Compared with 802.11a/b/g, the technical advantages of 802.11n include which of the following aspects ()?
support 5GHz What are the wireless LAN standards for frequency
bands ()? (Select 2 Answers)
Huawei eSight Network management wizard-style configuration WLAN Business needs to be added in the network management first AC equipment.
Configure the security policy of the wireless network as WEP , You need to AC6605 The security template is configured as follows ().
802.11 The parameter used in the frame to check the integrity of the received frame is ()
802.11a exist 20M How many sub-carriers can be used to transmit data in the mode ()?
By a wireless AP And what is the network of associated wireless clients called ()?
For the lobe width, which of the following descriptions is correct is (). (Select 3 Answers)
Point-to-point wireless bridges can be used to connect two networks located at different locations. In the wireless backbone connection, they are set to different channels. Root AP and Leaf AP Should be set
The basic service set is 802.11 The basic components of a network are composed of a group of workstations that communicate with each other.
For areas with roaming needs, adjacent AP Coverage remains 50% The above overlap to ensure that the terminal is AP Smooth switching between.
For the choice of WLAN coverage antennas, it is recommended to choose () for long and narrow areas, and () for wide and short-distance areas.
Large companies have more video conferences, and QoS generally adopts the () service model.
BSS Full name Basic Service Set ,BSS It can be divided Independent BSS and Infrastructure BSS Two kinds.
dBm is a unit for measuring signal strength, and this can be converted into a value in mW. Which of the following unit conversions are true?
Drag the networking modes on the left to their corresponding characteristics on the right.
Which of the following types of frames does a STA receive to obtain surrounding wireless network information during passive scanning?
Which of the following types of frames does a STA send to obtain surrounding wireless network information during active scanning?
Which of the following options are 802.11b/g What are the differences between the agreements? (Select 3 Answers)
exist WLAN In the networking configuration, finally AC6605 What command must be executed to send the configuration to AP1 middle()?
Which of the following statements about Huawei's agile distributed Wi-Fi solution is false?
According to the different signal parameters controlled, what modulation methods can be divided into ()? (Select 3 Answers)
Which of the following standards organizations implements WLAN technical interoperability for WLAN equipment certification ()?
The MEth0/0/1 interface of AC6605 is used for in-band network management. The default address is: 192.168.1.1/24, and it cannot be modified.
What are the general methods to solve co-channel interference (). (Select 3 Answers)
The lobe width is a very important parameter commonly used in directional antennas. It refers to the width of the antenna's radiation pattern below the peak (.)dB The angle of the premises
If there is a high demand for WLAN capacity in a coverage area, the construction method of () should be considered.
According to the 802.11 random backoff mechanism, the backoff time must be an integer that is a multiple of the timeslot time.
Among the following priority queues, the () queue has the highest default priority.
If one wireless client connects to two AP identical SSID Next, what is used to determine which wireless terminal is connected to? ()?
AP
The following statement about the AP access control method is incorrect ().
(Select 2 Answers)
Which of the following factors need to be taken into account when selecting a device in WLAN planning?
Telnet is one of the ways to manage AP remotely. Telnet authentication based on username and password can be realized through configuration.
What was the name of the first radio communication network based on packet technology ()?
Which of the following 802.11 control frames is sent by a STA to acquire the right to the wireless medium?
The following figure shows the WLAN topology of an enterprise. If the direct forwarding mode is used without taking policy-based routing into account, which of the following paths may be used on the network?
The electrical performance indicators of the antenna include ().
(Select 3 Answers)
2.4 GHz What is the distance between the center frequencies of the channels in the frequency band ()?
Radio frequency mainly uses spread spectrum technology. Which of the following technologies belong to spread spectrum technology ()? (Select 2 Answers)
Which of the following is correct about the power calculation ()?
(Select 3 Answers)
thin AP In the networking, which of the following authentication methods is not required in the authentication process AC participate().
AP If you want to pass DNS Server fetch AC of IP Address, first get your own IP address,DHCP Server and DNS of IP address.
Spread spectrum ( spread-spectrum ) Technology is to use ISM The basis of frequency band transmission of wireless data.
MIMO(Multiple input and multiple output) The client can use at most 3 Two spatial streams transmit data at the same time, and the maximum theoretical rate can reach , That is, multiple input and multiple output, using 600Mbps . 802.11n Technology wireless access point and guest
Which of the following devices belong to Huawei Wireless Dual Band AP(Access Point )?
(Select 2 Answers)
antenna A The gain is 11dBi ,antenna B The gain is 8dBi , You can say the antenna A Than antenna B The gain is large ().
Which of the following functions does the Huawei WLAN planning tool have ()?
(Select 3 Answers)
WLAN security policies are configured in security profiles. As such, WPA/WPA2 PPSK must be configured in the security profiles.
802.11n Standard uses dual band (2.4GHz and 5GHz ), the theoretical transmission rate can reach up to 300Mbps, The actual test rate can reach arrive 100Mbps above.
For outdoor long-distance point-to-point backhaul, the antenna of () should be selected.
Regarding the two major PoE standards, the following statement is incorrect ().
(Select 2 Answers)
TKIP Encryption ratio WEP Encryption security is high because of (). (Select 3 Answers)
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).
Same user VLAN And the same SSID All wireless users can access the Internet, but they can’t access each other. What may be the cause of this phenomenon ()?
PPPoE Certified in WLAN When used, and WLAN The authentication encryption used by itself does not matter.
TESTED 27 Dec 2024
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