Latest HCIP-WLAN-CEWA V1.0 H12-321_V1.0-ENU Exam Dumps Questions

1. When the air interface frame is a management frame, how many bits are the ESS and IBSS in the Capability Info field of the management frame that can determine the device is a wireless bridge?

2. According to the detection results reported by the AP, the AC can obtain the neighbor relationship between the AP and the surrounding devices, as well as the neighbor relationship of all radio frequency devices under the entire AC including legal APs, illegal APs, and non-Wi-Fi interfering devices, as shown in the following figure:

In order to prevent the reported data from being too large, only the legal neighbors with signal strength greater than -85dBm and illegal neighbors with signal strength greater than () dBm are reported here.

3. In the N+1 backup network as shown in the figure, AC3 is the backup AC of AC1 and AC2, the number of APs that are online on the main AC1 is 1024, the number of configured APs is 2048, and the number of APs that are online on the main AC2 is 512. Normally, what is the minimum number of APs allowed to access on AC3, and what is the minimum number of APs allowed to be configured on AC3?

4. As shown in the figure, in the Mesh network, which STP spanning tree protocol needs to be enabled?

5. As shown in the figure, a point-to-point link with a length of 3km, and an office building with a height of 9.1m from the ground at the midpoint of the link, if the signal transmission frequency is 5.8GHz, please refer to the following formula according to the actual situation, what is the minimum installation height of the transmit and receive antenna from the ground?

6. Which one of the following four scenarios does not belong to the Mesh network?

7. As shown in the figure, in a large enterprise WLAN network, the company's network administrator recently discovered that the WLAN network traffic was abnormal, and the ping gateway was delayed or a large amount of packets was lost. After excluding other possibilities, it was suspected of being an illegal network attack. Which of the following illegal attacks is most likely?

8. As shown in the figure, a point-to-point communication link with a length of 10km, a tree with an obstacle height of 12.2m in the link, and a distance between the tree and one of the antennas is 4km, calculate the radius of Fresnel zone at 4km, if the signal transmission frequency is 5.8GHz, refer to the following formula according to the actual situation, what is the minimum installation height of the transmit and receive antenna from the ground?

9. In the network shown in the figure below, the data traffic before roaming is forwarded as STA-HAP-HAC-upper network. After layer 2 roaming, what is the direction of data forwarding traffic?

10. According to the process of Mesh connection establishment, which of the following steps are correct?

11. Which of the following is correct about the Earth curvature formula?

12. As shown in the figure, what is the load sharing method of the dual-system hot backup solution?

13. As shown in the figure, in the dual-link cold standby load sharing network, AP1 is a newly online AP, and both the two ACs have access configurations, which AC will AP1 choose for access?

14. As shown in the figure, in public places, such as different companies on adjacent floors in an office building, there are multiple SSIDs. After a company turns on the WIDS illegal device counter function, it will counter the AP of other companies. Which of the following function can effectively solve this problem?

15. As shown in the figure, in order to avoid the transparent transmission of STP packets and cause loops to affect each other, which of the following does not need to enable the STP spanning tree protocol?

16. As shown in the figure is the WIDS attack detection process. After the dynamic blacklist is issued, how will the AP handle different data traffic when it is in the blacklist penalty period?

17. As shown in the figure, there are 4 online STAs (STA1-STA4) under AP1 radio frequency, and 1 online STA (STA5) under AP2 radio frequency. The load balancing start threshold 5 is exceeded, and the maximum number associated users supported by AP1 and AP2 radio frequencies is 10, and the configured load difference threshold is 10%.

When STA6 initiates a request to AP1 for the first time, which of the following statements is correct?

18. In the network shown in the figure, how is the route selected from A to D in the pro-active mode?

19. In the network shown in the figure below, the data traffic before roaming is forwarded as STA-HAP-HC-upper network, and the forwarding method is tunnel forwarding. After three-layer roaming, what is the direction of data forwarding traffic?

20. In the network as shown in the figure below, the data traffic is forwarded as STA-HAP-HAC-upper network before roaming, and the forwarding method is direct forwarding, and the home agent is configured on the AC. After three-layer roaming, what is the direction of data forwarding traffic?

21. As shown in the figure, in a dual-link load balancing hot backup network, AP1 is a newly online AP, and both ACs have access configurations, which AC will AP1 choose for access?

22. In a WLAN network, the AP group is named ap-group and the WIDS template is wids. Now you need to enable the WIDS device counter function to counter APs with counterfeit SSID=huawei. As shown in the figure, which of the following configuration is correct?

