloud service consumers. This kind of attack is known as: .

• denial of service
• overlapping trust boundary
• insufficient authorization
• buffer overrun

We are building a new service composition comprised of two on-premise services and two cloud services. What type of testing should we perform in order to ensure specifically that the on-premise and cloud-based services can interact as required?

• virtual testing
• integration testing
• stability testing
• regression testing

REST services share a uniform contract and therefore cannot be deployed in cloud environments without a multi-device broker mechanism.

• True
• False