单项选择题
A. The transmitted signal from the AP arrives at the client at slightly different times resulting in phase shifting.
B. If signal 2 is close to 360 degrees out of phase with signal 1， the result is essentially zerosignal or a dead spot in the WLAN.
C. Multipath interference is less of an issue when using a DSSS technology because multipath is frequency selective.
D. If signal 1 is in phase with signal 2， the result is essentially zerosignal or a dead spot in the WLAN.
E. Multipath interference is solved by using dual antennas.
单项选择题 You work as a network technician at Company. Please study the exhibit carefully. In this Company wireless network， the LAP （lightweight access point） attempts to register to a WLC （Wireless LAN Controller）. What kind of message is transmitted？（）
单项选择题 LDAP is being used throughout the Company wireless network. Which statement about the Lightweight Access Point Protocol （LWAPP） protocol is true？（）
单项选择题 Refer to the exhibit. Both host stations are part of the same subnet but are in different VLANs. On the basis of the information presented in the exhibit， which statement is true about an attempt to ping from host to host？ （）
