1. Calculation formula of signal field strength (without considering factors such as interference and line loss) is:

2. A company wants to deploy outdoor WLAN, the AP equipment selected is Huawei outdoor AP6510DN. In order to save costs, engineers plan to directly supply power to the AP through AC6605.
At this time, AC6605 just installed a 500W of PoE power modules, AC6605 work requires 120W of power, then how many AP6510DN can the AC6605 power?

3. In which of the following situations, the DHCP relay function must be enabled?

4. Which of the following are not the rail transit redundant service design?

5. During the WLAN security planning, in order to support the self-registration of visitors, it is recommended that the authentication method which is set for visitors is:

6. In the WDS+ dual link scenario, the number of heartbeat packet detections should be set as:

7. In a school dormitory scenario, WLAN needs to be deployed, and the customer proposes to maximize the bandwidth. Which of the following methods can best meet the customer's needs?

8. Which of the following descriptions about using the WLAN Tester 2.0 tool to conduct site surveys is correct?

9. When deploying a WLAN network, a reasonable CCA threshold can be configured to reduce signal interference and increase the degree of channel reuse. If AP deployment is dense and you want to reduce the actual coverage area to ignore weak remote signals, and increase the CCA threshold.

10. In order to prevent network attacks based on source address spoofing, the binding table matching check is performed on the received IP packets to prevent illegal packets from passing through the AP and improve the security of the network. Which of the following functions can be enabled?

11. Which of the following options is the most important reason for small and medium enterprises to use WLAN?

12. When planning a LAN network and calculating the number of APs, only the bandwidth load needs to be considered.

13. In the VRRP hot backup scenario, which of the following description of the WAC 's CAPWAP source address is correct?

14. When planning indoor WLAN, it is recommended that the deployment height of omnidirectional antennas does not exceed 6m.

15. Which of the following wireless applications has higher requirements to bandwidth and real-time?

16. In a project, the two sites are 3km apart, but there is an 18m high building in the middle of the two points, and there are no higher obstacles in other locations. When using 5G backhaul, how many meters should the installation height of the two sites be at least?

17. In WDS and Mesh networks, in order to avoid interference from other signals on the backbone link, the 2.4GHz frequency band is generally used as the frequency band for network backhaul.

18. In the WLAN outdoor coverage scenario, in order to ensure the balance of the uplink and downlink, which of the following is the most effective way?

19. What AP models can be used for indoor WLAN deployment?

20. A 5dB coupler has a coupling degree of 5dB and an insertion loss of 2dB. If the input signal power is 17dBm, the output power of the coupling port is:

21. Which of the following is not a method to increase the coverage signal strength range?

22. What is the core of the wireless medical positioning system?

23. Pre-sales network planning is a kind of business development, not a big project generally does not need to be undertaken.

24. The 14 channels in 2.4 GHz only support the 802.11b protocol, which is only available in Japan.

25. The life cycle of Huawei's enterprise services has 5 different stages: Plan, Design, Implement, Operate, and Improve, referred to as PDTOI.