512 questions with instant explanations, domain breakdown, and wrong-answer analysis. Built for the real exam.
This is exactly what you see during practice — question, options, and a full explanation after you answer.
A user reports that their computer is running slowly and the hard drive activity light is constantly on. The technician checks Task Manager and sees that disk usage is at 100%. What is the most likely cause?
When RAM is insufficient, the operating system compensates by using a portion of the hard drive as virtual memory (the page file). This causes constant swapping of data between RAM and the disk, resulting in 100% disk usage and a continuously active hard drive light. Task Manager…Read full explanation
A technician is setting up a small office network. Which device should be used to connect multiple computers and allow them to communicate with each other?
A switch operates at Layer 2 of the OSI model and uses MAC addresses to forward frames only to the specific port where the destination device is connected. This allows multiple computers on the same local network to communicate directly with each other without unnecessary traffic…Read full explanation
A user wants to ensure that a document cannot be edited by others. Which file property should be set?
The read-only property prevents users from modifying or deleting the file's contents, as it restricts write access to the file. When set, any attempt to edit and save the document will result in an error unless the file is saved with a new name or the property is cleared. This is…Read full explanation
Answer at your own pace. Explanation and domain tag shown immediately after each answer.
Countdown timer starts immediately. Results and domain scores shown at the end — just like the real exam.
Full explanations on every question
Not just the right answer — you get exactly why each wrong option is wrong, so you learn the concept, not the answer.
Domain score breakdown
After each session see your score by exam domain so you know exactly where to focus study time.
100% free, forever
No subscription, no trial, no email wall. Start a session in under 10 seconds.
Exam-style questions
Scenario-based, precise wording, realistic distractors — written to match what you actually see on exam day.