COMPTIA A+ Practice Exam

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Ace your COMPTIA A+ certification with our practice exam. Engage with a variety of questions including multiple choice and performance-based, complete with hints and detailed explanations. Prepare effectively and boost your confidence for the big day!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

At what frequency does 802.11g operate?

2.4GHz
5GHz
Both 2.4GHz and 5GHz
Either 2.4 or 5GHz

The correct answer is: 2.4GHz

802.11g operates at a frequency of 2.4GHz. This frequency is within the unlicensed radio spectrum, meaning that it does not require a license to operate. Additionally, 2.4GHz is the most commonly used frequency for Wi-Fi networks, making it a reliable and widely available option. The other options, while also within the unlicensed spectrum, are not the designated frequency for 802.11g and may cause compatibility issues. Both 2.4GHz and 5GHz (option C) is incorrect as 802.11g only operates at 2.4GHz. Either 2.4 or 5GHz (option D) is also incorrect as it implies that the frequency can be either 2.4GHz or 5GHz, when in fact it can only operate at 2.4GHz. Option B, 5GHz, is incorrect as it is the designated frequency for 802.11a and 802.11n, not 802.11g. Therefore, option A, 2.4GHz, is the correct answer.