220-1101 · Question #53
220-1101 Question #53: Real Exam Question with Answer & Explanation
The correct answer is D: 802.11n. {"question_number": 3, "question": "Which of the following standards supports MIMO technology?", "correct_answer": "D. 802.11n", "explanation": "MIMO (Multiple Input, Multiple Output) was first introduced in the 802.11n (Wi-Fi 4) standard, ratified in 2009. MIMO uses multiple ant
Question
Which of the following standards supports MIMO technology?
Options
- A802.11a
- B802.11b
- C802.11g
- D802.11n
Explanation
{"question_number": 3, "question": "Which of the following standards supports MIMO technology?", "correct_answer": "D. 802.11n", "explanation": "MIMO (Multiple Input, Multiple Output) was first introduced in the 802.11n (Wi-Fi 4) standard, ratified in 2009. MIMO uses multiple antennas at both the transmitter and receiver to improve throughput and range. 802.11a (1999) and 802.11b (1999) predate MIMO entirely and use single-stream SISO (Single Input, Single Output). 802.11g (2003) also does not support MIMO. 802.11n and all subsequent standards (802.11ac/Wi-Fi 5 and 802.11ax/Wi-Fi 6) utilize MIMO or its extended form, MU-MIMO.", "generated_by": "claude-sonnet", "llm_judge_score": 4}
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