CST logo
Focused certification exam prep
About FAQ View plans
Questions, answered

CST practice questions - frequently asked questions

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

The CST exam spans 14 domains: Safety Procedures / Handling / Environmental Awareness; Computer Assembly and Disassembly; Motherboards / Mainboard and Buses / System Resources; Processor Characteristics; Additional Memory Characteristics; Secondary Storage Devices; Adapter Cards and Peripheral Devices; Input/Output (I/O) Ports; Power Concepts and Power Supplies; Basic Networking Concepts Applicable to Computer Service; Portables; Troubleshooting / Preventive Maintenance / Security Measures; Operating Systems (Windows™ 7, 8, 10, 11 / Linux / Apple mac™); File Management. Every practice question on this site is tagged to one of these domains.

The CST exam has 80 questions and is completed in 2 hours. Our timed practice mirrors that length and pacing, so exam day feels familiar.

Try 10 free questions View plans