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Question 1,240 of 1,052
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CCNA Practice Question: Which TWO statements correctly describe…
This 200-301 practice question tests your understanding of which two statements correctly describe…. 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.
Which TWO statements correctly describe differences between 802.11ac (Wi-Fi 5) and 802.11ax (Wi-Fi 6) wireless standards?
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
✓
802.11ax supports both 2.4 GHz and 5 GHz bands, while 802.11ac only supports 5 GHz.
802.11ax introduces OFDMA (Orthogonal Frequency Division Multiple Access) to improve efficiency in dense environments, while 802.11ac uses only OFDM. Additionally, 802.11ax supports both 2.4 GHz and 5 GHz bands, whereas 802.11ac operates exclusively in the 5 GHz band. The other options are incorrect: both standards support 160 MHz channel bonding (though 802.11ax is more efficient), 802.11ac uses OFDM (not OFDMA), and 802.11ax can use up to 8 spatial streams (not 4).
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.
- ✗
802.11ac uses OFDMA, while 802.11ax uses OFDM for multiple access.
Why it's wrong here
This is reversed. 802.11ac uses OFDM, and 802.11ax introduces OFDMA for better spectral efficiency.
- ✓
802.11ax supports both 2.4 GHz and 5 GHz bands, while 802.11ac only supports 5 GHz.
Why this is correct
802.11ax (Wi-Fi 6) operates in both 2.4 GHz and 5 GHz (and optionally 6 GHz in Wi-Fi 6E), whereas 802.11ac is limited to the 5 GHz band.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
Both 802.11ac and 802.11ax support 160 MHz channel bonding.
Why it's wrong here
While 802.11ac does support 160 MHz channel bonding, it is less efficient and rarely implemented; 802.11ax also supports it but with better efficiency. However, the statement is factually correct, so it is not the intended answer. The question asks for differences, and this is a similarity.
- ✓
802.11ax introduces OFDMA to improve efficiency in high-density environments.
Why this is correct
OFDMA is a key feature of 802.11ax that allows multiple users to share the same channel simultaneously, improving efficiency in dense deployments.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
802.11ac supports up to 4 spatial streams, while 802.11ax supports up to 8 spatial streams.
Why it's wrong here
802.11ac supports up to 8 spatial streams (though 4 is more common), and 802.11ax also supports up to 8 spatial streams. This is a similarity, not a difference.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The 200-301 exam frequently reuses these exact scenarios with slightly different constraints.
✓802.11ax supports both 2.4 GHz and 5 GHz bands, while 802.11ac only supports 5 GHz.Correct answer▾
Why this is correct
802.11ax (Wi-Fi 6) operates in both 2.4 GHz and 5 GHz (and optionally 6 GHz in Wi-Fi 6E), whereas 802.11ac is limited to the 5 GHz band.
✗802.11ac uses OFDMA, while 802.11ax uses OFDM for multiple access.Wrong answer — click to see why▾
Why this is wrong here
802.11ac relies on OFDM, not OFDMA; OFDMA is a key feature of 802.11ax.
✗Both 802.11ac and 802.11ax support 160 MHz channel bonding.Wrong answer — click to see why▾
Why this is wrong here
This is a similarity, not a difference. The question asks for differences.
✗802.11ac supports up to 4 spatial streams, while 802.11ax supports up to 8 spatial streams.Wrong answer — click to see why▾
Why this is wrong here
Both standards support up to 8 spatial streams, so this is not a distinguishing difference.
Analysis generated from the official 200-301blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
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.
Trap categories for this question
Similar concept trap
While 802.11ac does support 160 MHz channel bonding, it is less efficient and rarely implemented; 802.11ax also supports it but with better efficiency. However, the statement is factually correct, so it is not the intended answer. The question asks for differences, and this is a similarity.
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 200-301 NAT questions on configuration and troubleshooting.
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FAQ
Questions learners often ask
What does this 200-301 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: 802.11ax supports both 2.4 GHz and 5 GHz bands, while 802.11ac only supports 5 GHz. — 802.11ax introduces OFDMA (Orthogonal Frequency Division Multiple Access) to improve efficiency in dense environments, while 802.11ac uses only OFDM. Additionally, 802.11ax supports both 2.4 GHz and 5 GHz bands, whereas 802.11ac operates exclusively in the 5 GHz band. The other options are incorrect: both standards support 160 MHz channel bonding (though 802.11ax is more efficient), 802.11ac uses OFDM (not OFDMA), and 802.11ax can use up to 8 spatial streams (not 4).
What should I do if I get this 200-301 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 200-301 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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