omg um0-401 practice test

A representative benchmark differs from a synthetic benchmark in that a-------------

• A. representative benchmark models a representative ideal application
• B. synthetic benchmark precisely predicts specific application performance
• C. representative benchmark models a real application's execution characteristics
• D. synthetic benchmark must be developed by the same team that will build the application

Network protocol models are described as layers that--------------

• A. permit separation of concerns of lower layers (e.g., hardware) from higher layers (e.g., application)
• B. add increasing efficiency to higher layers (e.g., application) than lower layers (e.g., hardware)
• C. are highly consistent in number and function among different protocols
• D. provide efficient application access to network hardware addresses

The primary requirement for an RTOS is to--------------

• A. maximize application speed and minimize memory utilization
• B. enable fast control and data transfer to critical system devices
• C. enable the application to meet both its functional and temporal requrements
• D. permit the application to efficiently access all resources (e.g., I/O and memory)

A strictly conforming POSIX application----------

• A. uses all POSIX functions and standard options
• B. uses only IEEE tested conforming operating systems
• C. uses only POSIX required API's for its OS functionality
• D. runs on all operating systems whose vendors claim POSIX conformance

Which statement accurately describes where a "mark" exists in the MDA model hierarchy?

• A. as part of the PSM
• B. as part of the PIM
• C. as part of a transparent layer placed over a PIM
• D. as part of a transparent layer placed over a PSM

In MDA practice, transformations from PIM to PSM---------------- (Choose TWO.)

• A. may be automated
• B. are required for all systems
• C. may be hand generated
• D. always produces executable code
• E. are always implemented in the QVT action language

What does the term "Platform independence" mean?

• A. The application model can be moved to every other platform that is available.
• B. The application model is independent of the features of any particular platform from some class of platforms.
• C. The application is written in a high-level programming language such as Java or C++.
• D. The application model is independent of the hardware platform where the application may be deployed.

What is an "implementation model"?

• A. A PIM that provides all of the information needed to construct a system and put it into operation.
• B. A model that includes C++ source code for all classes in the model.
• C. A PSM that provides all of the information needed to construct a system and put it into operation.
• D. A file that is executable on some computer system.

What two functions does the Model transformation specification provide? (Choose TWO.)

• A. Always prescribes a one-to-one mapping from input model elements to output model elements.
• B. Prescribes the transformations that merge a set of models to produce another set of models.
• C. Are implemented using the OMG standard Model Transformation language.
• D. Prescribes the transformation of one model to another model.

A Meta model is a-------

• A. set of UML templates for drawing system models
• B. special kind of model that specifies a modeling language
• C. collection of stereotypes and classes that define a set of architectural patterns
• D. conceptual pattern for a class of application systems