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Free Huawei H12-311 Practice Questions & Answers 2026 Part3 | HCIA-WLAN

Are you preparing for the Huawei H12-311 certification exam? SPOTO offers the Huawei H12-311 Premium File; all questions are aligned with the latest exam content and come with expert-provided answers. Our question banks cover the latest question types, core concepts, and detailed explanations, helping you familiarize yourself with the exam format and difficulty level. Whether you are reviewing core concepts or simulating a real exam environment, these resources will rapidly boost your confidence and readiness.
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Question #1
Which modulation method is the picture below ()?
A. AM
B. FM
C. phase modulation
D. Wave modulation
View answer
Correct Answer: B
Question #2
WLAN What are the working frequency bands ()? (Select 2 Answers)
A. GHz
B. GHz
C.
D.
View answer
Correct Answer: BD
Question #3
exist WDS In the networking, it is connected to AC connected AP What is usually called ()?
A. Leaf AP
B. Middle AP
C. Master AP
D. Root AP
View answer
Correct Answer: D
Question #4
2.4 GHz How many channels () can the frequency band be divided into at most?
A. 14
B. 13
C. 11
D. 3
View answer
Correct Answer: A
Question #5
exist WDS One in the network Root AP Can connect multiple Leaf AP , But a Leaf AP Only one can be connected Root AP .
A. True
B. False
View answer
Correct Answer: A
Question #6
exist WLAN middle ACK What type of frame() does the frame belong to?
A. Management frame
B. Control frame
C. Data Frame
D. Empty data frame
View answer
Correct Answer: B
Question #7
IEEE It is the standards organization responsible for the use of wireless frequencies in the United States.
A. True
B. False
View answer
Correct Answer: B
Question #8
802.11b Support () channels in the United States, among which () channels do not overlap?
A. 14
B. 11
C. 11
D. 14
View answer
Correct Answer: B
Question #9
WLAN planning has requirements on signal field strength in coverage areas. For example, the signal field strength in key areas ranges from -40 dBm to -75 dBm, and that in common areas exceeds -85 dBm.
A. True
B. False
View answer
Correct Answer: B
Question #10
How many channels can the 2.4 GHz band be divided into?
A. 14
B. 13
C. 11
D. 3
View answer
Correct Answer: A
Question #11
To the following WLAN In the description of the network diagram, the error is ().
A. The picture shows the bypass networking
B. Can be configured and managed on the access switch VLAN of PVIDA
C. can use AC As DHCP Server ,give AP distribute IP address
D. You cannot use the aggregation switch to STA distribute IP address
View answer
Correct Answer: D
Question #12
IEEE It is the standards organization responsible for the use of wireless frequencies in the United States.
A. ATrue
B. BFalse
View answer
Correct Answer: B
Question #13
WDS Technology improves the flexibility and convenience of the entire network structure, but it can only support point-to-point working mode.
A. True
B. False
View answer
Correct Answer: B
Question #14
Which of the following agreements are IEEE customized 802.11 standard() ? (Select 3 Answers)
A. 802
B. 802
C. 802
D. 802
View answer
Correct Answer: ABD
Question #15
Which technology is below the wireless metropolitan area network?
A. 2G/3G
B. WLAN
C. Bluetooth
D. WiMAX
View answer
Correct Answer: B
Question #16
Which of the following is the first WLAN standard defined by IEEE?
A. EEE 802
B. EEE 802
C. EEE 802
D. EEE 802
View answer
Correct Answer: A
Question #17
Which of the following technologies work at 5 GHz ()? (Select 2 Answers)
A. adar
B. luetooth
C. nfrared
D. igital satellite
View answer
Correct Answer: AD
Question #18
Which modulation method is the picture below ()?
A. M
B. M
C. hase modulation
D. ave modulation
View answer
Correct Answer: B
Question #19
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
View answer
Correct Answer: C
Question #20
In WLAN, the AP has been working in a half-duplex state.
A. True
B. False
View answer
Correct Answer: A
Question #21
WLAN What are the working frequency bands ()? (Select 2 Answers)
A. GHz
B. GHz
C.
D.
View answer
Correct Answer: BD
Question #22
2.4 GHz What is the frequency band US non-overlapping channel ()?
A. 2,7,12
B. 3,8,13
C. 1,6,11
D. 3,7,13
View answer
Correct Answer: C
Question #23
CAPWAP Which of the following standards organization proposed the agreement ()?
A. FCC
B. IETF
C. CCC
D. ETSI
View answer
Correct Answer: B
Question #24
BSSID Is actually AP of MAC Address, used to identify AP Managed BSS .
A. True
B. False
View answer
Correct Answer: B
Question #25
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. A-57
B. B-56
C. C-55
D. D-54
View answer
Correct Answer: B
Question #26
802.11b supports () channels in the United States, where one channel does not overlap?
A. 14;3
B. 11;3
C. 11;6
D. 14; 6
View answer
Correct Answer: B
Question #27
Which of the following statements about WLAN roaming are false?
