- A
Update the motherboard BIOS to the latest version.
Why wrong: While a BIOS update can improve compatibility, the most common cause of this issue is an OS limitation, not a BIOS problem.
- B
Check if the motherboard supports 16 GB of RAM.
Why wrong: The technician already confirmed the system sees 8 GB, so the motherboard likely supports the capacity; the issue is that only 8 GB is visible.
- C
Verify that the operating system is 64-bit.
A 32-bit OS cannot address more than 4 GB of RAM, so if the system has 16 GB installed, only 4 GB (or less) will be usable, and the BIOS might report the full amount but Windows won't.
- D
Test each RAM module individually in a known working system.
Why wrong: This is a good troubleshooting step for faulty RAM, but since the system recognizes 8 GB, the modules are likely functional; the issue is an OS limitation.
Quick Answer
The answer is to verify that the operating system is 64-bit. This is the correct next step because a 32-bit version of Windows has a hard memory ceiling of 4 GB (or slightly more with Physical Address Extension), so even after a RAM upgrade to 16 GB, the OS will only recognize and use up to that limit, leaving the remaining capacity inaccessible. On the CompTIA A+ Core 1 220-1201 exam, this scenario tests your understanding of OS architecture limitations versus hardware capacity—a common trap is to immediately suspect faulty hardware or motherboard BIOS settings when the real issue is software-based. Remember, if a system only sees 8 GB after upgrading to 16 GB, the first software check should always be the OS bit version, not the RAM sticks themselves. A handy memory tip: “32-bit can’t hit the 4 GB limit, 64-bit can unlock the whole kit.”
220-1201 RAM Practice Question
This 220-1201 practice question tests your understanding of ram. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 upgrading a client's older PC from 8 GB to 16 GB of DDR3 RAM. After installing the new modules, the system boots but only recognizes 8 GB in the BIOS and Windows. The technician has tried reseating the RAM and swapping slots. What should the technician check next?
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
Verify that the operating system is 64-bit.
32-bit operating systems have a 4 GB memory limit (or slightly more with PAE), so if the client is running a 32-bit version of Windows, it will not recognize more than 4 GB. The technician should verify the OS architecture first.
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.
- ✗
Update the motherboard BIOS to the latest version.
Why it's wrong here
While a BIOS update can improve compatibility, the most common cause of this issue is an OS limitation, not a BIOS problem.
- ✗
Check if the motherboard supports 16 GB of RAM.
Why it's wrong here
The technician already confirmed the system sees 8 GB, so the motherboard likely supports the capacity; the issue is that only 8 GB is visible.
- ✓
Verify that the operating system is 64-bit.
Why this is correct
A 32-bit OS cannot address more than 4 GB of RAM, so if the system has 16 GB installed, only 4 GB (or less) will be usable, and the BIOS might report the full amount but Windows won't.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Test each RAM module individually in a known working system.
Why it's wrong here
This is a good troubleshooting step for faulty RAM, but since the system recognizes 8 GB, the modules are likely functional; the issue is an OS limitation.
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.
What to study next
Got this wrong? Here's your next step.
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 — study guide chapter
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RAM practice questions
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FAQ
Questions learners often ask
What does this 220-1201 question test?
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: Verify that the operating system is 64-bit. — 32-bit operating systems have a 4 GB memory limit (or slightly more with PAE), so if the client is running a 32-bit version of Windows, it will not recognize more than 4 GB. The technician should verify the OS architecture first.
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 18, 2026
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.
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