- A
802.11ax uses MU‑MIMO only for downlink transmissions.
Why wrong: 802.11ax uses OFDMA for efficient channel access and also supports MU-MIMO, but not exclusively.
- B
802.11ac operates only in the 5 GHz frequency band.
802.11ac is a 5 GHz-only standard, providing wider channels and higher data rates compared to 2.4 GHz.
- C
Overlapping channels in the 2.4 GHz band are used to maximize non-overlapping channel availability.
Why wrong: In the 2.4 GHz band, only channels 1, 6, and 11 are non-overlapping; overlapping channels cause interference.
- D
WPA3 uses Simultaneous Authentication of Equals (SAE) to provide stronger password-based authentication.
SAE in WPA3 replaces the PSK handshake of WPA2, offering protection against offline dictionary attacks.
- E
A wireless LAN controller (WLC) is typically managed via its console port for day-to-day operations.
Why wrong: WLC management is usually performed through a web interface, SSH, or SNMP, not the console port (used for initial setup).
Wireless LAN Fundamentals for CCNA: 802.11 Standards and Security
This 200-301 practice question tests your understanding of network infrastructure and connectivity. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 accurately describe wireless LAN fundamentals for CCNA 200-301 v2.0? (Choose two.)
Quick Answer
The correct choices are that 802.11ac operates exclusively in the 5 GHz band and WPA3 uses Simultaneous Authentication of Equals (SAE) for stronger password-based authentication. 802.11ac, known as Wi-Fi 5, is a pure 5 GHz standard that achieves higher throughput by using wider 80 or 160 MHz channels and avoiding the crowded 2.4 GHz spectrum, which is a key wireless LAN fundamental for CCNA. WPA3’s SAE replaces the vulnerable four-way handshake of WPA2 with a secure password-based exchange resistant to offline dictionary attacks, a critical security upgrade tested on the CCNA 200-301 v2 exam. A common trap is confusing 802.11ax (Wi-Fi 6) with 802.11ac—remember that Wi-Fi 6 supports MU-MIMO in both directions, while Wi-Fi 5 is downlink-only and strictly 5 GHz. For a quick memory tip: “AC is 5 only, AX does both bands and both MU-MIMO directions.”
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
802.11ac operates only in the 5 GHz frequency band.
Option B is correct: 802.11ac (Wi‑Fi 5) operates exclusively in the 5 GHz band, leveraging wider channels (up to 160 MHz) and reduced interference. Option D is correct: WPA3 introduces Simultaneous Authentication of Equals (SAE) for robust password‑based authentication, replacing the weaker WPA2 four‑way handshake. Option A is wrong: 802.11ax (Wi‑Fi 6) supports MU‑MIMO for both uplink and downlink, not only downlink. Option C is wrong: Overlapping channels in the 2.4 GHz band reduce throughput and are not used to maximize availability; instead, non‑overlapping channels (1, 6, 11) are recommended. Option E is wrong: A WLC is typically managed via a web GUI, SSH, or SNMP, not via its console port for routine operations; console access is used for initial setup or troubleshooting.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
802.11ax uses MU‑MIMO only for downlink transmissions.
Why it's wrong here
802.11ax uses OFDMA for efficient channel access and also supports MU-MIMO, but not exclusively.
- ✓
802.11ac operates only in the 5 GHz frequency band.
Why this is correct
802.11ac is a 5 GHz-only standard, providing wider channels and higher data rates compared to 2.4 GHz.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Overlapping channels in the 2.4 GHz band are used to maximize non-overlapping channel availability.
Why it's wrong here
In the 2.4 GHz band, only channels 1, 6, and 11 are non-overlapping; overlapping channels cause interference.
- ✓
WPA3 uses Simultaneous Authentication of Equals (SAE) to provide stronger password-based authentication.
- ✗
A wireless LAN controller (WLC) is typically managed via its console port for day-to-day operations.
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.
✓802.11ac operates only in the 5 GHz frequency band.Correct answer▾
Why this is correct
802.11ac is a 5 GHz-only standard, providing wider channels and higher data rates compared to 2.4 GHz.
✗802.11ax uses MU‑MIMO only for downlink transmissions.Wrong answer — click to see why▾
Why this is wrong here
MU-MIMO is a feature of 802.11ac and 802.11ax, but 802.11ax primarily relies on OFDMA for multi-user support.
✗Overlapping channels in the 2.4 GHz band are used to maximize non-overlapping channel availability.Wrong answer — click to see why▾
Why this is wrong here
Overlapping channels reduce performance due to co-channel interference, not maximize non-overlapping channels.
✗A wireless LAN controller (WLC) is typically managed via its console port for day-to-day operations.Wrong answer — click to see why▾
Why this is wrong here
Console port is used for initial configuration or troubleshooting, not for routine management.
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: answer the scenario, not the keyword
Cisco often tests the misconception that 802.11ac operates in both 2.4 GHz and 5 GHz bands, or that MU-MIMO in 802.11ax is exclusive to uplink, when in fact 802.11ax supports MU-MIMO bidirectionally and 802.11ac is strictly 5 GHz.
Detailed technical explanation
How to think about this question
802.11ac achieves higher throughput by bonding multiple 20 MHz channels into wider channels (40, 80, or 160 MHz) and using MU-MIMO (downlink only) to serve multiple clients simultaneously. In the 2.4 GHz band, only three non-overlapping channels (1, 6, 11) are available due to the 22 MHz channel width and 5 MHz spacing, making overlapping channels a common source of performance degradation in dense deployments like apartment complexes or conference halls.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 200-301 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this 200-301 question test?
Network Infrastructure and Connectivity — This question tests Network Infrastructure and Connectivity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: 802.11ac operates only in the 5 GHz frequency band. — Option B is correct: 802.11ac (Wi‑Fi 5) operates exclusively in the 5 GHz band, leveraging wider channels (up to 160 MHz) and reduced interference. Option D is correct: WPA3 introduces Simultaneous Authentication of Equals (SAE) for robust password‑based authentication, replacing the weaker WPA2 four‑way handshake. Option A is wrong: 802.11ax (Wi‑Fi 6) supports MU‑MIMO for both uplink and downlink, not only downlink. Option C is wrong: Overlapping channels in the 2.4 GHz band reduce throughput and are not used to maximize availability; instead, non‑overlapping channels (1, 6, 11) are recommended. Option E is wrong: A WLC is typically managed via a web GUI, SSH, or SNMP, not via its console port for routine operations; console access is used for initial setup or troubleshooting.
What should I do if I get this 200-301 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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