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Question # 4

Which of the following are AP Factors to consider in capacity planning ().

(Select 3 Answers)

A.

Equipment performance

B.

Number of concurrent users

C.

Bandwidth requirement

D.

Power supply type

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Question # 5

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

A.

FHSS

B.

DSSS

C.

OFDM

D.

MIMO

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Question # 6

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( ).

A.

1 ,6,11

B.

2 ,7,12

C.

6 ,11,1

D.

11 ,6,1

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Question # 7

The omnidirectional antenna appears on the horizontal pattern as ()Spend.

A.

90

B.

180

C.

360

D.

0

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Question # 8

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

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

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Question # 9

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= ().

A.

-57

B.

-56

C.

-55

D.

-54

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Question # 10

about 5G The working principle of priority, the following statement is correct ().

A.

5G Priority characteristics refer to 5G Client sends data first

B.

5G After the priority is turned on, only support 2.4G The network transmission speed of the client will be slower

C.

5G Priority request AP Is dual frequency AP Can work normally

D.

5G Priority requires all clients to support at the same time

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Question # 11

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

A.

Upgrade the versions to match each other

B.

replace AP equipment

C.

Replace the switch

D.

an examination POE Is the power supply normal

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Question # 12

802.11 Wireless LAN CSMA/CA Which of the following are included in the mechanism ()? (Select 3 Answers)

A.

Carrier sense

B.

Multiple access

C.

Conflict detection

D.

Conflict avoidance

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Question # 13

exist PoE Terminology PSU Full name is Power Supply Unit , Refers to the power supply unit, such as PoE The Ethernet interface of the switch.

A.

True

B.

False

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Question # 14

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

A.

True

B.

False

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Question # 15

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

A.

access

B.

hybrid

C.

trunk

D.

eth-trunk

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Question # 16

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

(Select 3 Answers)

A.

DHCP Incorrect address pool configuration AP Unable to get address

B.

AP Use static discovery, but AC of IP Configuration error

C.

AP Version with AC Inconsistent versions

D.

The controller uses no-auth Authentication mode

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Question # 17

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 ()?

A.

0,0

B.

0,1

C.

1,0

D.

1,1

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Question # 18

If changed AP The configuration parameters of the radio must be restarted AP The order can only take effect.

A.

True

B.

False

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Question # 19

BSS Full name Basic Service Set ,BSS It can be divided Independent BSS and Infrastructure BSS Two kinds.

A.

True

B.

False

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Question # 20

Which of the following functions does the Huawei WLAN planning tool have ()?

(Select 3 Answers)

A.

Support automatic identification of obstacles

B.

Support the division of general coverage areas and key coverage areas

C.

Support automatic deployment of AP locations

D.

Support exporting standardized WLAN planning reports

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Question # 21

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

(Select 2 Answers)

A.

2.4-2.4835GHz

B.

5.15-5.25GHz

C.

5.25-5.35GHz

D.

5.725-5.850GHz

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Question # 22

AP The systematic process of radio frequency resource management is ().

A.

Acquisition -> Decision -> Analysis -> Execution

B.

Analysis -> Acquisition -> Decision -> Execution

C.

Acquisition -> Analysis -> Execution -> Decision

D.

Acquisition -> Analysis -> Decision -> Execution

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Question # 23

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 ()?

A.

50%

B.

No need to overlap

C.

100%

D.

10%-15%

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Question # 24

The equipment manufacturer can usually be judged according to the following ().

A.

SSID

B.

MAC address

C.

Encryption type

D.

channel

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Question # 25

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

A.

SSID Technology can divide a wireless local area network into several sub-networks that require different authentication. Each sub-network requires independent

authentication. Only users who pass the authentication can enter the corresponding sub-network to prevent unauthorized users from entering This network.

B.

BSSID Is actually AP of MAC Address, used to identify AP Managed BSS , In the same AP Inside BSSID and SSID One-to-one mapping.

C.

Users can be in different SSID Roaming is realized below.

D.

in a ESS Inside SSID Is the same, but for ESS Within each AP Corresponding BSSID Are not the same. If oneAP Can support multiple at the

same time SSID , Then AP Will assign different BSSID To correspond to these SSID .

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Question # 26

WEP The encrypted data algorithm uses () algorithm.

A.

RC4

B.

AES

C.

CCMP

D.

Asymmetric encryption

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Question # 27

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

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

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Question # 28

Huawei eSight Network management wizard-style configuration WLAN Business needs to be added in the network management first AC equipment.

A.

True

B.

False

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Question # 29

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

A.

802.11a

B.

802.11b

C.

802.11g

D.

802.11n

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Question # 30

about" AP6010DN

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

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Question # 31

Which of the following descriptions of power splitters and couplers are correct is ().

A.

Power divider and coupler are equal power distribution

B.

The power divider is equal power distribution, and the coupler is unequal power distribution

C.

The power divider is unequal power distribution, and the coupler is equal power distribution

D.

Power divider and coupler are unequal power distribution

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Question # 32

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

A.

Analog signal coverage effect, find blind spots

B.

Obtain the field strength distribution of different locations

C.

Get the current signal-to-noise ratio of different locations

D.

Get available bandwidth in different locations

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Question # 33

Used as AP and AC Establish CAPWAP tunnel VLAN What is it VLAN ()?

A.

manage VLAN

B.

Serve VLAN

C.

user VLAN

D.

Certification VLAN

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Question # 34

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.

A.

True

B.

False

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Question # 35

Configure the security policy of the wireless network as WEP , You need to AC6605 The security template is configured as follows ().

A.

security-policy wep

wep authentication-method open

wep key wep-40 hex 0 1234567890

wep default-key 0

B.

security-policy wep

policy wep share-key

wep key wep-40 hex 0 1234567890

wep default-key 0

C.

authentication policy wpa

wpa authentication-method share-key

wpa key wpa-40 hex 0 1234567890 wpa

default-key 0

D.

authentication policy wpa2

wpa2 authentication-method share-key

wpa2 key wpa2-40 hex 0 1234567890

wpa2 default-key 0

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Question # 36

In order to facilitate management and maintenance, AP The power supply mode is generally preferred to select () for power supply.

A.

Independent power adapter

B.

POE switch

C.

POE adapter

D.

AC power supply

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Question # 37

exist PoE Of terms, AP What does it belong to ()?

A.

PSE

B.

PD

C.

PI

D.

PSU

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Question # 38

If there is a high demand for WLAN capacity in a coverage area, the construction method of () should be considered.

A.

Combination of indoor distribution system

B.

Combination of outdoor distribution system

C.

Indoor installation

D.

Outdoor AP+ directional antenna

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Question # 39

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

A.

True

B.

False

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Question # 40

In the following options, () is not the main purpose of roaming.

A.

Avoid long authentication time during roaming, resulting in packet loss or even business interruption

B.

Ensure that the user authorization information remains unchanged

C.

Guarantee users IP The address remains unchanged

D.

Ensure that the user's network rate remains unchanged

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Question # 41

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

A.

Limited bandwidth reservation

B.

Low forwarding efficiency

C.

Scalability is not good

D.

Not conducive to traffic monitoring

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Question # 42

2.4 GHz What is the distance between the center frequencies of the channels in the frequency band ()?

A.

20 MHz

B.

22 MHz

C.

5 MHz

D.

10 MHz

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Question # 43

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

A.

WiFi

B.

IEEE

C.

IETF

D.

FCC

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Question # 44

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

A.

True

AP Architecture and traditional independent fat AP Architecture.

B.

False

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