The correct answer is that the drive will operate at SATA II speeds. This happens because SATA III is fully backward compatible with SATA II, meaning the interface automatically negotiates down to the highest common speed supported by both the drive and the controller. Since the server’s backplane only supports SATA II’s 3 Gbps limit, the new SATA III drive will run at that slower rate without any damage or errors—it simply cannot achieve its full 6 Gbps potential. On the CompTIA A+ Core 1 220-1201 exam, this scenario tests your understanding of SATA generation compatibility and performance limitations, often appearing as a trap where candidates assume the drive will fail or run at half speed. A common memory tip: think of SATA III as a highway with a 6 Gbps speed limit, but if the road (the backplane) only allows 3 Gbps, you’re stuck in the slow lane—the car still runs fine, just slower.
220-1101 Connectors Practice Question
This 220-1201 practice question tests your understanding of connectors. 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 replacing a failed hard drive in a server. The new drive has a SATA III connector, but the server's backplane only supports SATA II. What will be the result of using this drive?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The drive will operate at SATA II speeds
SATA III is backward compatible with SATA II, so the drive will work but at SATA II speeds (3 Gbps). This tests knowledge of SATA generation compatibility and performance limitations. The drive will not be damaged but will not achieve its maximum speed.
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.
✗
The drive will not be recognized
Why it's wrong here
SATA III drives are backward compatible with SATA II and will be recognized.
✗
The drive will operate at SATA III speeds
Why it's wrong here
The backplane limits the speed to SATA II (3 Gbps), so the drive cannot run at SATA III speeds.
✓
The drive will operate at SATA II speeds
Why this is correct
The drive will negotiate down to SATA II speed due to the backplane's limitation.
Related concept
Static NAT maps one inside address to one outside address.
✗
The drive will be damaged
Why it's wrong here
SATA interfaces are designed for backward compatibility, so no damage will occur.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 220-1201 question in full detail.
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.
Connectors — This question tests Connectors — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: The drive will operate at SATA II speeds — SATA III is backward compatible with SATA II, so the drive will work but at SATA II speeds (3 Gbps). This tests knowledge of SATA generation compatibility and performance limitations. The drive will not be damaged but will not achieve its maximum speed.
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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Question Discussion
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