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CDS practice questions - frequently asked questions

Plain answers about how CDS 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 CDS exam tests. Each one comes with a plain-language explanation of why the right answer is right and the others aren't.

The CDS exam spans 5 domains: SAFETY – Maintain a Safe Job Site (32% of the exam); ENVIRONMENTAL - Ensure Environmental Stewardship on Every Project (16% of the exam); OPERATIONAL METHODOLOGY - Ensure Effective Functioning of the Project (19% of the exam); PROJECT MANAGEMENT - Ensure effective administrative set up and standard operating procedures (15% of the exam); PEOPLE MANAGEMENT - Effective guidance of team members and the culture of the project (18% 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: SAFETY – Maintain a Safe Job Site 32%; OPERATIONAL METHODOLOGY - Ensure Effective Functioning of the Project 19%; PEOPLE MANAGEMENT - Effective guidance of team members and the culture of the project 18%; ENVIRONMENTAL - Ensure Environmental Stewardship on Every Project 16%; PROJECT MANAGEMENT - Ensure effective administrative set up and standard operating procedures 15%.

The CDS exam has 110 questions and is completed in 2 hours 30 minutes. Our timed practice mirrors that length and pacing, so exam day feels familiar.

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