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H3CSE-WLAN Sample Questions:

1. The difficulties of rail transit data transmission are:

A) High-speed movement to ensure the stability of the transmission channel
B) The high-density coverage of the station has serious interference
C) The train moves to establish a rhyme channel
D) High-speed mobile guaranteed transmission channel bandwidth

2. The above wireless protocols that can work in the 5.8GHz band are (multiple choice)

A) 802.11a
B) 802.11ac
C) 802.11n
D) 802.11ax

3. What frequency band does the WLAN network use?

A) 825~835
B) 1700~1710
C) 2400~2483.5
D) 1900~1915

4. Which of the following frames are 802.11 MAC layer management frames

A) Data
B) Probe Request/Response
C) Association Request/Response
D) Beacon
E) RTS, CTS, ACK
F) Authentication Request/Response

5. The 802.11 protocol essentially provides a link layer access service for wireless clients. If you need to query the IP address of the wireless client, which of the following commands can be used?

A) arp-snooping enable
B) user-isolation enable
C) DHCP-snooping enable
D) port-security enable

Solutions: