This N10-009 practice question tests your understanding of network implementation. 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 network engineer needs to deploy a new wireless network in a large office with many cubicles. The goal is to provide high throughput and support multiple simultaneous users. Which IEEE standard should be implemented?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
802.11ac
802.11ac (Wi-Fi 5) operates exclusively in the 5 GHz band, uses wider 80 MHz or 160 MHz channels, and supports MU-MIMO (Multi-User Multiple Input Multiple Output) to deliver high throughput and efficient handling of multiple simultaneous users in a dense office environment. This makes it the best choice among the options for a modern, high-capacity wireless deployment.
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.
✓
802.11ac
Why this is correct
802.11ac provides high throughput, supports multiple users via MU-MIMO, and is suitable for high-density office environments.
Related concept
Read the scenario before looking for a memorised answer.
✗
802.11n
Why it's wrong here
802.11n offers good performance but lower maximum data rates and less efficiency in high-density scenarios compared to 802.11ac.
✗
802.11b
Why it's wrong here
802.11b is an outdated standard with a maximum data rate of 11 Mbps, far too slow for modern high-throughput requirements.
✗
802.11g
Why it's wrong here
802.11g operates at 2.4 GHz with a maximum rate of 54 Mbps, which is insufficient for high-performance networks.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often choose 802.11n because it supports MIMO and dual-band operation, overlooking that 802.11ac's MU-MIMO and wider channels provide significantly better performance for multiple simultaneous users in a dense environment.
Trap categories for this question
Scenario analysis trap
802.11n offers good performance but lower maximum data rates and less efficiency in high-density scenarios compared to 802.11ac.
Detailed technical explanation
How to think about this question
802.11ac introduces beamforming as a standard feature (not optional as in 802.11n) and uses Quadrature Amplitude Modulation up to 256-QAM, which packs more bits per symbol for higher data rates. In a real-world open-office layout with many cubicles, 802.11ac's MU-MIMO allows the access point to transmit to multiple clients simultaneously on the same channel, reducing airtime contention and improving overall network efficiency.
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 N10-009 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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this N10-009 question in full detail.
Network Implementation — This question tests Network Implementation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: 802.11ac — 802.11ac (Wi-Fi 5) operates exclusively in the 5 GHz band, uses wider 80 MHz or 160 MHz channels, and supports MU-MIMO (Multi-User Multiple Input Multiple Output) to deliver high throughput and efficient handling of multiple simultaneous users in a dense office environment. This makes it the best choice among the options for a modern, high-capacity wireless deployment.
What should I do if I get this N10-009 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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Question Discussion
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