H12-311_V3.0 HCIA-WLAN V3.0 Questions and Answers

AP able to pass POE The switch performs power supply and data transmission.

Which of the following statements about antenna gain are true?

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?

exist WLAN In the networking configuration, finally AC6605 What command must be executed to send the configuration to AP1 middle()?

Huawei Wireless AP What are the two upgrade modes download ()? (Select 2 Answers)

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?

Among the following options, () is the reason for using 5G priority access.

It can be connected with the antenna via ().

WEP The encrypted data algorithm uses () algorithm.

AP Domain AP The deployment type does not include ().

In China, legally supported WLAN The frequency band has ().

(Select 2 Answers)

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.

Configuration AP Authentication mode, AP What are the supported authentication methods

()? (Select 3 Answers)

Compared with 802.11a/b/g, the technical advantages of 802.11n include which of the following aspects ()?

Which of the following ports can only belong to 1 Piece VLAN ().

Regarding the two major PoE standards, the following statement is incorrect ().

(Select 2 Answers)

Int-Serv The model provides users with end-to-end absolute

When a hardware failure occurs in an AP in the network, in order to avoid data reconfiguration, the user can quickly complete the AP replacement by configuring the AP.

replace.

Which of the following options is correct ()? (Select 3 Answers)

Which of the following statements about establishing CAPWAP control and data tunnels are false?

CAPWAP Which of the following standards organization proposed the agreement ()?

CAPWAP Protocol support Split Mac and Local Mac Two working modes.

Which of the following types of frames does a STA receive to obtain surrounding wireless network information during passive scanning?

When collecting fault information, you need to collect device logs, including ___ logs and ___ logs.

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( ).

For one adopts WPA2 PSK Certified and SSID For broadcast wireless networks, users can double-click the username and password to access the network. SSID And enter the correct use

an examination AP What is the command of the running system version ()?

WLAN The commonly used radio frequency cables in the system are (). (Select 3 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 ()?

What frame does the wireless client actively scan to obtain the surrounding wireless network information ()?

A large number of devices appear AP and AC How to deal with the version mismatch failure ().

802.11 Frame, when the network uses WDS When the model is signaled, To DS and From DS What are the values of ()?

802.11g What rates can be supported?

Which of the following technologies work at 5 GHz ()? (Select 2 Answers)

Which of the following types of frames does a STA send to obtain surrounding wireless network information during active scanning?

The following command can configure the port of the Huawei switch as hybrid model()?

Large companies have more video conferences, and QoS generally adopts the () service model.

A 10 Floors of buildings need to be covered WLAN Signal, because taking into account the floor block,

which can be set to 6 channel.

5,6 Layered WLAN Signal frequency

exist WLAN Involved in the configuration VLAN What kinds of types are there ()?

(Select 3 Answers)

for CAPWAP Agreement, the error described below is ().

Which of the following 802.11 interframe spaces is the longest?

Which of the following commands can be used to clear counter statistics?

about WDS Which of the following statements is correct ()? (Select 2 Answers)

802.11a What are the supported rates ()?

Antennas are classified according to directivity and can be divided into () antennas and () antennas.

(Select 2 Answers)

For shared key authentication, the error described below is ().

Which of the following statements is correct ()?

(Select 2 Answers)

BSS Which two basic service sets are included ()? (Select 2 Answers)

Which modulation method is the picture below ()?

Huawei AP6310AP Outdoor type AP,can support WDS Function to realize the point-to-multipoint wireless bridging function.

Which of the following protocols support 2.4GHz Frequency band()? (Select 3 Answers)

Wireless network engineer WLAN When planning the network, use RF The purpose of simul-ation is (). (Select 3 Answers)

IEEE 802.11 The standard used to define roaming is ().

802.11b Which channels in the protocol do not overlap each other()? (Select 3 Answers)

Which of the following options are 802.11b/g What are the differences between the agreements? (Select 3 Answers)

If you want to create an open authentication security template, the following correct configuration is ().

Which of the following options is the frequency range supported by China 5GHz Frequency band()?

Telnet is one of the ways to manage AP remotely. Telnet authentication based on username and password can be realized through configuration.

AP Transmit power 20dBm , Antenna gain 4dBi , Cable and device loss 1dB , Terminal receiving antenna gain 2dBi , Space propagation loss 80dB , Terminal receiving level RSSI= ().

After one data frame is sent and confirmed, what is the time interval to wait before sending the next data frame ()?

2.4 GHz What is the range of operating frequency specified by China ()?

Which of the following 802.11 control frames is sent by a STA to acquire the right to the wireless medium?

User number 300 People, concurrency rate 70% , Terminal support 2.4GHz and 5GHz Frequency band, in accordance with each AP Maximum number of dual-band access users40 people

Consider, need at least () AP Able to meet capacity requirements?

When did the initial application of wireless networks begin ()?

IEEE It is the standards organization responsible for the use of wireless frequencies in the United States.

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.

According to the following output, the correct statement below is ().

display version

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)

China in 2.4GHz How many channels does the frequency band support ()?

WLAN The signal passes through which of the following materials with less penetration loss (). (Select 2 Answers)

when AC When it is a bypass networking, if the data is forwarded directly, then the data flow () flow () AC. AC; If the data is in tunnel forwarding mode, the data

eSight The network management is Huawei's dedicated network management platform, but it can only manage Huawei's own equipment.

exist 802.1X In the agreement, you must have () to be able to complete the authentication and authorization of the user. (Select 3 Answers)

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 agreements are IEEE customized 802.11 standard() ? (Select 3 Answers)

Which of the following wireless frames are control frames ()? (Select 3 Answers)

The distance between the center frequencies of the two channels is less than or equal to

In order to avoid adjacent channel interference during domain channel planning, the same channel is not allowed to be used.

25MHz When there is an overlapping area between the channels, there will be some interference, so in the adjacent area

Perform connectivity test AP or AC Must be online.

Basic service sets (BSSs) are basic WLAN units.

Indoor installation AP The power is generally () mW .

The following transmission rate can reach 54Mbps What are the wireless LAN standards and above ()? (Select 3 Answers)

original 802.11 What is the working frequency band used by the agreement ()?

QoS What kinds of service models are included ()

(Select 3 Answers)

The index used to describe the degree of antenna convergence of the transmit power is (

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 ()?

WLAN middle,AP It has been working in a half-duplex state.

Terminal is different VLAN The roaming within belongs to ().

In enterprise office scenarios, 40 MHz channel bandwidth is usually configured on the 2.4 GHz frequency band.

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.

Which of the following statements about region is correct ()?

(Select 3 Answers)

WLAN security policies are configured in security profiles. As such, WPA/WPA2 PPSK must be configured in the security profiles.

AP What are the reasons for being unable to go online ()?

(Select 3 Answers)

If an enterprise’s wireless network networking mode is direct forwarding, then thin and then transfer the message CAPWAP Encapsulate, pass CAPWAP The tunnel transmits this data message to AP can 802.11 Data messages are converted into Ethernet messages, AC.

The following pairs PSK The authentication description is wrong ().

service-set What are the options that can be configured under ()? (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?

Huawei AC6605 What is the command to switch between the wired side and the wireless side ()?

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.

If one wireless client connects to two AP identical SSID Next, what is used to determine which wireless terminal is connected to? ()?

AP