Hardware & Operating Systems
15 free questions with worked answers, and 129 more in the full bank.
Free questions
A company requires all corporate laptops to have their hard drives encrypted to protect data in case of theft. Which Windows feature provides full volume encryption?
3 marks · Medium
Which edition of Windows 10/11 is the minimum requirement to join an Active Directory domain?
1 mark · Easy
A technician suspects a device driver is causing system instability. Which tool allows them to view hardware conflicts, update drivers, or roll back to a previous driver version?
4 marks · Hard
You run `sfc /scannow` and it reports `Windows Resource Protection found corrupt files but was unable to fix some of them`. What is the NEXT best step?
3 marks · Medium
A macOS user wants to restore a deleted file from two days ago. Which built-in utility should they use?
3 marks · Medium
A Linux admin needs to assign read, write, and execute permissions to the owner of a script, but only read and execute to the group and others. Which command achieves this?
4 marks · Hard
A user is trying to install an unverified application. A prompt appears asking for administrator credentials to allow the installation. What Windows security feature is triggering this prompt?
1 mark · Easy
A system administrator wrote a script to automate the creation of Active Directory users and saved it with a .ps1 extension. Which language was used?
3 marks · Medium
A user experiences a Blue Screen of Death (BSOD) with the stop code "IRQL_NOT_LESS_OR_EQUAL". What is the MOST common cause of this error?
4 marks · Hard
A technician has just finished replacing a faulty power supply in a user's PC and verified that it boots successfully into Windows. What is the FINAL step of the CompTIA troubleshooting methodology?
3 marks · Medium
A user wants to upgrade their Windows 10 Home PC to a version that supports Microsoft Hyper-V and remote desktop hosting. Which edition should they purchase?
1 mark · Easy
An administrator needs to enforce password complexity rules across all computers in a domain. Which Windows tool should they use?
3 marks · Medium
A technician is trying to format a stubborn USB drive that fails formatting in File Explorer. Which command-line tool allows for low-level partition management?
4 marks · Hard
A user wants to view the error logs for an application that keeps crashing. Which Windows utility provides detailed logs of system and application events?
1 mark · Easy
Which macOS utility is the equivalent of Windows File Explorer, used for browsing files and applications?
3 marks · Medium
More Hardware & Operating Systems questions (page 3 of 3)
Answers and explanations are in the full bank.
- A single 64-bit memory channel in estimate HW4-B1 operates at 2400 MT/s. Ignoring overhead, what theoretical bandwidth follows? · 1 mark
- Memory block HW4-U1 is 16 MiB. How many bytes does that equal? · 1 mark
- Storage design HW4-R1-1 uses 4 equal 1 TB drives as 2 RAID 1 mirror pairs. What total usable capacity results? · 1 mark
- Array HW4-R5-1 combines 4 equal 2 TB drives in RAID 5. What approximate usable capacity remains before formatting? · 1 mark
- System HW4-P1 estimates 75 W CPU, 150 W GPU, and 80 W remaining peak load. With 30% headroom, what minimum rounded-up 10 W PSU rating is calculated? · 1 mark
- UPS model HW4-Q1 has 600 Wh nominal energy, 78% usable efficiency, and 250 W load. What idealized runtime is calculated? · 1 mark
- Equal-interval CPU readings HW4-C1 are 25%, 45%, and 65%. What arithmetic mean do they produce? · 1 mark
- Simplified memory case HW4-V1 has 8 GB RAM and 4 GB page-file capacity. Ignoring reserved space, what approximate commit limit is available? · 1 mark
- Endpoint dashboard HW4-K1 lists 80 systems and 75 successfully patched. What compliance percentage is shown? · 1 mark