According to the 802.11 random backoff mechanism, the backoff time must be an integer that is a multiple of the timeslot time.
CAPWAP The agreement is made by IEEE Standards organization in 2009 year 4 One of the month WLAN Standard for AC And thin AP Communication between.
Which of the following statements is correct ()?
(Select 2 Answers)
For outdoor long-distance point-to-point backhaul, the antenna of () should be selected.
Which of the following is IEEE A wireless local area network standard originally formulated ()?
Which of the following factors need to be taken into account when selecting a device in WLAN planning?
Huawei eSight Network management wizard-style configuration WLAN Business needs to be added in the network management first AC equipment.
802.11 Frame, when the network uses WDS When the model is signaled, To DS and From DS What are the values of ()?
original 802.11 What is the working frequency band used by the agreement ()?
The following command can configure the port of the Huawei switch as hybrid model()?
Which of the following statements is true about the coverage distance design principles of a single AP (20 dBm)?
AAA It is a management framework, which is commonly used to implement () protocol.
If an SSID is incorrectly configured, STAs may not discover the target Wi-Fi. How do I modify the SSID to enable STAs to discover the target Wi-Fi?
TKIP encrypted IV the length of the vector is () bit.
exist WDS In the networking, it is connected to AC connected AP What is usually called ()?
There are numerous methods of restarting a device. For example, onsite maintenance personnel can restart a device in cold restart mode, while remote maintenance personnel can restart a device only in ___ mode.
an examination AC What is the command for online users ()?
Which of the following 802.11 control frames is sent by a STA to acquire the right to the wireless medium?
Defined WLAN Medium service quality 802.11 The agreement is ().
for CAPWAP Agreement, the error described below is ().
Originally only supported TKIP The wireless network card can be upgraded through the driver to support AES encryption.
Regarding the two major PoE standards, the following statement is incorrect ().
(Select 2 Answers)
Which technology belongs to the wireless metropolitan area network () below?
Drag WLAN concepts on the left to their corresponding descriptions on the right.
What is the initialization state of an AP before the AP establishes a link with an AC for the first time?
if AP Work in infrastructure mode, then AP The working state at this time is full-duplex mode.
2.4 GHz What is the range of operating frequency specified by China ()?
Which of the following statements about antenna gain are true?
If a AP Has been added offline, then AP You can go online directly.
The following statement about the AP access control method is incorrect ().
(Select 2 Answers)
In a large wireless network deployment scenario, AC When configured to "Layer 3 networking + bypass mode + direct forwarding", the gateway of the wireless user should. Where is it located ()?
WLAN AP It can be powered by ().
(Select 3 Answers)
802.11g What is the bandwidth of each channel of the frequency band ()?
Barker Code is a 11 Bit sequence (e.g. 10110111000 ), there are advantages in wireless transmission, which can effectively reduce interference, but it reduces efficiency.
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.
Which of the following commands is not necessarily run in the WLAN view?
A company wants to deploy WLAN, the company has purchased a batch of wireless APs that support 802.11n, when WLAN is deployed, only support Only 802.11n wireless clients can connect to the company's WLAN
Which of the following options is the frequency range supported by China 5GHz Frequency band()?
Which of the following statements is true about shared key authentication?
Telnet is one of the ways to manage AP remotely. Telnet authentication based on username and password can be realized through configuration.
In order to facilitate management and maintenance, AP The power supply mode is generally preferred to select () for power supply.
Huawei Box Wireless Controller AC6605 support twenty four Piece PoE Interface in WLAN Can be directly connected when networking AC of AP Make a supply
Electricity.
service-set What are the options that can be configured under ()? (Select 3 Answers)
AP The size of the coverage area is controlled by ().
(Select 2 Answers)
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.
Which two of the following are PoE The power supply standard ()? (Select 2 Answers)
What are the general methods to solve co-channel interference (). (Select 3 Answers)
802.11a exist 20M How many sub-carriers can be used to transmit data in the mode ()?
AP Domain AP The deployment type does not include ().
exist WLAN middle ACK What type of frame() does the frame belong to?
display ap all Command can be viewed AP of MAC ,Type And running status.
BSS Full name Basic Service Set ,BSS It can be divided Independent BSS and Infrastructure BSS Two kinds.
create radio-profile Must be bound wmm-profile Only possible, otherwise there will be configuration errors.
exist WLAN Involved in the configuration VLAN What kinds of types are there ()?
