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Huawei H12-311_V3.0 HCIA-WLAN V3.0 Exam Practice Test

Demo: 44 questions
Total 297 questions

HCIA-WLAN V3.0 Questions and Answers

Question 1

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

(Select 2 Answers)

Options:

A.

Plate

B.

paraboloid

C.

Omnidirectional

D.

Orientation

Question 2

In a dual-link backup network, AP According to what distinguishes the main use AC And spare AC of()?

(Select 3 Answers)

Options:

A.

priority

B.

AC of IP address

C.

AC Load condition

D.

AC response AP Time of day

Question 3

20dBm Equivalent to () mW .

Options:

A.

100

B.

200

C.

500

D.

1000

Question 4

Indoor installation AP The power is generally () mW .

Options:

A.

100

B.

500

C.

800

D.

50

Question 5

Regarding the functional characteristics of AP6010SN, which of the following statements is correct is ().

(Select 2 Answers)

Options:

A.

AP6010SN is an indoor distributed AP, which only supports working in the 2.4GHz frequency band

B.

AP6010SN has an Ethernet interface and supports 802.3af PoE power supply standard

C.

AP6010SN supports WDS function, which can realize point-to-point and point-to-multipoint wireless bridging

D.

AP6010SN not only has a built-in antenna, but also an external antenna, which is very convenient

Question 6

exist 802.11 In the frame, which type of message is used by the terminal to receive data packets in the power-saving mode?

Options:

A.

RTS

B.

CTS

C.

ACK

D.

PS-Poll

Question 7

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

Options:

A.

Beacon frame

B.

Probe Request frame

C.

Authentication frame

D.

Association Request frame

Question 8

Single area WLAN When planning, influence AP The factors of the number of deployment are ().

(Select 3 Answers)

Options:

A.

Number of people connected in the area

B.

Area size

C.

Field strength and bandwidth requirements

D.

Number of network ports

Question 9

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?

Options:

A.

149

B.

153

C.

157

D.

Apart from 149 It will be all right

Question 10

about" AP6010DN

Options:

A.

AP6010DN

B.

AP6010DN

"The following statement is incorrect for the naming ()

middle" AP"Enterprise network AP In the specific prefix " 601"

On behalf of the standard indoor installation type

.

1 generation

C.

AP6010DN middle"D"represent AP Is dual frequency AP, While supporting 2.4GHz ,5GHz Frequency band

D.

AP6010DN middle"N"represent AP Yes 802.11n of AP

Question 11

support 5GHz What are the wireless LAN standards for frequency

bands ()? (Select 2 Answers)

Options:

A.

802.11a

B.

802.11b

C.

802.11g

D.

802.11n

Question 12

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

Options:

A.

3

B.

4

C.

5

D.

6

Question 13

service-set What are the options that can be configured under ()? (Select 3 Answers)

Options:

A.

able to pass ssid xxxx Configuration SSID String

B.

Can be bound wmm-profile

C.

Can call wlan-ess Interface and configuration service-vlan

D.

The forwarding mode can be configured as direct-forward or tunnel-forward

Question 14

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

Options:

A.

Beacon frame

B.

Probe Request frame

C.

Authentication Request frame

D.

Association Request frame

Question 15

In huawei eSight The maximum number of layers supported by the location topology in the network management system is layer ().

Options:

A.

7

B.

8

C.

9

D.

10

Question 16

In a point-to-multipoint networking environment, one device serves as the central device, and all other devices only establish wireless bridges with the central device to realize the interconnection of multiple networks. The disadvantage is that the intercommunication of multiple branch networks must be forwarded through the central bridge device.

Options:

A.

True

B.

False

Question 17

CAPWAP Tunnel encapsulation AC The port number of the side data packet is5246 , The control message port number is5247 .

Options:

A.

True

B.

False

Question 18

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

Options:

A.

Limited bandwidth reservation

B.

Low forwarding efficiency

C.

Scalability is not good

D.

Not conducive to traffic monitoring

Question 19

802.11n MAC Which of the following are included in the layer improvement

technology ()? (Select 2 Answers)

Options:

A.

Frame aggregation technology

B.

MIMO Technology

C.

Block confirmation technology

D.

Beamforming technology

Question 20

The wireless LAN architecture is mainly divided into controller-based thin

Options:

A.

True

AP Architecture and traditional independent fat AP Architecture.

B.

False

Question 21

CCMP Encryption ratio TKIP Encryption security is high because of ().

Options:

A.

Used longer IV

B.

Added a key distribution mechanism, no longer using a single key

C.

A more complex encryption algorithm is used

D.

Added message integrity check mechanism

Question 22

AP What factors are related to the coverage (). (Select 3 Answers)

Options:

A.

AP Transmit power

B.

Antenna gain

C.

AP Size

D.

Transmission loss

Question 23

Which of the following standards organizations implements WLAN technical interoperability for WLAN equipment certification ()?

Options:

A.

WiFi

B.

IEEE

C.

