Huawei Certified ICT Associate-Wireless Local Area Network - H12-311 Exam Practice Test

A. False

B. True

A. FCC

B. CCC

C. IETF

D. ETSI

A. 151

B. 155

C. 153

D. 149

A. INTERNET

B. NSFnet

C. ARPANet

D. ALOHNET

A. Added a key distribution mechanism, no longer using a single key

B. Adopt a longer IV

C. Added a message integrity check mechanism

D. Adopting a more complex encryption algorithm

A. 20 MHz

B. 25 MHz

C. 22 MHz

D. 50 MHz

A. phase modulation

B. frequency modulation

C. modulation

D. amplitude modulation

A. 14

B. 13

C. 3

D. 11

A. WiMAX

B. WAPI

C. WiFi

D. WLAN

A. The AP periodically sends information about the STA associated with it to the AC.

B. STA periodically reports the currently associated AP ID.

C. AC periodically queries the number of STAs associated with an AP.

D. STA periodically searches for the AP information and reports the AP ID through the associated AP.

A. Avoid excessive authentication time during roaming, resulting in packet loss or even service interruption.

B. Ensure that the user's IP address is unchanged.

C. Ensure user authorization information remains unchanged.

D. Ensure that the user's network rate is unchanged.

A. Multi-directional coverage using omnidirectional antennas

B. Adjust AP transmit power and adjust antenna feed

C. Reasonable frequency reuse to ensure that the same channel does not appear in the same or adjacent coverage area

D. Natural isolation using obstacles

A. The higher the antenna gain, the stronger the antenna directivity and the weaker the radiation gain directly below the antenna.

B. The length of the feeder must not exceed 2 meters.

C. The feeder interface must match the selected antenna

D. Outdoor antennas should not blindly pursue high gain

A. Microwave interference detection

B. Spoof attack detection

C. Flood attack detection

D. Weak IV attack detection