TestOut LabSim A+ Certification Practice Exam

Which wireless standard should be recommended for a transmission range of 150 feet and high speeds?

1. 802.11a

2. 802.11g

3. 802.11n

4. 802.11b

The correct answer is: 802.11n

The recommendation for the 802.11n wireless standard is based on its capabilities that meet the requirements of both transmission range and high speeds. 802.11n utilizes Multiple Input Multiple Output (MIMO) technology, allowing multiple antennas at both the transmitter and receiver to improve communication performance. This technology enhances both the speed and the range of wireless signals, making it ideal for environments where a distance of 150 feet is needed. In practice, 802.11n can support speeds up to 600 Mbps under optimal conditions, significantly exceeding the speeds offered by its predecessor standards. Additionally, 802.11n operates on both the 2.4 GHz and 5 GHz frequency bands. The 2.4 GHz band offers better range, while the 5 GHz band can provide higher speeds at shorter distances. This flexibility allows for a good balance between speed and coverage, aligning perfectly with the specified needs of achieving a robust connection over a distance of 150 feet with high data transmission rates. The other standards, while having their own advantages, do not meet this combination as effectively. For instance, 802.11a and 802.11g have shorter ranges, and 802.11b supports lower speeds. Therefore,