The answer is that XMP or EXPO has not been enabled in the BIOS. This is because DDR5 modules ship with a conservative JEDEC standard speed—often 4800 MHz—to ensure system stability across all motherboards, and the higher rated speed of 5600 MHz is an overclocked profile that must be manually activated. On the CompTIA A+ Core 1 220-1201 exam, this scenario tests your understanding that RAM speed is not plug-and-play; a common trap is assuming the rated speed will apply automatically, leading technicians to overlook BIOS configuration. Remember the mnemonic: “Rated speed is a promise, not a default—enable XMP or EXPO to unlock the performance.”
220-1101 RAM Practice Question
This 220-1201 practice question tests your understanding of ram. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A technician is building a new gaming PC and installs two 16 GB DDR5-5600 modules in the correct slots. The system boots and shows 32 GB in the BIOS, but the memory speed is reported as 4800 MHz instead of 5600 MHz. What is the most likely reason for this?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
The RAM modules are defective and cannot run at their rated speed.
Why wrong: Defective modules would likely cause boot failures or errors, not simply run at a lower speed.
B
The motherboard does not support DDR5-5600.
Why wrong: If the motherboard didn't support that speed, it might not boot or would default to a lower speed, but the most common reason is XMP/EXPO not enabled.
C
XMP or EXPO has not been enabled in the BIOS.
Enabling XMP/EXPO is required to run RAM at its rated speed; otherwise, it runs at a conservative default.
D
The RAM is installed in the wrong slots.
Why wrong: Wrong slots would typically prevent dual-channel operation or cause no boot, not just lower speed.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
XMP or EXPO has not been enabled in the BIOS.
DDR5 modules default to a standard JEDEC speed (often 4800 MHz) for stability. To achieve the rated 5600 MHz, the user must enable XMP (Intel) or EXPO (AMD) in the BIOS, which applies the manufacturer's overclocking profile. This tests knowledge of memory speed configuration beyond plug-and-play.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The RAM modules are defective and cannot run at their rated speed.
Why it's wrong here
Defective modules would likely cause boot failures or errors, not simply run at a lower speed.
✗
The motherboard does not support DDR5-5600.
Why it's wrong here
If the motherboard didn't support that speed, it might not boot or would default to a lower speed, but the most common reason is XMP/EXPO not enabled.
✓
XMP or EXPO has not been enabled in the BIOS.
Why this is correct
Enabling XMP/EXPO is required to run RAM at its rated speed; otherwise, it runs at a conservative default.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The RAM is installed in the wrong slots.
Why it's wrong here
Wrong slots would typically prevent dual-channel operation or cause no boot, not just lower speed.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 220-1201 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 220-1201 question in full detail.
Identify which 220-1201 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
RAM — This question tests RAM — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: XMP or EXPO has not been enabled in the BIOS. — DDR5 modules default to a standard JEDEC speed (often 4800 MHz) for stability. To achieve the rated 5600 MHz, the user must enable XMP (Intel) or EXPO (AMD) in the BIOS, which applies the manufacturer's overclocking profile. This tests knowledge of memory speed configuration beyond plug-and-play.
What should I do if I get this 220-1201 question wrong?
Identify which 220-1201 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This 220-1201 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 220-1201 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.