A. APs with which a STA is associated before and after roaming can work on different channels
B. During roaming, the STA sends an Association Request frame containing home AP information to the foreign AP
C. APs with which a STA is associated before and after roaming must work on the same channel
D. During roaming, the STA sends a Reassociation Request frame containing home AP information to the foreign AP
View answer
Correct Answer: BC
Question #28
exist WLAN middle ACK What type of frame() does the frame belong to?
A. Management frame
B. Control frame
C. Data Frame
D. Empty data frame
View answer
Correct Answer: B
Question #29
A point-to-point wireless bridge can be used to connect two networks that are located at different locations. In a wireless backbone connection, the Root AP and the Leaf AP should be set to different channels.
A. rue
B. alse
View answer
Correct Answer: B
Question #30
When did the initial application of the wireless network begin?
A. During a major war
B. During the Second World War
C. Late 20th century
D. After 2000
View answer
Correct Answer: B
Question #31
ETSI Which country or region is the standards organization ()?
A. China
B. America
C. Japan
D. Europe
View answer
Correct Answer: B
Question #32
What is the wireless client's active scanning to get the surrounding wireless network information by sending frames?
A. Beacon frame
B. Probe Request frame
C. Authentication Request frame
D. Association Request frame
View answer
Correct Answer: B
Question #33
In the 802.11 frame, what type of frame does the STA's association request and authentication request belong to?
A. ontrol frame
B. anagement frame
C. ata frame
D. ata frame, control frame, management frame have this function
View answer
Correct Answer: B
Question #34
The parameter used in the 802.11 frame to check the integrity of the received frame is .
A. Frame Control
B. Duration
C. FCS
D. Sequence Control Bit
View answer
Correct Answer: C
Question #35
exist WDS In the networking, it is connected to AC connected AP What is usually called ()?
A. Leaf AP
B. Middle AP
C. Master AP
D. Root AP
View answer
Correct Answer: D
Question #36
Which of the following options is the frequency range supported by China 5GHz Frequency band()?
A. 5
B. 5
C. 5
D. 5
View answer
Correct Answer: D
Question #37
2.4 GHz What is the distance between the center frequencies of the channels in the frequency band()?
A. 0 MHz
B. 2 MHz
C. MHz
D. 0 MHz
View answer
Correct Answer: C
Question #38
Which of the following protocols support 2.4GHz Frequency band()? (Select 3 Answers)
A. 802
B. 802
C. 802
D. 802
View answer
Correct Answer: BCD
Question #39
exist WDS In the networking, it is connected to AC connected AP What is usually called ()?
A. Leaf AP
B. Middle AP
C. Master AP
D. Root AP
View answer
Correct Answer: D
Question #40
A WLAN that deploys Wi-Fi 6 products delivers a higher speed than that with Wi-Fi 5 productsdeployed.
A. True
B. False
View answer
Correct Answer: A
Question #41
exist WDS In the networking, it is connected to AC connected AP What is usually called ()?
A. Leaf AP
B. Middle AP
C. Master AP
D. Root AP
View answer
Correct Answer: D
Question #42
Which of the following agreements are IEEE customized 802.11 standard() ? (Select 3 Answers)
A. 802
B. 802
C. 802
D. 802
View answer
Correct Answer: ABD
Question #43
single AP What is the area covered ()?
A. BSA
B. ESA
C. SSA
D. TSA
View answer
Correct Answer: A
Question #44
The CAPWAP protocol is a WLAN standard proposed by the IEEE standards organization in April 2009 for communication between AC and thin APs.
A. True
B. False
View answer
Correct Answer: B
Question #45
What is the Chinese name of SSID?
A. Basic service set
B. Basic service area
C. Extended service set
D. Service set identifier
View answer
Correct Answer: D
Question #46
CAPWAP Which of the following standards organization proposed the agreement ()?
A. FCC
B. IETF
C. CCC
D. ETSI
View answer
Correct Answer: B
Question #47
The following transmission rate can reach 54Mbps What are the wireless LAN standards and above ()? (Select 3 Answers)
A. 802
B. 802
C. 802
D. 802
View answer
Correct Answer: ACD
Question #48
What is the US non-overlapping channel in the 2.4 GHz band?
A. 2 , 7, 12
B. 3, 8, 13
C. 1, 6, 11
D. 3, 7, 13
View answer
Correct Answer: C
Question #49
What are the modulation methods (Select 3 Answers) depending on the signal parameters being controlled?
A. amplitude modulation
B. frequency modulation
C. phase modulation
D. modulation
View answer
Correct Answer: ABC
Question #50
Which of the following AP modes does not belong to the WDS network?
A. Root AP
B. Middle AP
C. Bridge AP
D. Leaf AP
View answer
Correct Answer: C
Question #51
802.11a What kind of technology is used to implement the agreement?