23. The following figure shows the mesh configuration process. What should be filled in for 5, 7, and 10 respectively?

24. As shown in the figure, regarding the active/standby mode of the dual-system hot backup solution, which of the following statements is wrong?

25. If a small conference room with a maximum of 90 people is equipped with 3 APs, by configuring CAC on each AP, the number of users cannot exceed 30, and the SSID will be hidden after exceeding, which can indirectly achieve the effect of load balancing among APs.

26. Regarding the precautions for configuring HSB main and backup services, which of the following statements is wrong?

27. Regarding the relationship between the two technologies of 802.1x and RADIU S, which of the following descriptions is correct?

28. In the WLAN outdoor long-distance point-to-point communication, if a stable communication link is to be maintained, what percentage of the first Fresnel area generally cannot be blocked?

29. In the load balancing mode, which of the following regarding the statement about the processing method of hot backup by RADIUS/Portal server is correct?

30. In smart roaming, which of the following methods to identify sticky terminals is correct?

31. APs in monitoring mode in the WLAN network can not only monitor peripheral devices but also forward WLAN data.

32. In the Mesh network, if the MP is connected to the wired network, it is necessary to ensure that the MP and MPP cannot communicate with each other through the wired network. Otherwise, the MPP and MP can communicate with each other through the Mesh link and the wired link. Mesh and wired The link will form a loop between MPP and MP.

33. When the air interface frame is a data frame, the DS value needs to be compared. When the values of To DS and From DS are respectively, the device type is AP?

34. There are three implementations of CAC. Which of the following statements about the implementation of CAC based on channel utilization is wrong?

35. Which of the following descriptions about Mesh routing establishment in pro-active mode is correct?

36. In the WLAN network, the Weak IV attack detection function does not require the support of the dynamic blacklist function.

37. The antenna is different from the signal amplifier. It is a passive device that does not require power supply, but only guides and shapes the wireless signal.

38. Regarding enabling the HSB backup group, if the AP is already online on the main AC, and then the AP information is added offline on the standby AC, the AP status on the standby AC will display fault. In this case, you need to execute the undo hsb enable command in the HSB backup group view of the standby AC to enable the HSB active/standby backup function, and then execute the hsb enable command to enable the HSB active/standby backup function, and then back up the information on the active AC again. The backup information of the active and standby is consistent, and the AP status on the standby AC will be displayed as standby at this time.

39. In a large-scale WLAN network, in order to improve the reliability of the C APWAP link between AP and AC, the DSCP priority of CAPWAP management messages can be configured as high priority.

40. Which of the following commands can be used to check whether the AP channel and transmit power are enabled with the automatic selection function?

41. In the WLAN network environment using the Agile Controller, regarding the 802.1x authentication failure, which of the following phenomena does not meet?

42. In smart roaming, sticky terminals that do not support 802.11k need to scan to obtain information of the surrounding APs to determine whether there are better neighbor APs.

43. In the packet-by-packet power adjustment feature, the basis for the AP to select the transmission power for the terminal each time before sending a data packet is mainly the current signal strength of the terminal. If the terminal signal is good, it will be sent at a lower power, otherwise it will be sent at a higher power.

44. When a large enterprise deploys a WLAN Layer 3 network, it needs to configure the Option 43 field on the Windows 2003 DHCP Server to notify the AP of the AC's IP address.

The AC's IP address is 10.23.100.1. Which of the following needs to be configured in the Option 43 field on the JDHCP Server?

45. If the time is set in the authorization element of the Agile Controller, what is the purpose of configuring the time during authentication and authorization rules?

46. Which of the following commands can be used to create an RF tuning template?

47. Configure the country code

48. Three-layer roaming means that when the user roams from the original AP to the new AP, the service VLAN corresponding to the VAP changes, and the user's data message is switched to the VLAN of the new AP after roaming.

49. In smart roaming, terminals that support 802.11k can actively collect neighbor AP information and report it to the associated AP.

50. Configure the Option 43 field on the Windows 2003 DHCP Server. For example, the string 030C3139322E3136382E32322E31 represents 192.168.22.1. The fixed value of 03, 0C changed to decimal is 12, which means the string length of the IP address, the address 192.168.22.1 has a total of 12 characters, 31 means the ASCII value corresponds to 1, 9 corresponds to 9, and so on, 2E means dot.

So what should be the string corresponding to the IP address 32.15.2.14?