H12-351_V1.0 Exam Dumps - Huawei HCIE-WLAN Questions and Answers

802.11r fast roaming

Smart roaming

Fast roaming using PMK caching.

Agile distributed SFN roaming

The HSB group is bound to NAC, DHCP, and WLAN services to improve service reliability.

The group status is Active. Therefore, the HSB status of the WAC is stable.

Dual-link HSB is enabled on the WAC.

VRRP HSB is enabled on the WAC.

Smart roaming can be enabled on the WAC to help ST As roam and associate with APs with better signals.

Generally, a STA roams when it detects that the signal strength is less than -75 dBm.

STAs can roam between WACs in dual-link HSB mode.

In most cases, the signal strength of a STA should range from -45 dBm to -65 dBm.

The receiver verifies the identity of the sender.

The receiver rejects old or duplicate packets in order to prevent attacks initiated by malicious users who resend sniffed packets,

The sender verifies the identity of the receiver.

Data integrity is verified.

Hotspot tag

AeroScout tag

Location tag

Ekahau tag

In a classroom scenario. If the walls are made of reinforced concrete, the signal attenuation Is high. In this case, you are advised to test the attenuation during the site survey. Additionally, pay attention to the locations of ELV rooms in the teaching building.

In an office scenario, the load-bearing columns and partitions affect the signal coverage. If an integrated ceiling is used, deploy APs near maintenance entrances. If a metal ceiling is used, mount APs on the ceiling or wall.

In a ward-round scenario, high requirements are posed on the coverage field strength, roaming effect, and bandwidth. Determine the interference of medical equipment and the areas where Wi-Fi signals are not allowed.

In a stadium scenario, the onsite environment is complex and cabling is difficult. Therefore, confirm with the property management company about ELV rooms and cabling. If the transmission distance is too long, consider deploying more switches. During the survey, focus on the interference between APs and AP mounting modes.

Multicast address

Unicast address

Broadcast address

Anycast address