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Huawei H12-311_V3.0 Practice Test - Questions Answers, Page 6
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Question 51
1999 Year, IEEE 802.11a The standard formulation is completed. The standard stipulates that the working frequency band of wireless local area network can reach the transmission rate 11Mbps .
5.15 ~5.825GHz , Data transmission
True
False
Question 52
and 802.11a/b/g The standards are different, 802.11n Protocol is dual-frequency working mode (support 2.4GHz and 5GHz Two working frequency bands).
True
False
Question 53
802.11b Support () channels in the United States, among which () channels do not overlap?
14 3
11 3
11 6
14 6
Question 54
original 802.11 What is the maximum rate supported by the protocol Mbps ()?
1
2
5.5
11
Question 55
original 802.11 What is the working frequency band used by the agreement ()?
2.4 GHz
900 MHz
2.0 GHz
5 GHz
Question 56
802.11b Which channels in the protocol do not overlap each other()? (Select 3 Answers)
1
3
6
11
Question 57
Which of the following options is 802.11g The maximum rate supported by the protocol ()?
11Mbps
22Mbps
54Mbps
108Mbps
Question 58
802.11a What kind of technology is used to implement the agreement?
FHSS
DSSS
OFDM
MIMO
Question 59
The following transmission rate can reach 54Mbps What are the wireless LAN standards and above ()? (Select 3 Answers)
802.11a
802.11b
802.11g
802.11n
Question 60
Which of the following wireless frames are control frames ()? (Select 3 Answers)
Beacon
RTS
CTS
PS-Poll
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