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Last Updated: Sep 14, 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
Certificate Validity Period:Not explicitly defined by OMG (certification validity not publicly fixed)
Exam Duration:90 minutes
Exam Format:Multiple Choice
Related Certifications:OCRES Advanced
OCUP 2 Foundation
Passing Score:40 (out of 90 questions minimum passing threshold as specified by OMG grading scheme)
Available Languages:English
Exam Price:USD 200
Real Exam Qty:90
Recommended Training:Software Engineering for Real-time Systems (Jim Cooling)
OMG OCRES Specification & Coverage Materials
Exam Registration:Pearson VUE OMG Exams Portal
OMG OCRES Program Page
Sample Questions:OMG UM0-401 Sample Questions
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:

SectionObjectives
Middleware and Distributed Systems- Real-time CORBA (including dynamic scheduling)
- CORBA for Embedded (CORBA/e)
- Lightweight CORBA services and components
OMG UML Profiles for Real-time Systems- Schedulability, Performance, and Time profile
- Quality of Service and Fault Tolerance profile
Deployment and Configuration- Deployment and configuration packaging standards
Data Distribution and Communication Standards- DLRL (Data Local Reconstruction Layer)
- Extensible transport frameworks
- Data Distribution Service (DDS)
Real-time and Embedded Systems Foundations- Real-time software engineering principles
- Model-driven architecture (MDA) concepts

Frequently Asked Questions About OMG Omg OCRES-Intermediate

The UM0-401 exam leads to the OMG Certified Real-time and Embedded Specialist (OCRES) certification, a Professional-level credential from OMG. It validates the skills measured by the OMG Omg OCRES-Intermediate syllabus and is a recognized step for IT professionals building their careers, and it sits alongside related credentials such as OCUP 2 Foundation, OCRES Advanced.

The OMG Omg OCRES-Intermediate exam includes 90 questions and gives you 90 minutes to complete them. That works out to a fairly tight pace, so reading each question carefully but decisively matters more than perfectionism. If a question stalls you, flag it and move on; banking the easier points first keeps time pressure from snowballing near the end. Before test day, run at least one full timed session with the Actualtests4sure practice test so the rhythm feels familiar rather than rushed.

You need 40 (out of 90 questions minimum passing threshold as specified by OMG grading scheme) to pass the UM0-401 exam, and the official registration fee is USD 200. Keep in mind that a failed attempt means paying the full fee again to retake the exam, so it pays to be honest with yourself before booking a seat. A practical benchmark: work through the 180 practice questions at Actualtests4sure until you can score comfortably above the passing line in timed mode, then schedule your exam.

OCUP 2 Foundation certification is required as a prerequisite (no strict order enforced, but required for OCRES certification completion). Because OMG may adjust its policies over time, we recommend confirming the latest requirements on the official exam page (official exam page) before you register.

You can sign up for the OMG Omg OCRES-Intermediate exam through any of the official registration channels below:

As for how the exam is delivered: Computer-based exam delivered via Pearson VUE testing centers.

OMG suggests the following training options for candidates preparing for OMG Omg OCRES-Intermediate:

Formal training is a solid foundation, and pairing it with the 180 practice questions from Actualtests4sure helps you turn that knowledge into exam-day confidence.

Yes. Actualtests4sure offers a free PDF demo of the OMG Omg OCRES-Intermediate material, so you can review the question style and answer quality before making a decision. Every purchase also includes 365 days of free updates, and after that period you can extend your updates at a 50% discount, which keeps your preparation current through 2026 and beyond.

If you take the OMG Omg OCRES-Intermediate exam within 60 days of your purchase and do not pass, Actualtests4sure offers a full refund under its Money Back Guarantee. To apply, send a scanned copy of your exam enrollment slip together with your official Score Report in PDF format within 2 days of the exam date, and your claim will be processed within 7 days. The guarantee applies only to the corresponding exam: attempts made within 3 days of purchase, exams downloaded but never actually taken, free materials, and expired orders are not eligible, and the candidate name must match the purchaser name. If you would rather not take a refund, you can exchange your product for two additional exam preparation products of equal value and keep the update service on your original purchase. Delivery itself is instant: your product is available for download right after payment and is also sent to your email within one minute, and if it has not arrived within 2 hours, contact our support team. There is no limit on how many computers you can install it on.

The OMG Omg OCRES-Intermediate syllabus is divided into 5 main domains, including Middleware and Distributed Systems, Real-time and Embedded Systems Foundations, Deployment and Configuration. Each domain carries a different share of the total score, so knowing where the weight sits helps you allocate your study time wisely. You will find the complete, up-to-date outline in the Exam Topics section above.

OMG Omg OCRES-Intermediate Sample Questions:

Question #1

CORBA/e compliance is defined as _____.

  • A. conformant to all profiles in the specification
  • B. Minimum CORBA and CORBA/e are considered equivalent
  • C. CORBA/e sets the maximum requirements for a compliant implementation
  • D. compliance to a profile means conformance with every prescription of the profile.
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

Question #2

Real-time CORBA-----------------

  • A. is based on POSIX Real-time extensions
  • B. requires a POSIX operating system
  • C. is compatible with POSIX Real-time extensions
  • D. extends POSIX Real-time extensions
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #3

A scheduler runs tasks to completion instead of pre-empting tasks by time slicing or according to priority. What two actions will occur? (Choose two.)

  • A. Minimize the task scheduling and context switching overheads
  • B. Honor the commitment made to complete the task once it has begun executing
  • C. Share the processor time fairly among ready tasks
  • D. Maximize the number of completed tasks per unit of time
Reveal Solution  Discussion  0

Correct Answer: A,B  🗳️

Question #4

In MDA practice, transformations from PIM to PSM-------------------- (Choose TWO.)

  • A. are always implemented in the QVT action language
  • B. may be automated
  • C. may be hand generated
  • D. are required for all systems
  • E. always produce executable code
Reveal Solution  Discussion  0

Correct Answer: B,C  🗳️

Question #5

Network protocol models are described as layers that--------------

  • A. permit separation of concerns of lower layers (e.g., hardware) from higher layers (e.g., application)
  • B. are highly consistent in number and function among different protocols
  • C. provide efficient application access to network hardware addresses
  • D. add increasing efficiency to higher layers (e.g., application) than lower layers (e.g., hardware)
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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