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Huawei H12-311_V3.0 Exam is a comprehensive exam that requires candidates to have a deep understanding of WLAN technologies and Huawei products and solutions. H12-311_V3.0 exam consists of 60 multiple-choice questions and has a duration of 90 minutes. To pass the exam, candidates must score at least 60% of the total marks. Overall, the Huawei H12-311_V3.0 Exam is an excellent opportunity for IT professionals to validate their skills and knowledge in the field of WLAN technologies and enhance their career prospects.
NEW QUESTION # 24
Which of the following options is 802.11g The maximum rate supported by the protocol ()?
- A. 11Mbps
- B. 108Mbps
- C. 22Mbps
- D. 54Mbps
Answer: D
NEW QUESTION # 25
Int-Serv The model provides users with end-to-end absolute
- A. Not conducive to traffic monitoring
- B. Scalability is not good
- C. Limited bandwidth reservation
- D. Low forwarding efficiency
Answer: B
Explanation:
QoS Guarantee, but the reason for not successful large-scale commercial use is () .
NEW QUESTION # 26
For the lobe width, which of the following descriptions is correct is (). (Select 3 Answers)
- A. The pattern usually has two or more lobes
- B. Only within the coverage of the half power angle, the terminal can receive the signal
- C. The narrower the lobe width, the better the directivity, the longer the radiation distance, the stronger the anti-interference ability
- D. Within the range of the main lobe, the power density relative to the maximum radiation direction is reduced by half (3dB) Angle
Answer: A,C,D
NEW QUESTION # 27
802.11n Standard uses dual band (2.4GHz and 5GHz ), the theoretical transmission rate can reach up to 300Mbps, The actual test rate can reach arrive 100Mbps above.
- A. False
- B. True
Answer: A
NEW QUESTION # 28
In an 802.11 frame, what kind of control message () should be sent by the terminal to obtain access to the wireless medium?
- A. PS-Poll
- B. CTS
- C. RTS
- D. ACK
Answer: C
NEW QUESTION # 29
802.11 The parameter used in the frame to check the integrity of the received frame is ()
- A. Frame Control
- B. Sequence control bit
- C. FCS
- D. Duration
Answer: C
NEW QUESTION # 30
WLAN AP It can be powered by ().
(Select 3 Answers)
- A. POE switch
- B. POE switcher
- C. RF cable
- D. Independent power adapter
Answer: A,B,D
NEW QUESTION # 31
Regarding the telnet management of AC6605, the following statement is wrong ().
- A. telnet can be authenticated based on user name and password, and the transmission is encrypted, so it is quite safe
- B. telnet is a way to remotely manage AC
- C. telnet service can be configured separately on the wired side and wireless side of AC
- D. The telnet service is turned off by default on the AC
Answer: A
NEW QUESTION # 32
Among the following encryption methods, the most secure is ()
- A. Plaintext encryption
- B. WEP encryption
- C. TKIP encryption
- D. CCMP encryption
Answer: D
NEW QUESTION # 33
802.11b is a protocol based on Orthogonal Frequency Division Multiplexing (OFDM for short) technology
- A. False
- B. True
Answer: A
NEW QUESTION # 34
Among the following options, the common WLAN The source of interference is ().
(Select 3 Answers)
- A. remote control
- B. Bluetooth transmission equipment
- C. Micro-wave oven
- D. cordless phone
Answer: B,C,D
NEW QUESTION # 35
Huawei Wireless Controller AC6605 Supports user access security management through security templates, and supports WAPI Four security strategies.
- A. False
- B. True
Answer: B
Explanation:
WEP ,WPA/WPA2 ,
NEW QUESTION # 36
If one 802.11n of AP support 2*2 of MIMO Technology, then this AP What is the theoretical rate of ()?
- A. 150 Mbps
- B. 300 Mbps
- C. 600 Mbps
- D. 450 Mbps
Answer: B
NEW QUESTION # 37
exist WDS In the deployment, what kinds of bridge networking modes are included ()? (Select 3 Answers)
- A. Multipoint to multipoint
- B. Point-to-point method
- C. Relay bridging method
- D. Point-to-multipoint
Answer: B,C,D
NEW QUESTION # 38
IEEE 802.11 The standard used to define roaming is ().
- A. IEEE 802.11h
- B. IEEE 802.11c
- C. IEEE 802.11r
- D. IEEE 802.11j
Answer: C
NEW QUESTION # 39
ETSI Which country or region is the standards organization ()?
- A. America
- B. China
- C. Japan
- D. Europe
Answer: A
NEW QUESTION # 40
For shared key authentication, the error described below is ().
- A. For skinny AP, The shared key is preset in AC middle
- B. The disadvantages of shared keys are poor scalability and not very secure
- C. After adopting shared key authentication, you must use WEP Encryption
- D. The shared secret requires users and AP Use the same shared secret
Answer: A
NEW QUESTION # 41
Which of the following descriptions of business VLAN is correct is ().
(Select 3 Answers)
- A. PVID VLAN under the WLAN ESS interface
- B. If the data tunnel is used for forwarding, user data will not be transmitted through the business VLAN business
- C. Mainly responsible for transmitting data when WLAN users go online
- D. Service VLAN under the service set template
Answer: A,C,D
NEW QUESTION # 42
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. 11 ,6,1
- B. 6 ,11,1
- C. 1 ,6,11
- D. 2 ,7,12
Answer: B
NEW QUESTION # 43
AP The size of the coverage area is controlled by ().
(Select 2 Answers)
- A. adjust AP Power supply
- B. adjust AP Access bandwidth
- C. adjust AP Antenna angle
- D. adjust AP Transmit power
Answer: C,D
NEW QUESTION # 44
MIMO The antenna configuration is usually expressed as " M*N ",in M and N What does each mean ()?
(Select 2 Answers)
- A. M Indicates the number of receiving antennas
- B. N Indicates the number of transmission antennas
- C. M Indicates the number of transmission antennas
- D. N Indicates the number of receiving antennas
Answer: C,D
NEW QUESTION # 45
The omnidirectional antenna appears on the horizontal pattern as ()Spend.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION # 46
The following statement is correct ().
(Select 3 Answers)
- A. 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
- B. WPA2 uses 802.1X authentication
- C. WPA2 PSK authentication requires the user to enter a user name and password to connect
- D. WAPI is China's national standard system for wireless LAN
Answer: A,B,D
NEW QUESTION # 47
Regarding the functional characteristics of AP6010SN, which of the following statements is correct is ().
(Select 2 Answers)
- A. AP6010SN supports WDS function, which can realize point-to-point and point-to-multipoint wireless bridging
- B. AP6010SN is an indoor distributed AP, which only supports working in the 2.4GHz frequency band
- C. AP6010SN not only has a built-in antenna, but also an external antenna, which is very convenient
- D. AP6010SN has an Ethernet interface and supports 802.3af PoE power supply standard
Answer: A,D
NEW QUESTION # 48
The following command can configure the port of the Huawei switch as hybrid model()?
- A. swichport hybrid
- B. port mode hybrid
- C. port link-type hybrid
- D. hybrid enable
Answer: C
NEW QUESTION # 49
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