The answer is the CPU socket type. This is the most critical compatibility factor because the physical socket determines whether a processor can even be installed on the motherboard, regardless of core count or thread improvements. Even if a new CPU offers better multi-threaded performance for a virtualization host, it must match the existing socket, chipset, and BIOS support to function. On the CompTIA A+ Core 1 220-1201 exam, this concept tests your understanding that socket compatibility is the first check before any upgrade, often appearing in scenario-based questions where a technician overlooks the socket and chooses a CPU with the wrong pin layout. A common trap is focusing solely on core count or clock speed while ignoring the physical interface. Remember the memory tip: “Socket first, specs second” — if the pins don’t fit, the upgrade won’t work.
220-1201 CPU Practice Question
This 220-1201 practice question tests your understanding of cpu. 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 server CPU to improve multi-threaded performance for a virtualization host. The current CPU has 8 cores and 16 threads. Which of the following specifications is most important to consider for compatibility?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
CPU socket type
CPU upgrades require careful consideration of socket type, chipset support, and BIOS compatibility. The socket is the most critical physical compatibility factor.
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.
✗
CPU clock speed
Why it's wrong here
Clock speed affects performance but is irrelevant if the CPU doesn't physically fit the socket.
✗
CPU core count
Why it's wrong here
Core count is a performance metric, not a compatibility factor for installation.
✓
CPU socket type
Why this is correct
The socket type must match the motherboard; otherwise, the CPU cannot be installed at all.
Related concept
Static NAT maps one inside address to one outside address.
✗
CPU TDP
Why it's wrong here
TDP matters for cooling and power, but socket compatibility is the primary concern.
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.
CPU — This question tests CPU — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: CPU socket type — CPU upgrades require careful consideration of socket type, chipset support, and BIOS compatibility. The socket is the most critical physical compatibility factor.
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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