OMG-Certified Real-time and Embedded Systems Specialist Advanced Sample Questions:

1. The parameters time-between-failures and time-to-repair are associated with which
<<QoSCharacteristic>>?

A) availability
B) faulttolerant
C) reliability
D) safety

2. Which method should inter-processor communications in a distributed system use?

A) shared files and devices
B) shared communication links
C) message passing
D) procedure or function calls

3. Which statement is true when domains are modeled using the Profile for SPT?

A) In performance-related models, each scenario is executed by a job class or user class which is
identical to other UML Classes.
B) Resources are modeled as servers with passive resources being the usual servers in performance
models that are acquired and released during scenarios, and have holding times.
C) Scenario steps are the elements of scenarios, and are joined in a sequence, with
predecessor-successor relationships that may include forks, joins, and loops.
D) Performance measures for a system include only the combined waiting times, execution demands and
response time for the resources.

4. Which statement is true about a Priority Banded Connection policy?

A) It can be applied from the client or server side.
B) It can be applied only from the server side.
C) It can be propagated from the server to the client in an IOR.
D) It can only be propagated from the client side in an IOR.

5. Which is a characteristic of a Connection object presented to the message layer by a plugged in
transport?

A) Bi-directional
B) Multithreaded
C) Oneway
D) Un-reliable

Solutions: