多项选择题
A. near-end crosstalk(NEXT) B. middle open-end crosstalk(MOEXT) C. power sum near-end crosstalk(PSNEXT) D. jitterry crosstalk(JEXT) E. far end crosstalk(FEXT)
Assuming you build networks to exact specifications, wh...
单项选择题Assuming you build networks to exact specifications, what is the recommended maximum length a 10BaseT cable can be before it has to be segmented or repeated?（）
A.100 meters B.100 feet C.100 yards D.200 meters
What is the maximum data rate specified by the IEEE 802...
单项选择题What is the maximum data rate specified by the IEEE 802.11B standard for wireless LANS?（）
A. 10 Mbps B. 11 Mbps C. 54 Mbps D. 100 Mbps E. none of the above
Which IEEE standard is used to define Wi-Fi?（）A. IEEE 8...
单项选择题Which IEEE standard is used to define Wi-Fi?（）
A. IEEE 802.3 B. IEEE 802.5 C. IEEE 802.11h D. IEEE 802.11c E. IEEE 802.11