IETF

D.

FCC

Question 24

BSSID Is actually AP of MAC Address, used to identify AP Managed BSS .

Options:

A.

True

B.

False

Question 25

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

Options:

A.

True

B.

False

Question 26

The following description about dual-link backup networking is incorrect ()

Options:

A.

Dual-link backup technology improves network reliability at important network nodes and ensures business stability

B.

Prepare AC Always be in the power-on state

C.

exist AP With active and standby AC In the process of establishing active and standby links, the link established first must be the active link

D.

Active and standby AC The network service configuration on the Internet must be consistent

Question 27

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.

Options:

A.

True

B.

False

Question 28

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

Options:

A.

True

B.

False

Question 29

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

Options:

A.

FCC

B.

IETF

C.

CCC

D.

ETSI

Question 30

Among the following options, () is a prerequisite for enabling Huawei's load balancing function.

Options:

A.

AP Belong to the same type

B.

AP In the same AC Under management, and AP Signal overlap

C.

STA Can scan to each other for load balancing AP

D.

AP The output power settings are the same

Question 31

802.11a What kind of technology is used to implement the agreement?

Options:

A.

FHSS

B.

DSSS

C.

OFDM

D.

MIMO

Question 32

CAPWAP The port number of the control message of the tunnel protocol is ().

Options:

A.

1645

B.

1646

C.

5246

D.

5247

Question 33

By a wireless AP And what is the network of associated wireless clients called ()?

Options:

A.

IBSS

B.

BSS

C.

ESS

D.

NSS

Question 34

Which technology belongs to the wireless metropolitan area network () below?

Options:

A.

2G/3G

B.

WLAN

C.

Bluetooth

D.

WiMAX

Question 35

Which of the following statements is correct ()?

(Select 2 Answers)

Options:

A.

When the user performs web authentication, it is triggered by the user's http message before the IP address is successfully obtained; at this time, it is forcibly redirected to the portal server,

Go through the certification process

B.

When the user performs web authentication, it is triggered by the user's http message after successfully obtaining the IP address; at this time, it is forcibly redirected to the portal server,

Go through the certification process

C.

WPA2 uses 802.1X authentication

D.

WPA only supports TKIP, an encryption technology

Question 36

Which configuration methods does the wireless controller support ()?

(Select 3 Answers)

Options:

A.

telnet Configuration

B.

console Port configuration

C.

pass through eSight Configuration

D.

LLDP Configuration

Question 37

for AC+ thin AP The network architecture, the following description is wrong ().

Options:

A.

AP Can't work alone, need to be AC Centralized agent maintenance management

B.

able to pass AC Enhance business QoS, Security and other functions

C.

AP Zero configuration itself, suitable for large-scale networking

D.

Must be achieved through the network management system AP And user management

Question 38

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

Options:

A.

True

B.

False

Question 39

WIDS Attack detection contains ().

(Select 3 Answers)

Options:

A.

Flood Attack detection

B.

Weak IV Attack detection

C.

Spoof Attack detection

D.

Microwave interference detection

Question 40

AC Perform the load balancing process according to () information.

Options:

A.

AP Periodically to AC Send its associated STA Information

B.

STA Periodically report the current associated AP Logo

C.

AC Timed query AP Associated STA number

D.

STA Periodically search the surrounding AP Information and through association AP Report AP Logo

Question 41

802.11b Support () channels in the United States, among which () channels do not overlap?

Options:

A.

14 ; 3

B.

11; 3

C.

11 ; 6

D.

14 ; 6

Question 42

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

Options:

A.

AC-WLAN-view] security-profile name security-1 id 1

[AC-WLAN-sec-prof-security-1] open authentication-method open-system

[AC-WLAN-sec-prof-security-1] security-policy open

[AC-WLAN-sec-prof-security-1] quit

B.

AC-WLAN-view] security-profile name security-1 id 1

[AC-WLAN-sec-prof-security-1] wep authentication-method open-system

[AC-WLAN-sec-prof-security-1] security-policy wep

[AC-WLAN-sec-prof-security-1] quit

C.

AC-WLAN-view] security-profile name security-1 id 1

[AC-WLAN-sec-prof-security-1] wpa authentication-method open-system

[AC-WLAN-sec-prof-security-1] security-policy wpa

[AC-WLAN-sec-prof-security-1] quit

D.

AC-WLAN-view] security-profile name security-1 id 1

[AC-WLAN-sec-prof-security-1] wpa2 authentication-method open-system

[AC-WLAN-sec-prof-security-1] security-policy wpa2

[AC-WLAN-sec-prof-security-1] quit

Question 43

In theory, the network cable used in the project cannot exceed ()rice.

Options:

A.

50

B.

80

C.

100

D.

150

Question 44

The following () service model can provide end-to-end QoS services, but the scalability is not good.

Options:

A.

Best Effort model

B.

IntServ model

C.

FIFO model

D.

DiffServ model

Demo: 44 questions
Total 297 questions