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Radio frequency mainly uses spread spectrum technology. Which of the following technologies belong to spread spectrum technology ()? (Select 2 Answers)
WLAN The commonly used radio frequency cables in the system are (). (Select 3 Answers)
Huawei eSight Network management wizard-style configuration WLAN Business needs to be added in the network management first AC equipment.
802.11 In the frame, STA Which type of frame () does the association request and authentication request belong to?
Which of the following 2.4GHz The frequency bands are non-overlapping
channels (). (Select 3 Answers)
Antennas are classified according to directivity and can be divided into () antennas and () antennas.
(Select 2 Answers)
In order to facilitate management and maintenance, AP The power supply mode is generally preferred to select () for power supply.
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.
What frame does the wireless client passively scan to obtain the surrounding wireless network information ()?
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
802.11b Support () channels in the United States, among which () channels do not overlap?
Which of the following statements about region is correct ()?
(Select 3 Answers)
MIMO The antenna configuration is usually expressed as " M*N ",in M and N What does each mean ()?
(Select 2 Answers)
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 ()?
original 802.11 What is the working frequency band used by the agreement ()?
Which of the following options is 802.11g The maximum rate supported by the protocol ()?
If you want to create an open authentication security template, the following correct configuration is ().
Compared with 802.11a/b/g, the technical advantages of 802.11n include which of the following aspects ()?
In the WDS point-to-point network, the backbone link between Root AP and Leaf AP is connected in the 5GHz frequency band. The frequency band is 149. Which of the following frequency bands () should Leaf AP use?
Metal objects have a greater attenuation effect on wireless signals, AP Or the antenna should not be placed behind a metal ceiling, etc.
Each AC Equipment needs to be specified AC The source of IP Address for peace AP Establish CAPWAP Tunnel, one AC You can specify up to 2 Piece WLAN source IP.
Which of the following protocols support 2.4GHz Frequency band()? (Select 3 Answers)
Which of the following statements are correct () ? (Select 3 Answers)
(Select 3 Answers)
if AP Work in infrastructure mode, then AP The working state at this time is full-duplex mode.
AP What are the reasons for being unable to go online ()?
(Select 3 Answers)
exist 802.11 In the frame, which type of message is used by the terminal to receive data packets in the power-saving mode?
802.11n exist 20M How many sub-carriers can be used to transmit data in the mode ()?
Which configuration methods does the wireless controller support ()?
(Select 3 Answers)
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
There are three ways to judge Huawei's load balancing: traffic mode, session mode, and virtual switching mode.
Which of the following agreements are IEEE customized 802.11 standard() ? (Select 3 Answers)
Among the following obstacles, () has the largest loss of wireless signals.
The electrical performance indicators of the antenna include ().
(Select 3 Answers)
What series of Huawei switches () is the Huawei plug-in controller ACU board suitable for?
(Select 3 Answers)
The two commonly used units to describe antenna gain are dBi and dBd , The conversion relationship between them is: dBi=dBd+2.14 .
Which of the following options is the frequency range supported by China 5GHz Frequency band()?
802.11 In the frame, Address Which address bit represents the address of the receiving end of the frame ()?
In the direct-connected networking solution, AP and AC Establish CAPWAP Tunnel, the management flow must be encapsulated in CAPWAP In the tunnel, data service
The stream can be optionally encapsulated in CAPWAP In the tunnel.
exist WDS In the deployment, what kinds of bridge networking modes are included ()? (Select 3 Answers)
In China, legally supported WLAN The frequency band has ().
(Select 2 Answers)
802.11b Which channels in the protocol do not overlap each other()? (Select 3 Answers)
A large number of devices appear AP and AC How to deal with the version mismatch failure ().
2.4 GHz How many channels () can the frequency band be divided into at most?
Which of the following functions does the Huawei WLAN planning tool have ()?
(Select 3 Answers)
for AC6605 , The following command () can be used to view AP Is it online?
Which two of the following are PoE The power supply standard ()? (Select 2 Answers)
What was the name of the first radio communication network based on packet technology ()?
802.11 Frame, when the network uses WDS When the model is signaled, To DS and From DS What are the values of ()?
After one data frame is sent and confirmed, what is the time interval to wait before sending the next data frame ()?
create radio-profile Must be bound wmm-profile Only possible, otherwise there will be configuration errors.
If the terminal supports 5GHz and 2.4GHz Function, then AP Can be configured to control this kind of terminal priority access 5GHz .
CAPWAP Which of the following standards organization proposed the agreement ()?
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 () service model can provide end-to-end QoS services, but the scalability is not good.
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
If connected to the same SSID Of wireless clients want to start from a AP Roam to another AP, Then two AP The area where the signal overlaps between. What is the general range ()?
Which of the following are the relevant parameters of the Traffic template ().
(Select 2 Answers)
TESTED 19 May 2024