(Select 3 Answers)
Which of the following descriptions of power splitters and couplers are correct is ().
802.11a What kind of technology is used to implement the agreement?
802.11 There are three frame types, namely (). (Select 3 Answers)
exist 1 Floor deployment 3 Piece AP, The channels from left to right are 1,6,11, At this time 2 Floor deployment 3 Piece AP Channel should be be divided into( ).
The two commonly used units to describe antenna gain are dBi and dBd , The conversion relationship between them is: dBi=dBd+2.14 .
In the following description of WEP encryption, the error is ().
Which of the following types of frames is the 802.11 ACK frame?
802.11 What parameters are used in the frame to reorganize the frame segment ()?
Which of the following 2.4GHz The frequency bands are non-overlapping
channels (). (Select 3 Answers)
According to the following output, the correct statement below is ().
Huawei Versatile Routing Platform Software
VRP (R) software, Version 5.70 (AC6605 V200R001C00)
Copyright (C) 2003-2012 Huawei TECH CO., LTD
Quidway AC6605-PWR Routing Switch uptime is 0 week, 1 day, 23 hours, 33 minutes
H852V26S 0(Master): uptime is 0 week, 1 day, 23 hours, 33 minutes
512M bytes DDR Memory
128M bytes FLASH
Check the running status of the AC6605.
(Select 3 Answers)
Which modulation method is the picture below ()?
CAPWAP Which of the following standards organization proposed the agreement ()?
802.11 In the frame, it means that the wireless station AP When sending a signal, To DS and From DS What are the values of ()?
What is the recommended AC-ID for Huawei wireless controllers when configuring enterprise network WLAN services ()?
Terminal is different VLAN The roaming within belongs to ().
Which of the following types of frames does a STA send to obtain surrounding wireless network information during active scanning?
China in 2.4GHz How many channels does the frequency band support ()?
AP able to pass POE The switch performs power supply and data transmission.
Which of the following commands connect Huawei to the switch
What series of Huawei switches () is the Huawei plug-in controller ACU board suitable for?
(Select 3 Answers)
Which of the following 802.11 interframe spaces is the longest?
For areas with roaming needs, adjacent AP Coverage remains 50% The above overlap to ensure that the terminal is AP Smooth switching between.
According to the following configuration example, the following statement is correct ().
[AC] dhcp enable
[AC] interface VLANif100
[AC-VLANif100] ip address 10.1.100.1 24
[AC-VLANif100] dhcp select interface
[AC-VLANif100] quit
CCMP Encryption ratio TKIP Encryption security is high because of ().
The following about SSID The statement is wrong ().
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 ()?
2.4 GHz What is the distance between the center frequencies of the channels in the frequency band ()?
TKIP Encryption ratio WEP Encryption security is high because of (). (Select 3 Answers)
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.
The AirEngine 9700D-M is Huawei's next-generation Wi-Fi 6 AC.
It can be connected with the antenna via ().
In a dual-link backup network, AP According to what distinguishes the main use AC And spare AC of()?
(Select 3 Answers)
AC What is the function in the wireless network()? (Select 3 Answers)
Basic service sets (BSSs) are basic WLAN units.
The following pairs PSK The authentication description is wrong ().
BSSID Is actually AP of MAC Address, used to identify AP Managed BSS .
AP Unavailable IP Common reasons for addresses are (). (Select 3 Answers)
In the following options, () is not the main purpose of roaming.
The wireless LAN architecture is mainly divided into controller-based thin
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
eSight The network management is Huawei's dedicated network management platform, but it can only manage Huawei's own equipment.
Which of the following authentication modes belong to link authentication?
The following figure shows the WLAN topology of an enterprise. If the tunnel forwarding mode is used, which of the following paths may be used on the network?
Which configuration methods does the wireless controller support ()?
(Select 3 Answers)
In an 802.11 frame, what kind of control message () should be sent by the terminal to obtain access to the wireless medium?
exist WLAN In the networking configuration, finally AC6605 What command must be executed to send the configuration to AP1 middle()?
Huawei Wireless Controller AC6605 Supports user access security management through security templates, and supports WAPI Four security strategies.
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