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Free OMG UM0-401 Exam Actual Questions

The questions for UM0-401 were last updated On Nov 6, 2024

Question No. 1

Which two of these techniques would successfully avoid mutual exclusion deadlocks? (Choose two.)

ASet up a circular dependency of tasks and resources

BAllow a task's use of a resource to be pre-empted

CRequire tasks to acquire and use only one resource at a time

DRequire tasks to acquire resources in order of the tasks' priorities

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Correct Answer: B, C

Question No. 2

Which two are POSIX real-time extensions? (Choose two.)

Asuspend / resume API's

Bdirect cyclic executive support

Ctask synchronization

Dpriority-based preemptive task scheduling

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Correct Answer: C, D

Question No. 3

Which notion is at the core of the General Resource Modeling (GRM) framework?

Adeadline monotonic analysis

Bquality of service

Crate monotonic analysis

Dstimulus / response

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Correct Answer: B

Question No. 4

In RT CORBA, what happens when the Priority Model is applied to a RT POA on the client side?

AThe client's CORBA priority is published in its object reference.

BThe client's CORBA priority is made available to the server-side ORB.

CThe client's CORBA priority is applied to executing threads after mapping to the native priority.

DThe client's CORBA priority is unaffected by the priority inheritance policies of the underlying RTOS.

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Correct Answer: C

Question No. 5

In the MDA Foundation Model, a Transformation Record ___

Ais one entry in a Transformation Specification

Bis the aggregation of all Transformation Specification Elements

Cprovides a record of the inverse mapping transformation used to recover a model

Dtraces groups of input model items to the groups of model items into which they are transformed

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Correct Answer: D