Try OMG : OMG-OCRES-A300 practice torrent pass for sure
Updated: Sep 03, 2026
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OMG OMG-OCRES-A300 Exam Overview:
| Certification Vendor: | OMG (Object Management Group) |
|---|---|
| Exam Name: | OMG-Certified Real-time and Embedded Systems Specialist Advanced Exam |
| Exam Number: | OMG-OCRES-A300 (also known as UM0-411) |
| Related Certifications: | OMG-Certified Real-time and Embedded Systems Specialist (OCRES) Intermediate OMG-Certified UML Professional 2 (OCUP 2) Fundamental |
| Exam Format: | Multi-response, Includes text and UML diagrams, Multiple-choice |
| Exam Price: | USD 200 - 210 |
| Available Languages: | English, Japanese (limited availability) |
| Real Exam Qty: | 90 |
| Exam Duration: | 90 (120 for non-English administrations) |
| Passing Score: | Approx. 63% (57/90) |
| Certificate Validity Period: | Lifetime (for the exam version taken) |
| Recommended Training: | OMG OCRES Official Resources Software Engineering for Real-time Systems (Textbook) |
| Exam Registration: | Pearson VUE OMG Exam Registration |
| Sample Questions: | OMG OMG-OCRES-A300 Sample Questions |
| Exam Way: | Computer-Based Testing (CBT) at Pearson VUE authorized centers |
| Pre Condition: | Pass OCUP 2 Fundamental and OCRES Intermediate exams |
| Official Syllabus URL: | https://www.omg.org/ocres/exam-info.htm |
OMG OMG-OCRES-A300 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Distribution Service (DDS) | 20% | - Data Local Reconstruction Layer (DLRL) - DCPS core model |
| Topic 2: Lightweight CORBA Component Model (LwCCM) | 15% | - Component model and deployment - Deployment and Configuration specification |
| Topic 3: Real-Time Software Engineering | 20% | - Real-time system principles - Schedulability and timing analysis - Fault tolerance and reliability |
| Topic 4: MDA Guide & Modeling Standards | 20% | - UML Profile for Schedulability, Performance and Time (SPT) - PIM, PSM, and platform modeling - MDA architecture and transformations - UML Profile for Quality of Service and Fault Tolerance (QoS/FT) |
| Topic 5: Real-Time CORBA & CORBA/e | 25% | - CORBA for Embedded (CORBA/e) specifications - Real-time CORBA with dynamic scheduling - Extensible Transport Framework |
OMG-Certified Real-time and Embedded Systems Specialist Advanced Sample Questions:
Question 1
Which listener is NOT defined in the DLRL?
A. SelectionListener
B. ObjectListener
C. CacheListener
D. ContractListener
Question 2
Which statement correctly describes the Lightweight Logging Service types and data structures?
A. LogTime has two fields of type long for microseconds and nanoseconds.
B. The AdministrativeState can be set to locked or unlocked.
C. When the OperationalState is DISABLED, the log is still available for use by log producers.
D. The InvalidParam exception indicates that all provided parameters were invalid.
Question 3
In the CORBA Component Model, an event sink port has which characteristic?
A. The component implementation can specify a filter to receive events of certain types only.
B. The component implementation can selectively indicate readiness to receive events.
C. It may be associated with an arbitrary number of event sources.
D. It can be subscribed to a single event channel only.
Question 4
The parameters time-between-failures and time-to-repair are associated with which
<<QoSCharacteristic>>?
A. availability
B. faulttolerant
C. reliability
D. safety
Question 5
Which statement describes a scheduling discipline?
A. "Earliest Deadline First" only satisfies the soft real-time criterion minimize number of missed
deadlines".
B. "Least Laxity First" requires the knowledge of estimated execution time for each thread.
C. "Fixed Priority" is the only scheduling discipline that allows hard real time requirements to be met.
D. "Maximum Accrued Utility" associates a utility function with each thread in order to create a dispatching
rule.
Solutions:
| Question 1 Answer: D | Question 2 Answer: B | Question 3 Answer: C | Question 4 Answer: A | Question 5 Answer: B |
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