OMG UM0-401 OCRES Exam Practice Test Instant Access

Question 1

In the Lightweight Event Service the interactions between consumers and the event channel is one where consumers _____.

Aconnect to an Event Channel via a Proxy Push Supplier

Bshare a connection to an Event Channel through a common Proxy Push Supplier

Creceive event data from a supplier where the data is passed as a character string

Duse the Consumer Admin interface to access any subset of Event Service operations

Answer : A

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

What time scales does the Lightweight Time Service support? (Choose two.)

AEphemeris time

BGlobal Positioning System Time

CTerrestrial Dynamical Time

DInternational Atomic Time

Answer : B, D

Question 4

In the Lightweight Naming Service, the "id" and "kind" attributes that make up a Name Component are ___.

Aarbitrary octet sequences

Bstrings up to a maximum length of 255 characters

Carbitrary-length strings in the service's local character set

Dstrings of ISO Latin-1 characters, excluding the NUL character

Earbitrary-length Unicode strings of type 'Istring', excluding the NUL character

Answer : D

Question 5

In the Lightweight Time Service, what is the resolution of clocks?

AThe clock resolution shall be 100 nanoseconds.

BThe clock resolution shall be 100 nanoseconds or less.

CThe clock resolution shall be at least 100 nanoseconds.

DThe clock resolution is implementation-defined.

EThe clock resolution shall be equal to the CPU clock cycle rate.

Answer : D

Question 6

Which two actions occur with event flag groups? (Select two.)

AFlags must be single bits within a single word.

BA task can broadcast signals to multiple tasks.

CSignal senders and receivers must wait for signals to arrive.

DA task can wait on any combination of more than one signal.

Answer : B, D

Question 7

Which two phrases are true of a binary semaphore?

Ahas higher overhead than a monitor

Bhas a queue for each task priority level

CWAIT and SIGNAL can occur in either order

Dneed not be associated with any specific resource

Answer : C, D

OMG UM0-401 OMG Certified Real-time and Embedded Specialist? OCRES? Exam Practice Test