- A
Install all four modules in the same channel (e.g., slots 1, 2, 3, 4) to maximize density.
Why wrong: Installing all modules in one channel would force the system to run in single-channel mode, drastically reducing memory bandwidth.
- B
Install two modules in one channel and two in another, leaving the other two channels empty.
Why wrong: This would give dual-channel operation, not quad-channel, wasting the potential of the motherboard.
- C
Install one module in each of the four channels (e.g., slots 1, 3, 5, 7) to enable quad-channel mode.
Using one module per channel populates all four memory channels, allowing the CPU to access memory in quad-channel mode, which provides the highest bandwidth.
- D
Install all four modules in the same slot using a special adapter.
Why wrong: No such adapter exists for standard desktop memory; this is not a valid configuration.
Quick Answer
The correct configuration is to install one module in each of the four channels, such as slots 1, 3, 5, and 7, to enable quad-channel mode. This yields the best performance because quad-channel memory architecture requires all four channels to be populated with identical modules, allowing the memory controller to access all channels simultaneously and quadruple the data transfer rate compared to single-channel operation. On the CompTIA A+ Core 1 220-1201 exam, this concept tests your understanding of how channel count directly impacts bandwidth for high-performance workstations, with a common trap being that installing two modules in dual-channel mode or mismatching sizes will reduce the channel count and cripple throughput. Remember the memory tip: “Quad needs four—one per channel for full throttle.”
220-1201 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 tasked with building a high-performance workstation for a data scientist who uses large datasets. The workstation has a motherboard that supports quad-channel memory. The technician has four 16 GB DDR4-3200 modules. Which configuration will yield the best memory performance?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"best"Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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
Install one module in each of the four channels (e.g., slots 1, 3, 5, 7) to enable quad-channel mode.
Quad-channel memory architecture requires that all four memory channels be populated with identical modules to achieve maximum bandwidth. Installing one module per channel (e.g., in slots 1, 3, 5, 7 or the designated quad-channel slots) allows the memory controller to access all four channels simultaneously, quadrupling the data transfer rate compared to single-channel. Using fewer modules or mismatched sizes would reduce the channel count or cause the system to run in a lower-channel mode.
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 all four modules in the same channel (e.g., slots 1, 2, 3, 4) to maximize density.
Why it's wrong here
Installing all modules in one channel would force the system to run in single-channel mode, drastically reducing memory bandwidth.
- ✗
Install two modules in one channel and two in another, leaving the other two channels empty.
Why it's wrong here
This would give dual-channel operation, not quad-channel, wasting the potential of the motherboard.
- ✓
Install one module in each of the four channels (e.g., slots 1, 3, 5, 7) to enable quad-channel mode.
Why this is correct
Using one module per channel populates all four memory channels, allowing the CPU to access memory in quad-channel mode, which provides the highest bandwidth.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
Install all four modules in the same slot using a special adapter.
Why it's wrong here
No such adapter exists for standard desktop memory; this is not a valid configuration.
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: Install one module in each of the four channels (e.g., slots 1, 3, 5, 7) to enable quad-channel mode. — Quad-channel memory architecture requires that all four memory channels be populated with identical modules to achieve maximum bandwidth. Installing one module per channel (e.g., in slots 1, 3, 5, 7 or the designated quad-channel slots) allows the memory controller to access all four channels simultaneously, quadrupling the data transfer rate compared to single-channel. Using fewer modules or mismatched sizes would reduce the channel count or cause the system to run in a lower-channel mode.
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.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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
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