OMG UM0-401 OCRES™ Exam Practice Test Instant Access

Question 1

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 2

An example of a module exhibiting temporal cohesion is a combination of-------

Athe control and management of two onboard hardware clocks

Ba 40 millisecond periodic navigation function and a 40 millisecond periodic display update function

Cseveral mathematical functions such as the sine, cosine, and arctangent functions

Dthe vehicle speed and acceleration management functions

Answer : B

Question 3

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 4

What is the general concurrency model based on?

Aevent model

Bscenario model

Ccausality model

Dresource model

Answer : C

Question 5

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.

Answer : C

Question 6

What does the resolve operation on the Lightweight Naming Service Naming Context do? (Choose two.)

Amay raise 'NotFound', 'InvalidName', or 'AlreadyBound' exceptions

Bretrieves an object bound to a name

Cdeals with names traversing multiple contexts

Dcan resolve differences between a given name and an object name

Answer : B, C

Question 7