OMG UM0-401 OCRESâ„¢ Exam Questions Instant Access

Question 1

Which classes are DDS Entities? Select TWO.

AWait Set

BPublisher

CData Reader

DSubscriber Listener

EContent Filtered Topic

Answer : B, C

Question 2

Names in the Lightweight Naming Service are -------------

Aabsolute if they start with a slash '/' name component, else they are relative

Balways absolute to the service's root naming context

Calways relative to a naming context

Dalways local to a naming context; clients must iteratively traverse any hierarchy one step at a time

Answer : C

Question 3

The priority of a runnable task blocked on a resource request is temporarily changed to be the same as the priority of another task. Which two phrases could describe the new priority? (Choose two.)

AThe priority of the highest priority task

BThe priority of the lowest priority task which uses the resource

CThe priority of the higher priority task being blocked by the lower priority one

DThe ceiling priority of the resource on which the lower priority task is blocked

Answer : C, D

Question 4

If the ORB cannot map the configured range of priorities, CORBA::ORB_init will raise _____.

AINITIALIZE with minor code 1

BMARSHAL with minor code 4

CBAD_INV_ORDER with minor code 18

DDATA_CONVERSION with minor code 2

Answer : D

Question 5

What is the range of RT CORBA priorities?

A0 to 127

B0 to 255

C0 to 32767

D0 to 65535

Answer : C

Question 6

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

Apermit separation of concerns of lower layers (e.g., hardware) from higher layers (e.g., application)

Badd increasing efficiency to higher layers (e.g., application) than lower layers (e.g., hardware)

Care highly consistent in number and function among different protocols

Dprovide efficient application access to network hardware addresses

Answer : A

Question 7

Real-time CORBA-----------------

Ais based on POSIX Real-time extensions

Bextends POSIX Real-time extensions

Cis compatible with POSIX Real-time extensions

Drequires a POSIX operating system

Answer : C

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