- A
Install the modules in slots 1, 2, 3, and 4 in any order.
Why wrong: While the system will likely work, the order matters for dual-channel operation; but the most important consideration is that all modules are matched.
- B
Ensure all modules are from the same manufacturer and have the same speed and timings.
Using identical modules from a matched set ensures compatibility and prevents issues like timing mismatches that can cause crashes or failure to boot.
- C
Install the modules only in the first two slots to leave room for future upgrades.
Why wrong: The user needs 64 GB now, so all four slots should be used. Leaving slots empty would not meet the requirement.
- D
Set the RAM voltage to the maximum supported by the motherboard.
Why wrong: Setting voltage too high can damage the modules. The correct voltage is specified by the manufacturer, and modern RAM typically uses 1.2V for DDR4.
Quick Answer
The answer is that ensuring all four RAM sticks are from the same manufacturer with identical speed, timings, and voltage is the most important consideration. This is because even if modules share the same rated speed, subtle differences in internal timings or voltage tolerances between different batches or brands can cause system instability, random crashes, or failure to boot when populating all four slots. On the CompTIA A+ Core 1 220-1201 exam, this concept tests your understanding of memory compatibility and the risks of mixing modules, often appearing as a trap where a candidate might focus solely on slot order or total capacity. A common memory tip is to think of RAM sticks like a matched set of tires—mixing brands or wear levels compromises performance and safety, so always verify the model number and revision on the labels.
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 configuring a workstation for a video editing application that requires 64 GB of RAM. The motherboard has four slots and supports up to 128 GB. The technician has four 16 GB DDR4-3200 modules. What is the most important consideration when installing these modules?
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
Ensure all modules are from the same manufacturer and have the same speed and timings.
When installing four identical RAM modules, the key consideration is ensuring they are all from the same matched set or have identical specifications (speed, timings, voltage) to maintain stability and performance. Mixing modules from different manufacturers or batches can cause instability even if they have the same rated speed. Additionally, the technician should install them in the correct slots for dual-channel operation, but the primary concern is compatibility.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Install the modules in slots 1, 2, 3, and 4 in any order.
Why it's wrong here
While the system will likely work, the order matters for dual-channel operation; but the most important consideration is that all modules are matched.
- ✓
Ensure all modules are from the same manufacturer and have the same speed and timings.
Why this is correct
Using identical modules from a matched set ensures compatibility and prevents issues like timing mismatches that can cause crashes or failure to boot.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
Install the modules only in the first two slots to leave room for future upgrades.
Why it's wrong here
The user needs 64 GB now, so all four slots should be used. Leaving slots empty would not meet the requirement.
- ✗
Set the RAM voltage to the maximum supported by the motherboard.
Why it's wrong here
Setting voltage too high can damage the modules. The correct voltage is specified by the manufacturer, and modern RAM typically uses 1.2V for DDR4.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 220-1201 NAT questions on configuration and troubleshooting.
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RAM — study guide chapter
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FAQ
Questions learners often ask
What does this 220-1201 question test?
RAM — This question tests RAM — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Ensure all modules are from the same manufacturer and have the same speed and timings. — When installing four identical RAM modules, the key consideration is ensuring they are all from the same matched set or have identical specifications (speed, timings, voltage) to maintain stability and performance. Mixing modules from different manufacturers or batches can cause instability even if they have the same rated speed. Additionally, the technician should install them in the correct slots for dual-channel operation, but the primary concern is compatibility.
What should I do if I get this 220-1201 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 220-1201 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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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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