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OMG OMG-OCRES-A300 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Real-Time CORBA & CORBA/e | 25% | - Extensible Transport Framework - Real-time CORBA with dynamic scheduling - CORBA for Embedded (CORBA/e) specifications |
| Topic 2: MDA Guide & Modeling Standards | 20% | - MDA architecture and transformations - UML Profile for Quality of Service and Fault Tolerance (QoS/FT) - UML Profile for Schedulability, Performance and Time (SPT) - PIM, PSM, and platform modeling |
| Topic 3: Lightweight CORBA Component Model (LwCCM) | 15% | - Component model and deployment - Deployment and Configuration specification |
| Topic 4: Real-Time Software Engineering | 20% | - Schedulability and timing analysis - Real-time system principles - Fault tolerance and reliability |
| Topic 5: Data Distribution Service (DDS) | 20% | - DCPS core model - Data Local Reconstruction Layer (DLRL) |
OMG-Certified Real-time and Embedded Systems Specialist Advanced Sample Questions:
1. What is one difference between service level software and application level software?
A) Application level software provides the functionality and behavior required of the system while service
level software provides application-independent functionality.
B) Application level software always forms the core "building bricks" of software systems while service
level software is always portable across different hardware.
C) Service level software always provides real-time guarantees on execution time, while application level
software does not.
D) Service level software always provides the same set of operations regardless of environment, while
application level software provide a consistent programming interface.
2. Which statement is true about RT CORBA connections?
A) Priorities must be set by the clients.
B) Priority-based handling of requests can be established for multiple shared connections.
C) Scheduling policy mechanisms are explicitly called out by the standard.
D) All connections must be shared by individual clients.
3. Which two are valid distributable thread operations? (Choose two.)
A) suspend_scheduling_segment
B) cancel_scheduling_segment
C) begin_scheduling_segment
D) update_scheduling_segment
E) resume_scheduling_segment
4. Which is NOT a valid attribute of the DLRL ObjectRoot class?
A) read_state
B) oid
C) error_state
D) write_state
5. When defining a new Policy that is passed as an argument to POA::create_POA, which piece of
information must be provided?
A) conditions under which the policy can be over-ridden or modified on the client side
B) a description of incompatibilities with existing POA policies
C) a description of any incompatibilities with server side policies
D) an indication that the POA policy implies changes to the object reference, denoted by the marking
"server-exposed"
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: B | Question # 3 Answer: C,D | Question # 4 Answer: C | Question # 5 Answer: B |








