Chapter 2
1. C. The ITU-R allocated the ISM bands for global use.
2. B. The U-NII-1 band is the first of four 5-GHz bands set aside for wireless LAN use.
3. D. The EIRP is always limited to +36 dBm in the 2.4-GHz band, except in the case of point-to-point links.
4. D.
5. C. Only channels 1, 6, and 11 are nonoverlapping. The 2.4-GHz channels are spaced 5 MHz apart, whereas the DSSS channel width is 22 MHz.
6. D. The first U-NII-1 channel is labeled channel 36.
7. C, D, F. IEEE 802.11g and 802.11b deal with the 2.4-GHz band. IEEE 802.11a is strictly for 5 GHz, and 802.11n includes both 2.4 and 5 GHz. The IEEE 802.11-2012 standard has all of these amendments rolled up into one document.
8. C, D. Both 802.11g and 802.11a define OFDM use, even though ...
Get CCNA Wireless 640-722 Official Cert Guide now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
