UM0-401 by OMG Actual Free Exam Q&As

Question 1

The basic time model consists of six (6) entities. Five of the six are Physical Time, Clock, PhysicalInstant, TimeValue, Duration. What is the sixth one?

A. Time Interval B. Timer C. Time Instance D. Deadline

Discussion 0

Correct Answer: A Vote an answer

Question 2

The Lightweight Event Service provides an interface for ___.

A. event consumers to request (poll) events from event suppliers B. storing events in an event channel, from which they are polled by listeners C. an asynchronous, one-to-one, first-in, first-out (FIFO) event channel D. suppliers to push events to an event channel, which in turn pushes events to consumers

Discussion 0

Correct Answer: D Vote an answer

Question 3

What two specific profiles does the CORBA/e specification define? (Choose two.)

A. High Performance Profile B. Micro Profile C. Real Time (Static Scheduling) Profile D. CORBA Component Model Profile E. Fault Tolerant Profile F. Compact Profile

Discussion 0

Correct Answer: B,F Vote an answer

Question 4

In RT CORBA, Priority Model Policy set to SERVER_DECLARED causes priority to be _____.

A. propagated from the client and thepriority_model_policy_type to be set to 40 B. propagated from the server and subject to being over-ridden C. declared by the client and applied to invocations of non-RT ORBs D. declared by the server and threads to run at the native priority

Discussion 0

Correct Answer: B Vote an answer

Question 5

Which statement is true about an object's interface?

A. It provides a semantic description of the services. B. The principal interface consists of all operations in the associative closure of its inheritance graph. C. It can support inheritance. D. The principal interface is the least-specific interface the object supports.

Discussion 0

Correct Answer: C Vote an answer

Question 6

Which statement is NOT true?

A. If the views of a system are consistent they can all be satisfied by the same system. B. The views in a correct system model do not have model elements in common (i.e. the views do not overlap). C. A model of a system from a given viewpoint is a view of the system from that viewpoint. D. A view is a representation of a system from the perspective of a related set of concerns.

Discussion 0

Correct Answer: B Vote an answer

Question 7

When using a thread pool with lanes, and borrowing has been allowed, a lane which exhausts its maximum number of threads can borrow what? (Choose TWO)

A. It can borrow a dynamic thread of a lower priority lane B. It can borrow a static thread of a lower priority lane C. It can borrow a static thread of an upper priority lane D. It can borrow a dynamic thread of an upper priority lane

Discussion 0

Correct Answer: A,B Vote an answer

Question 8

Why would a real-time application be designed to be POSIX conformant?

A. because the application is being developed on a POSIX-compliant Windows system, so debugging is easy B. to enhance the probability that the application could be moved to other platforms C. because the POSIX interfaces guarantee meeting application time constraints D. to meet the tight memory requirements of a small embedded processor

Discussion 0

Correct Answer: B Vote an answer

Question 9

What two actions must occur in systems that use overlaying with a disk drive backing store? (Choose two.)

A. The operating system must prevent each task in RAM from accessing RAM outside the area reserved for it. B. A task executing in RAM can also execute code that is stored on the disk. C. Only data is stored on the disk and code is stored in RAM. D. The code for the currently executing tasks is stored in RAM and that for the currently inactive tasks is stored on the disk, as managed by the operating system.

Discussion 0

Correct Answer: A,D Vote an answer

Question 10

How are exceptions managed in Real-time CORBA?

A. managed using CORBA Standard System Exceptions with minor codes specialized for Real-time CORBA B. managed entirely using CORBA Standard System Exceptions C. not specified D. managed using specific RTCORBA Exceptions

Discussion 0

Correct Answer: A Vote an answer

OMG Omg OCRES-Intermediate - UM0-401 Exam Practice Test