GB0-341-ENU 無料問題集「H3CSE-WLAN」

（A）When planning the coverage of residential households, the AP placement location should be selected reasonably to take into account the wireless signal coverage of each room.

（B）Such areas generally have a radius of less than 60m, and there are not many users connected.

（C）Generally speaking, one AP can meet the requirements of wireless signal coverage and the number of users in such areas. The key is to select the appropriate AP installation location and installation method.

（D）Generally speaking, small meeting rooms, bars, cafes, residential homes, etc. belong to this type of area.

（A）According to the coverage area and the installation location of the combined access point, the power of the two networks needs to be reasonably calculated to determine the installation location of some active devices.

（B）In the acceptance test stage, comparisons should be made before and after the combination from the aspects of the system coverage field strength, call quality, handover, call drop, and the influence of the technical parameters of the source base station.

（C）The quality of the combined access point directly affects the effect of the two-network integration system. Generally speaking, it is mainly selected on the branch of the GSM/CDMA indoor distribution system. The first will not affect the power distribution of the GSM/CDMA network backbone, and the second can reduce the loss of the WLAN network on the feeder transmission and ensure that power is not wasted.

（D）If the power of the system is lacking, it is necessary to replace the original transmission feeder of the system or add a power amplifier.

（A）Wireless user traffic rate limit

（B）Fair queue scheduling mechanism for wireless services

（C）Suppress the impact of weak signal clients on network performance

（D）Layer 2 service traffic isolation for wireless users

（A）WA2220X-AG

（B）WA2220E-AG

（C）WA2210X-G

（D）WA2220X-AGP

（A）Statically bind the wireless client MAC address and VLAN on the wireless controller

（B）After passing the authentication, Radius dynamically issues the client VLAN attributes

（C）Specify different VLAN attributes when adding the same service template (ie SSID) under different Aps

（A）12

（B）24

（C）9

（D）6

（A）port-security disable

（B）service-template disable

（C）radio disable

（D）undo wlan enable

（A）Reduce the noise interference of communication equipment and ensure a good communication effect

（B）Ensure the stability of the electronic components of communication equipment

（C）Enable communication equipment to obtain good shielding effect and avoid external electromagnetic interference

（D）Ensure that the electronic components in the communication equipment are protected from electrostatic high voltage, instantaneous discharge pulses, etc.

（A）By default, the system checks the channel utilization every 9 seconds;

（B）In the hidden command mode, use the command "display ar5d radio-num channelbusy" to query the "air interface channel utilization";

（C）When viewing the value through the command, the system will count the channel utilization value of the last 20 times;

（D）When the AP's working channel is switched, the system will clear the statistical record value.

（A）PSK

（B）WEP

（C）EAP-TLS

（D）PEAP

（A）According to the actual measurement experience, in the indoor distributed system, the wlan signal power of the antenna port is ideally about 10dBm, and the minimum is not less than 5dBm. Generally, the transmit power of the wlan AP junction point is at least not less than 3G/GSM/CDMA signal power.

（B）It is generally not recommended to add a WLAN power amplifier behind the AP

（C）AP junction point must be at the second stage of active equipment (mainly dry amplifier), because active equipment cannot pass wlan signals, and all wireless components of the feed-free system (including power splitters, cables, jumpers, etc.), must be able to support the WLAN frequency band (2.4GHZ~2.4835Ghz), and the attenuation control point is within a certain range.

（D）The AP installation location should ensure that the Ethernet is reachable (less than 100 meters from the access switch), and local power supply should be guaranteed if there is no POE switch.

（E）limited by the number of users; a single AP is connected to the number of antennas should not exceed 15.

（A）basic management 64 APs, the capacity to manage 256 APs

（B）Support redundant power supply, and support AC or DC power supply

（C）Support 4 gigabit interfaces, optical and electrical multiplexing

（A）Conduct a thorough site survey

（B）Use a strong linear light source to estimate the RF signal

（C）Visual distance

（D）Use the path loss calculation formula

（A）AES

（A）False

（B）True

（A）FDD-LTE

（B）802.11ac

（C）BlueTooth

（D）IrDA

（E）802.11n