FC0-U71 Tech Concepts and Terminology Practice Question
Which of the following best describes the function of a CPU cache?
⚠ Common exam trap
FC0-U71 often tests whether candidates confuse cache with RAM or storage, so the trap is picking 'temporary storage' as if cache were just another name for RAM.
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
✓
It provides temporary storage for data the CPU needs quickly.
CPU cache is a small, high-speed memory area that stores frequently used data and instructions so the processor can access them faster than fetching from RAM. It sits between the CPU and main memory to reduce latency. This is why cache size and hierarchy significantly affect performance.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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It connects the CPU to the motherboard.
Why it's wrong here
The CPU connects to the motherboard through its socket and supporting chipset, not through cache. Cache is on-die or on-package SRAM holding recently accessed instructions and data; the described physical interface is the socket and bus, not the cache's storage function.
- ✓
It provides temporary storage for data the CPU needs quickly.
Why this is correct
CPU cache is a small, fast memory tier sitting between the processor and RAM, holding recently used instructions and data so the CPU avoids slower main-memory fetches. This directly satisfies the stem's requirement for temporary storage of data the CPU needs quickly, unlike RAM or disk.
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It stores the operating system permanently.
Why it's wrong here
Permanent operating-system storage is provided by a disk or SSD, which retains data without power. Cache is volatile SRAM holding recently used instructions and data for fast CPU access, so it cannot store the OS persistently; this describes secondary storage instead.
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It performs arithmetic calculations.
Why it's wrong here
Arithmetic calculations are performed by the CPU's arithmetic logic unit, not its cache. The cache is a small, fast SRAM buffer holding recently used instructions and data to reduce main-memory latency, so this option describes the ALU's role rather than temporary high-speed storage.
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JA
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
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.