Free Huawei H12-311-ENU Exam Dumps Questions & Answers

The choice of WLAN coverage antenna, for narrow and long areas, it is recommended to select (), open a short distance area, it is recommended to select ().

• A.omnidirectional antenna; omnidirectional antenna
• B.directional antenna; omnidirectional antenna
• C.omnidirectional antenna; directional antenna
• D.directional antenna; directional antenna

In the term of PoE, what does the AP belong to?

• A.PSU
• B.PSE
• C.PI
• D.PD

The 802.11 protocol that defines the quality of service in WLAN is .

• A.802.11e
• B.802.11n
• C.802.11f
• D.802.11i

Which of the following statements is correct (Select 3 Answers)?

• A.WDS allows wireless APs to bridge (relay) wirelessly, but bridged wireless APs cannot provide coverage at the same time.
• B.Because virtual network lines are formed through wireless networks, WDS is also called wireless network bridging.
• C.The wireless network bridging function usually refers to one-to-one, but the WDS architecture can do one-to-many.
• D.WDS can transmit the data of the wired network through the wireless network as a relay architecture, thereby transmitting the network data to another wireless network environment or another wired network.

What is the value used to record the Network Allocation Vector (NAV) in an 802.11 frame?

• A.address bit
• B.Duration
• C.Frame Control
• D.Sequence control bit