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OCRES practice questions - frequently asked questions

Plain answers about how OCRES Exam Prep works: the exam, the questions, pricing, the free trial, and what you actually get.

No - and you should be wary of any site claiming otherwise. Every question here is original, written to mirror the style, difficulty, and judgment the real OCRES exam tests. Each one comes with a plain-language explanation of why the right answer is right and the others aren't.

The OCRES exam spans 10 domains: Software Engineering for Real-time Systems (13% of the exam); OMG MDA Guide (9% of the exam); UML Profile for Schedulability, Performance, and Time (11% of the exam); UML Profile for Quality of Service and Fault Tolerance (10% of the exam); Real-time CORBA, Dynamic Scheduling (13% of the exam); CORBA for Embedded (CORBA/e) (10% of the exam); Data Distribution Service (13% of the exam); Lightweight CORBA Component Model (8% of the exam); Deployment & Configuration (7% of the exam); Extensible Transport Frameworks (6% of the exam). Every practice question on this site is tagged to one of these domains.

The domains are not weighted equally on the exam. By share of the marks: Software Engineering for Real-time Systems 13%; Real-time CORBA, Dynamic Scheduling 13%; Data Distribution Service 13%; UML Profile for Schedulability, Performance, and Time 11%; UML Profile for Quality of Service and Fault Tolerance 10%; CORBA for Embedded (CORBA/e) 10%; OMG MDA Guide 9%; Lightweight CORBA Component Model 8%; Deployment & Configuration 7%; Extensible Transport Frameworks 6%.

The OCRES exam has 90 questions and is completed in 1 hours 30 minutes. Our timed practice mirrors that length and pacing, so exam day feels familiar.

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