OMG-Certified Real-time and Embedded Systems Specialist Intermediate Exam

Question 1

What are three valid operations on the Lightweight Naming Service NamingContext? (Choose three.)

A. resolve()

B. restore()

C. bind()

D. context_bind()

E. destroy()

Correct Answer: A,C,E

Question 2

Which example is NOT one of the MDA standard specification categories?

A. Language specification

B. Data model specification

C. Application specification

D. Service specification

Correct Answer: C

Question 3

The NamingContext interface---------------------

A. creates a context for a name so that they can be grouped by binding types

B. resolves naming exceptions where matching does not have to be exact

C. binds a name to an object where names are case insensitive strings

D. supports building and iterating through a list of bindings contained in a naming context

Correct Answer: D

Question 4

Which two of these correctly characterise "end to end" predictability in a fixed priority CORBA system?
(Choose TWO)

A. respecting thread priorities between CORBA clients and servers

B. minimizing the latencies of operation invocations

C. bounding the duration of thread priority inversions during end-to-end processing

D. bounding the duration of memory access times

Correct Answer: A,C

Question 5

Dynamic scheduling includes utility based or _____ scheduling.

A. continuous based

B. variable based

C. economic based

D. value based

Correct Answer: D

Question 6

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

A. A task executing in RAM can also execute code that is stored on the disk.

B. Only data is stored on the disk and code is stored in RAM.

C. 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.

D. The operating system must prevent each task in RAM from accessing RAM outside the area reserved
for it.

Correct Answer: C,D

Question 7

Which one of these items is a valid value for the LIVELINESS QoS policy?

A. MANUAL_BY_PUBLISHER

B. MANUAL_BY_SUBSCRIBER

C. MANUAL_BY_PARTICIPANT

D. MANUAL_BY_LISTENER

Correct Answer: C

Question 8

Which of the following can be controlled using RT CORBA? (Choose two)

A. number of CORBA objects

B. thread pools

C. memory addresses

D. transport connections

Correct Answer: B,D

Question 9

Which classes are DDS Entities? Select TWO.

A. Publisher

B. SubscriberListener

C. DataReader

D. ContentFilteredTopic

E. WaitSet

Correct Answer: A,C

OMG-Certified Real-time and Embedded Systems Specialist Intermediate - OMG-OCRES-I200 Exam Practice Test

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