Huawei H12-311_V3.0 Practice Test - Questions Answers

SIFS

IFS

DIFS

PIFS

Point-to-point method

Point-to-multipoint

Relay bridging method

Multipoint to multipoint

WDS can transmit the data of the wired network through the wireless network as a relay structure, so that the network data can be transmitted to another wireless network Network environment, or another wired network.

The wireless network bridging function usually refers to one-to-one, but the WDS architecture can do one-to-many.

WDS can allow wireless APs to bridge (relay) wirelessly, but the bridged wireless APs cannot provide coverage at the same time.

Because the virtual network line is formed through the wireless network, WDS is also called the wireless network bridging function.

APs belonging to the same region will uniformly adjust the radio frequency channel and power

An AP can belong to two regions at the same time, so that roaming is more optimized

If there is no configuration, all APs belong to region 0 by default

AP region has three types of deployment: dense deployment, discrete deployment, and ordinary deployment.

PSE

PD

PI

PSU

The A.802.af standard was formulated in 2009, and the maximum output power is 30W

802.at supports four power levels and only supports Category 5 lines

802.af, also known as PoE+, can be compatible with 802.a devices

802.at, also known as PoE+, can be compatible with 802.a devices

AP right AC Automatic discovery and AP&AC State machine operation and maintenance

AC right AP Perform management and business configuration delivery

STA Data encapsulation CAPWAP Tunnel forwarding

Defined Mac Layer and physical layer transmission rate

Compared with the three-layer network, the two-layer network is more suitable for large-scale networks such as parks and stadiums.

The advantage of the three-layer network is simple configuration and easy networking

if AC The ability to process data is relatively weak, it is recommended to use bypass networking

In a direct-connected network, AP Business data can not go through AC And directly reach the upstream network

priority

AC of IP address

AC Load condition

AC response AP Time of day