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H3C GB0-342-ENU Exam Syllabus Topics:

H3CSE-WLAN Sample Questions:

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

2. The 802.11 protocol stipulates that a radio chip (radio) can define at most ____ groups of WEP keys at the same time, and the length of the static Key in the WEP key is ____ bits, and the length of the IV vector is ______ bits.

A) 4; 64/128; 48
B) 64/128; 48
C) 40/104; 24
D) 4;40/104;24

3. Moduduyi is far from the required working frequency band, and the closer its passband frequency is to the working frequency of the wireless system, the better, and there is no redundant passband, which can ensure the best effect; secondly, a combiner with filtering function must be used , the interval between the ports should be greater than 80dB, and the maximum

A) correct
B) error

4. When increasing the gain of an omnidirectional antenna, which of the following statements is true about the coverage of the antenna?

A) Reduced coverage in the horizontal direction of the antenna
B) Reduced coverage in the vertical direction of the antenna
C) Increased antenna coverage in the horizontal direction
D) Increased vertical coverage of the antenna

5. The RF interface types given in the following pictures are .

A) N-type female
B) SMA female
C) SMA reverse polarity female
D) SMA male
E) SMA reverse polarity male
F) N-type male

Solutions: