Practice Free H12-323_V2.0-ENU Exam Online Questions
As shown in the figure, it is a WLAN network diagram of an enterprise. STA performs Layer 3 roaming in TAC, and the user data forwarding mode is direct forwarding. Then, by default, which of the following is the traffic forwarding path after STA roaming? 
- A . STA->AP2->WAC->AP1->WAC->sw->Internet
- B . STA->AP2->SW->Internet
- C . STA->AP2->WAC->SW->Internet
- D . STA->AP2->WAC->AP1->Sw->Internet
In the WLAN backhaul scenario, due to the complex environment and high bandwidth requirements of the business, reasonable planning is required when designing and installing APs.
Which of the following deployment suggestions for backhaul scenarios is wrong?
- A . It is necessary to confirm in advance whether there are obvious obstacles on the propagation path between MP and MPP nodes.
- B . Check in advance whether there is interference in the Wi-Fi frequency band near the site
- C . The antenna installation height must be within the radius r of the building’s high Fresnel zone
- D . When selecting a directional antenna, the main lobe coverage of the MPP antenna should cover all MP antennas.
Which of the following descriptions about VRRP hot backup and dual-link hot backup are correct? (Multiple choice)
- A . VRRP hot backup only supports active-standby networking, not load-sharing networking, while dual-link hot backup supports active-standby and load-sharing networking.
- B . During the VRRP hot backup active/standby switchback process, a smaller VRRP preemption delay time (usually less than 60 seconds) should be set to increase the active/standby switchover speed.
- C . In VRRP hot backup, the AP only establishes one CAPWAP tunnel, while in dual-link hot backup, the AP needs to establish two CAPWAP tunnels.
- D . VRRP hot backup supports backing up the IP address allocation information of the DHCP protocol, while dual-link hot backup does not support
During the on-site survey phase of WLAN network planning, engineers need to verify the information obtained during the requirements collection phase on site and also collect information on whether there are other interference sources. Which of the following interference sources need to be additionally marked and recorded on the drawings? (Multiple choice)
- A . Load-bearing columns
- B . Mobile hotspot
- C . Bluetooth
- D . Microwave oven
WAC can switch to cloud mode by switching the registration center. By default, what are the domain name and port number of the registration center preset by TAC?
- A . register.huawei.com: 10021
- B . register, naas.huawei.com: 10020
- C . register, naas.huawei.com: 10021
- D . register.huawei.com ： 10020
When a single spatial stream terminal accesses a multi-spatial stream AP, there is MIHO gain, the dual spatial stream gain is 3 dB, and the triple spatial stream gain is 6 dB.
- A . True
- B . False
When configuring VRRP hot backup, if the HSB backup function is enabled, and WLAN services are configured on the primary and secondary WACs in sequence, it may happen that VAPs have not been created on the secondary WAC, but VAP table information has been generated on the primary WAC.
- A . True
- B . False
In coverage optimization, if the AP uses an external antenna, in addition to adjusting the AP location, you can also adjust the antenna direction to meet the coverage requirements.
Which of the following options are correct regarding antenna direction selection? (Multiple choice)
- A . Avoid trees, houses, etc. from blocking the antenna coverage area.
- B . When installing directional antennas, the distance between the 2.4G antenna and the 5G antenna should be controlled to be more than 0.5 meters
- C . Directional antennas are generally recommended to be mounted on poles
- D . Outdoor omnidirectional antennas need to be installed vertically
The wireless air interface is a complex environment. The WLAN network experience is related to many factors. In addition to adjusting the networking, configuration or working channel of the WLAN network itself, it is also necessary to adjust the parameter configuration of the wireless terminal.
- A . True
- B . False
WLAN common tools WLAN Plarmer and CloudCampus APP are both web-based software and are fully open to the public. Users only need to register a Uniportal account to log in and use them.
- A . True
- B . False