FC0-U71 Tech Concepts and Terminology Practice Question
A technician is evaluating the CPU specifications of two computers. Which THREE factors directly affect the CPU's performance? (Select THREE.)
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
✓
Number of cores
Clock speed (GHz), number of cores, and cache size directly affect CPU performance. RAM size and PSU wattage do not directly affect CPU speed.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Number of cores
Why this is correct
More cores allow parallel processing.
- ✗
Amount of RAM installed
Why it's wrong here
RAM capacity affects multitasking, not CPU speed.
- ✓
Clock speed (GHz)
Why this is correct
Higher clock speed means more cycles per second.
- ✗
Power supply wattage
Why it's wrong here
PSU wattage affects stability but not CPU performance directly.
- ✓
Cache size (L1/L2/L3)
Why this is correct
Larger cache reduces latency to main memory.
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Same concept, more angles
3 more ways this is tested on FC0-U71
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Which of the following best describes the function of a CPU cache?
medium- A.It connects the CPU to the motherboard.
- ✓ B.It provides temporary storage for data the CPU needs quickly.
- C.It stores the operating system permanently.
- D.It performs arithmetic calculations.
Why B: CPU cache is a small, fast memory that stores frequently accessed data to speed up processing.
Variation 2. A user is selecting a new computer and sees that the CPU has a clock speed of 3.6 GHz and four cores. What does the clock speed of 3.6 GHz indicate?
medium- A.The number of instructions per cycle
- ✓ B.The number of billions of cycles per second
- C.The power consumption of the CPU
- D.The amount of cache memory available
Why B: Clock speed (GHz) indicates how many billions of cycles per second the CPU can execute. It does not directly indicate cache size, core count, or power consumption.
Variation 3. A user notices their computer is running slowly and has many applications open. Which TWO hardware components are most likely to impact the speed at which multiple applications can run simultaneously? (Select TWO).
medium- A.SSD vs HDD
- ✓ B.Amount of RAM
- C.Hard drive capacity
- D.GPU memory
- ✓ E.CPU speed and cores
Why B: RAM provides working memory for running programs; more RAM allows more programs to run smoothly. CPU speed and cores affect processing. HDD/SSD affect loading times but not simultaneous execution as directly. GPU is for graphics.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This FC0-U71 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the FC0-U71 exam.