What is the role of a device driver in an operating system?

To store data from the device on the hard drive

To manage the power supply to the device

To physically connect hardware devices to the computer

To provide a software interface between the OS and a hardware device

A user complains that their computer becomes very slow when they have many applications open, and the hard drive light is constantly active. The system has 4 GB of RAM. What is the most likely cause?

The CPU is overheating and throttling its speed

The system is using virtual memory heavily because physical RAM is insufficient

The device drivers are outdated and causing hardware conflicts

The file system is fragmented and needs defragmentation

A user connects a new external graphics card to their Windows PC, but the system does not recognize it. The card is known to work on other computers. What is the most likely cause?

The device driver for the graphics card is not installed or is outdated

The CPU is too slow to support the graphics card

The file system is not compatible with the graphics card

The system's RAM is insufficient for the graphics card

A user has 8 GB of RAM and tries to open a large video editing application that requires 12 GB. The system does not crash and the application opens, though performance is slower. Which operating system feature allows this to happen?

Device drivers that compress memory data

Process scheduling that prioritizes the video editing application

File system caching that stores application data in free disk space

Virtual memory using a portion of the hard drive as an extension of RAM

CompTIATech+

Domain 3Objective 1

Operating Systems FC0-U71 Practice Questions (Page 5)

Part of the Applications and software domain, which accounts for 18% of the FC0-U71 exam. CompTIA does not publish an official question count, but from its 60-minute exam (~25–40 total, ~5–7 in this domain), expect 1–1 from this objective — we provide 37 practice questions to prepare you well beyond it. (estimate)

37questions here

8free pages

10concepts

18%of the exam

Questions 21–25

21application · medium
An employee's laptop is stolen. The laptop contains sensitive customer data stored in files. Which operating system feature would best protect the data from being accessed by the thief?
Select an answer first
22foundation · easy
What is the role of a device driver in an operating system?
Select an answer first
23application · medium
A user complains that their computer becomes very slow when they have many applications open, and the hard drive light is constantly active. The system has 4 GB of RAM. What is the most likely cause?
Select an answer first
24expert · hard
A user connects a new external graphics card to their Windows PC, but the system does not recognize it. The card is known to work on other computers. What is the most likely cause?
Select an answer first
25application · medium
A user has 8 GB of RAM and tries to open a large video editing application that requires 12 GB. The system does not crash and the application opens, though performance is slower. Which operating system feature allows this to happen?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to FC0-U71

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by CompTIA. “FC0-U71” is a trademark of its owner, used for identification only.