FC0-U71 Tech Concepts and Terminology Practice Question
A user asks a technician why their computer can run multiple applications at once, such as a web browser, email client, and word processor, without them interfering with each other. Which of the following concepts should the technician use to explain this?
⚠ Common exam trap
Test-takers frequently confuse multitasking with multiprocessing; multitasking is about the OS scheduling multiple processes, while multiprocessing requires multiple physical CPUs or cores.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Multitasking
Multitasking is the operating system feature that allows multiple applications to run concurrently by sharing CPU time. It creates the illusion of simultaneous execution, enabling a user to switch between a browser, email client, and word processor. The other options refer to different concepts such as virtual machines, multiple CPUs, or CPU instruction optimization, which do not directly describe running multiple applications in one OS session.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Multitasking
Why this is correct
Multitasking is the ability of an operating system to run multiple processes seemingly at the same time by rapidly switching CPU time between them. This allows a user to have several applications open and active without them interfering. The scenario describes exactly this behavior, so multitasking is the correct concept. The technician should explain that the OS manages resources and schedules CPU time to create the illusion of simultaneous execution.
- ✗
Virtualization
Why it's wrong here
Virtualization creates a virtual version of a resource, such as a server, desktop, or operating system, often running multiple OS instances on one physical machine. While it can run multiple systems, it is not the primary mechanism that allows a single OS to run multiple applications concurrently. The user's scenario is about running several programs within one OS session, not about creating virtual machines. Therefore, virtualization does not directly explain the described behavior.
- ✗
Pipelining
Why it's wrong here
Pipelining is a CPU technique where multiple instructions are overlapped in execution to improve throughput. It operates at the instruction level within a single process or thread, not at the application level. It does not explain how a user can run several distinct applications at once. The scenario is about running multiple programs, which is a function of the operating system's scheduling, not CPU instruction pipelining.
- ✗
Multiprocessing
Why it's wrong here
Multiprocessing refers to a system with more than one physical CPU or core, allowing true simultaneous execution of multiple processes. While it enhances multitasking, it is not the fundamental concept that enables a single CPU to run multiple applications. The scenario does not specify multiple CPUs, and even a single-core system can multitask through time-slicing. Thus, multiprocessing is a related but not the best explanation for the user's observation.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
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