A. The type of roaming terminal

B. Terminal roaming on the path to ensure that the signal coverage overlap range greater than 50%

C. Mobile terminal can be roaming confirmation

D. Terminal roaming on the path to ensure consistent authentication

A. the AP/power dividers/coupler/combiner/antenna joints are generally above N male head, general is mother N type head on both ends of the feeder and both of them are connected.

B. general situation room subsystem main or long (more than 50 meters) use 7/8 line transmission, use 1/2 feeder feeder or close transmission

C. the actual project to calculate the feeder, short feeder can be directly calculated standard number of feeder, long after the feeder need to confirm the wire path to reserve 10%~20% of the length of the feeder

D. 1/2 super soft feeder is very thin, flexible, commonly used to go small cracks in the diagram or transit bend Angle is bigger

A. 224.1.1.16/30

B. 10.1.1.6/30

C. 172.18.1.17/30

D. 10.1.1.7/30

A. DES

B. TKIP

C. WEP

D. CCMP

A. AC Dual Link Hot Standby

B. VRRP Hot Standby

C. AC dual link cold standby

D. AC configuration backup

A. The same length of the feeder, 5GHz attenuation value is greater than 2.4GHz attenuation value.

B. Feeder is divided into four kinds of specifications, cannot be made on-site.

C. The same length of the feeder, 5GHz attenuation value is less than 2.4GHz attenuation value.

D. With the same AP9330DN, all feeders must be kept equal.

A. False

B. True

A. The field strength requirement in key area is that the users' main Internet area can be controlled at -40~-80dBm, the power is too strong easily leading to receiving overload, power is too weak leading to the connection rate decline.

B. The out-releasing field strength of the system cannot be too much, the field strength of the building periphery 10m cannot be greater than -90dBm

C. Edge field level combination of receiver sensitivity and edge bandwidth requirements to determine the general choice -75dBm or more

D. Interference field strength requirement is the same frequency interference in the same area is not greater than -80dBm

A. Under normal circumstances, AP to the far end of the interval between the indoor distribution antenna, control within 50 meters is appropriate, it is recommended not more than 60 meters

B. The number of antennas with a single AP is 4 to 8, and it is recommended that no more than 10 antennas

C. In the typical room scenario, it is recommended that the output power of each antenna is basically the same, the output power is controlled at 12~18dBm, the specific power selection and field strength requirements and wall structure

D. There is interference between the indoor distribution antenna of the same AP, so it can not be arranged according to the needs of intensive

A. Connect the AP's RF port to the antenna interface

B. remove the required signal energy from the main line to the near-end antenna, and allocate more signal energy to the far-end antenna

C. The multi-input signal Synthesis of all the way output, reverse the mixed signal filter separation

D. divide the signal into multiple outputs on average