H12-311 無料問題集「Huawei Certified ICT Associate-Wireless Local Area Network」

（A）False

（B）True

（A）AC-VO

（B）AC-VI

（C）AC-BE

（D）AC-BK

（A）QPSK

（B）OFDM

（C）DSSS

（D）FHSS

（A）No pass, pass

（B）After passing through not

（C）After passing through

（D）No pass, no pass

（A）no-auth

（B）sn-auth

（C）mac-sn-auth

（D）mac-auth

（A）APs belonging to the same region will uniformly adjust the RF channel and power.

（B）If you do not configure, all APs belong to region 0 by default.

（C）AP region is laid in three types: dense placement, discrete deployment, and normal deployment.

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

（A）SSID technology can divide a wireless local area network into several sub-networks that require different authentication. Each sub-network needs independent authentication. Only authenticated users can enter the corresponding sub-network to prevent unauthorized access. The user enters the network.

（B）The SSID is the same in an ESS, but the BSSID corresponding to each AP in the ESS is different. If an AP can support multiple SSIDs at the same time, the AP will assign different BSSIDs to correspond to these SSIDs.

（C）Users can implement roaming under different SSIDs.

（D）The BSSID is actually the MAC address of the AP, which is used to identify the BSS managed by the AP, and maps the BSSID and SSID in the same AP.

（A）The switching threshold of WLAN load balancing has two configurations based on the number of users and the number of sessions.

（B）Wireless controller can achieve high availability through stacking

（C）Huawei's AP radio tuning function is divided into global tuning and local tuning. The local tuning is done by the AP independently.

（D）After the dual-link backup configuration, if the user adopts the tunnel forwarding mode, the active service will not be interrupted even if the active AC fails.

（A）Power splitter and coupler are unequal power distribution

（B）Power splitter is equal power distribution, coupler is unequal power distribution

（C）Power splitter and coupler are equal power allocation

（D）Power splitter is unequal power distribution, coupler is equal power distribution

（A）authentication policy wpa2 Wpa2 authentication-method share-key Wpa2 key wpa2-40 hex 0 1234567890 Wpa2 default-key 0

（B）authentication policy wpa Wpa authentication-method share-key Wpa key wpa-40 hex 0 1234567890 Wpa default-key 0

（C）security-policy wep Wep authentication-method open Wep key wep-40 hex 0 1234567890 Wep default-key 0

（D）security-policy wep Policy wep share-key Wep key wep-40 hex 0 1234567890 Wep default-key 0

（A）No need to overlap

（B）100%

（C）10%-15%

（D）50%

（A）10

（B）7

（C）9

（D）8

（A）5

（B）7

（C）8

（D）6

（A）False

（B）True

（A）WPA2 PSK authentication requires the user to enter a username and password to connect

（B）WAPI is China's wireless LAN national standard system

（C）When the user obtains the IP address successfully, the user triggers the HTTP packet of the user. At this time, the user is forced to redirect to the portal server to perform the authentication process.

（D）WPA2 uses 802.1X authentication

（A）Responsible for establishing the CAPWAP tunnel between the AC and the AP.

（B）Mainly responsible for transmitting data when WLAN users access the Internet

（C）PVID VLAN under WLAN ESS interface

（D）Service VLAN under the service set template

（A）Different throughput capabilities

（B）Different data rates supported

（C）Different protocols use different technologies

（D）Different working bands

（A）Classification by use: short wave antenna, ultrashort wave antenna, microwave antenna, etc.

（B）Classification by shape: wire antenna, planar antenna, etc.

（C）Classification by direction: omnidirectional antenna, directional antenna, etc.

（D）Classification by working frequency band: communication antenna, TV antenna, radar antenna, etc.

（A）False

（B）True

（A）omnidirectional antenna; omnidirectional antenna

（B）omnidirectional antenna; directional antenna

（C）directional antenna; directional antenna

（D）directional antenna; omnidirectional antenna