H12-311_V3.0-ENU Exam Preparation Material | HCIA-WLAN V3.0

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Prepare for the H12-311_V3.0-ENU HCIA-WLAN V3.0 exam with CertQueen's independently developed study resources. Review important concepts, practice scenario-based questions, and use clear explanations to identify areas that require further study.

Question#1

In order to increase the bandwidth of wireless communication, spatial multiplexing technology can be used to use multiple antennas between the sender and receiver to establish multiple spatial streams. In the 802.11ac and 802.11ax protocols, it is stipulated that a radio frequency can use up to () spatial streams.

A. 8

Question#2

What are the wireless LAN standards that support the 5GHz frequency band? (Multiple choice)

A. 802.11a
B. 802.11b
C. 802.11g
D. 802.11n

Question#3

Which of the following configurations about citing AP system templates and MESH templates is correct? (Multiple choice)

A. [AC-wlan-view] ap-group name mesh-mpp [AC-wlan-ap-group-mesh-mpp] wired-port-profile wired-port gigabitethernet 0
B. [AC-wlan-view] ap-group name mesh-mpp [AC-wlan-ap-group-mesh-mpp] regulatory-domain-profile domain 1
C. [AC-wlan-view] ap-group name mesh-mpp [AC-wlan-ap-group-mesh-mpp] mesh-profile mesh-net radio 1
D. [AC-wlan-view] ap-group name mesh-mpp [AC-wlan-ap-group-mesh-mpp] ap-system-profile mesh-sys

Question#4

In the WLAN network environment with the WIDS function enabled, the MAC addresses of the detected AP devices include: 01-01-22-22-33-33
02-01-01-22-33-3302-01-01-22-33-3402-01-22-01-01-22
The configured oui whitelist is 01-01-22; which of the above are illegal APs? (Multiple choice)

A. 01-01-22-22-33-33
B. 02-01-01-22-33-33
C. 02-01-01-22-33-34
D. 02-01-22-01-01-22

Question#5

For the lobe width, which of the following description is correct? (Multiple choice)

A. Within the range of the main lobe, the angle at which the power density drops by half (3dB) relative to the maximum radiation direction
B. The narrower the beam width, the better the directivity, the farther the radiation distance, and the stronger the anti-interference ability
C. Patterns usually have two or more lobes
D. The terminal can receive the signal only within the coverage of the half-power angle

Exam Code: H12-311_V3.0-ENU
Q & A: 478 Q&As         Updated:  Oct 07,2026

 

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