A. FHSS
B. DSSS
C. OFDM
D. MIMO
View answer
Correct Answer: C
Question #52
Wireless client passive scanning is obtained by receiving what frames to get around the wireless network information?
A. Beacon frame
B. Probe Request frame
C. Authentication frame
D. Association Request frame
View answer
Correct Answer: A
Question #53
What is the wireless client's active scanning to get the surrounding wireless network information by sending frames?
A. Beacon frame
B. Probe Request frame
C. Authentication Request frame
D. Association Request frame
View answer
Correct Answer: B
Question #54
What frame does the wireless client actively scan to obtain the surrounding wireless network information ()?
A. Beacon frame
B. Probe Request frame
C. Authentication Request frame
D. Association Request frame
View answer
Correct Answer: B
Question #55
If a wireless client wants to connect to a WLAN through an AP, what does it connect to over the wireless network?
A. SSID
B. IBSS
C. BSID
D. BSA
View answer
Correct Answer: A
Question #56
Which of the following standards are WiFi Developed by the alliance ()? (Select 2 Answers)
A. 802
B. WPA
C. WPA2
D. 802
View answer
Correct Answer: BC
Question #57
Which of the following is IEEE A wireless local area network standard originally formulated ()?
A. IEEE 802
B. IEEE 802
C. IEEE 802
D. IEEE 802
View answer
Correct Answer: A
Question #58
The following description of TKIP encryption is wrong ().
A. The length of IV used in TKIP encryption is 24 bits
B. TKIP encryption uses the same encryption algorithm as WEP encryption
C. The motivation for developing TKIP encryption is to upgrade the security of the old WEP hardware
D. TKIP encryption adds the mechanism of Key generation, management and transmission
View answer
Correct Answer: A
Question #59
WLAN planning has requirements on signal field strength in coverage areas. For example, the signal field strength in key areas ranges from -40 dBm to -75 dBm, and that in common areas exceeds -85 dBm.
A. rue
B. alse
View answer
Correct Answer: B
Question #60
There are four wireless STAs. Which workstations occupy the channel preferentially according to the following backoff time parameters?
A. 5
B. 7
C. 4
D. 6
View answer
Correct Answer: C
Question #61
The following service models can provide end-to-end QoS services, but the scalability is not good.
A. iffServ model
B. ntServ model
C. est Effort model
D. IFO model
View answer
Correct Answer: B
Question #62
There are four wireless STAs. Which workstations occupy the channel preferentially according to the following backoff time parameters?
A. 5
B. 7
C. 4
D. 6
View answer
Correct Answer: C
Question #63
An antenna converts pilot waves on transmission lines into electromagnetic waves propagated in unbounded media (free space in most cases), or vice versa.
A. rue
B. alse
View answer
Correct Answer: B
Question #64
Unlike the 802.11a/b/g standard, the 802.11n protocol is a dual-band mode of operation (supporting two operating bands of 2.4 GHz and 5 GHz).
A. True
B. False
View answer
Correct Answer: A
Question #65
Which modulation method does the following picture belong to?
A. amplitude modulation
B. frequency modulation
C. phase modulation
D. modulation
View answer
Correct Answer: B
Question #66
exist WDS One in the network Root AP Can connect multiple Leaf AP , But a Leaf AP Only one can be connected Root AP .
A. True
B. False
View answer
Correct Answer: A
Question #67
Huawei's AP products can only support one SSID.
A. True
B. False
View answer
Correct Answer: B
Question #68
Wireless client passive scanning is obtained by receiving what frames to get around the wireless network information?
A. Beacon frame
B. Probe Request frame
C. Authentication frame
D. Association Request frame
View answer
Correct Answer: A
Question #69
What is the working frequency band used in the original 802.11 protocol?
A. 2
B. 900 MHz
C. 2
D. 5 GHz
View answer
Correct Answer: A
Question #70
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
A. True
B. False
View answer
Correct Answer: B
Question #71
The following statement about SSID is wrong.
A. here is no limit to the number of SSIDs that can be configured on an AP
B. ultiple different SSIDs can be released on one AP
C. he same SSID can be released on multiple APs
D. he same SSID signal can be released on two sets of antennas of one AP
View answer
Correct Answer: A
Question #72
exist WDS In the networking, it is connected to AC connected AP What is usually called ()?
A. Leaf AP
B. Middle AP
C. Master AP
D. Root AP
View answer
Correct Answer: D
Question #73
Which of the following standards organizations is implementing WLAN technology interoperability for WLAN device authentication?
A. WiFi Alliance
B. IEEE
C. IETF
D. FCC
View answer
Correct Answer: A
Question #74
ETSI Which country or region is the standards organization ()?
A. China
B. America
C. Japan
D. Europe
View answer
Correct Answer: B
Question #75
exist WDS One in the network Root AP Can connect multiple Leaf AP , But a Leaf AP Only one can be connected Root AP .
A. True
B. False
View answer
Correct Answer: A

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