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Last Updated: Sep 20, 2026
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OMG UM0-401 Exam Overview:
| Certification Vendor: | Object Management Group (OMG) |
|---|---|
| Exam Name: | OCRES Intermediate Examination |
| Exam Number: | UM0-401 |
| Exam Price: | USD 200 |
| Exam Format: | Multiple Choice |
| Certificate Validity Period: | Not explicitly defined by OMG (certification validity not publicly fixed) |
| Related Certifications: | OCUP 2 Foundation OCRES Advanced |
| Real Exam Qty: | 90 |
| Passing Score: | 40 (out of 90 questions minimum passing threshold as specified by OMG grading scheme) |
| Exam Duration: | 90 minutes |
| Available Languages: | English |
| Recommended Training: | Software Engineering for Real-time Systems (Jim Cooling) OMG OCRES Specification & Coverage Materials |
| Exam Registration: | OMG OCRES Program Page Pearson VUE OMG Exams Portal |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Computer-based exam delivered via Pearson VUE testing centers |
| Pre Condition: | OCUP 2 Foundation certification is required as a prerequisite (no strict order enforced, but required for OCRES certification completion). |
| Official Syllabus URL: | https://www.omg.org/ocres/intermediate.htm |
OMG UM0-401 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Real-time and Embedded Systems Foundations | - Model-driven architecture (MDA) concepts - Real-time software engineering principles |
| Middleware and Distributed Systems | - Real-time CORBA (including dynamic scheduling) - CORBA for Embedded (CORBA/e) - Lightweight CORBA services and components |
| Deployment and Configuration | - Deployment and configuration packaging standards |
| Data Distribution and Communication Standards | - Extensible transport frameworks - DLRL (Data Local Reconstruction Layer) - Data Distribution Service (DDS) |
| OMG UML Profiles for Real-time Systems | - Schedulability, Performance, and Time profile - Quality of Service and Fault Tolerance profile |
UM0-401 Exam Facts, Digital Convenience and Global Support
- OMG UML Profiles for Real-time Systems ()
- Middleware and Distributed Systems ()
- Real-time and Embedded Systems Foundations ()
OMG Omg OCRES-Intermediate Sample Questions:
Which two elements are part of the Causality Model Package? (Choose two.)
- A. Event Occurrence
- B. Scenario Instance
- C. Effect Generation
- D. Stimulus Reception
Correct Answer: A,D 🗳️
When using a thread pool with lanes, and borrowing has been allowed, a lane which exhausts its maximum number of threads can borrow what? (Choose TWO)
- A. It can borrow a dynamic thread of a lower priority lane
- B. It can borrow a static thread of an upper priority lane
- C. It can borrow a dynamic thread of an upper priority lane
- D. It can borrow a static thread of a lower priority lane
Correct Answer: A,D 🗳️
Which two of these are standard extensions provided by IIOP to support the mechanisms prescribed in Real-time CORBA? (Choose TWO.)
- A. IOR Tagged Components
- B. LOCATION_FORWARD
- C. Bi-directional IIOP
- D. Service Contexts
Correct Answer: A,D 🗳️
What is the schedulable resource that an action executes on?
- A. SResource
- B. Scheduler
- C. Host
- D. Scheduling job
Correct Answer: C 🗳️
The Lightweight Event Services Event Channel interface ---------------
- A. can be associated with multiple Supplier Admin or Consumer Admin objects
- B. requires manual invocation of the disconnect operation after a channel is destroyed
- C. can be used to add consumers and suppliers and destroy itself
- D. can interface directly or through a proxy with a Push Consumer
Correct Answer: C 🗳️
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