2023 Provide Updated Huawei H12-311_V3.0 Dumps as Practice Test and PDF
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NEW QUESTION # 171
For outdoor long-distance point-to-point backhaul, the antenna of () should be selected.
- A. High gain, small lobe width
- B. Omnidirectional
- C. Low gain, large lobe width
- D. High gain, large lobe width
Answer: A
NEW QUESTION # 172
AP There are several types of domain deployment (). (Select 3 Answers)
- A. Discrete deployment
- B. Ordinary deployment
- C. Densely deployed
- D. Independent deployment
Answer: A,B,C
NEW QUESTION # 173
for CAPWAP Agreement, the error described below is ().
- A. Depend on CAPWAP Working group development CAPWAP
- B. The formulation of the agreement has absorbed the useful features of other agreements
- C. thin AP Transmission protocol with wireless client
- D. AC And thin AP Transfer protocol
Answer: C
NEW QUESTION # 174
After one data frame is sent and confirmed, what is the time interval to wait before sending the next data frame ()?
- A. DIFS
- B. PIFS
- C. IFS
- D. SIFS
Answer: A
NEW QUESTION # 175
What are the prerequisites for users to achieve three-tier roaming ()?
(Select 3 Answers)
- A. The two APs that the user roams over must have the same SSID
- B. The SSID released by the two APs of the user roaming handover must have the same authentication method
- C. User roaming requires two AP signals to cover overlapping areas
- D. The two APs for user roaming switching must have the same VLAN
Answer: A,B,C
NEW QUESTION # 176
802.11 In the frame, STA Which type of frame () does the association request and authentication request belong to?
- A. Data frame, control frame, management frame have this function
- B. Control frame
- C. Data Frame
- D. Management frame
Answer: D
NEW QUESTION # 177
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
Answer: B
NEW QUESTION # 178
China in 2.4GHz How many channels does the frequency band support ()?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 179
Which of the following functions does the Huawei WLAN planning tool have ()?
(Select 3 Answers)
- A. Support the division of general coverage areas and key coverage areas
- B. Support automatic identification of obstacles
- C. Support exporting standardized WLAN planning reports
- D. Support automatic deployment of AP locations
Answer: A,C,D
NEW QUESTION # 180
The two commonly used units to describe antenna gain are dBi and dBd , The conversion relationship between them is: dBi=dBd+2.14 .
- A. False
- B. True
Answer: B
NEW QUESTION # 181
Which of the following commands connect Huawei to the switch
- A. interface GigabitEthernet 0/0/1
port link-type trunk
trunk allow-pass VLAN 100 - B. interface
GigabitEthernet 0/0/1 port link-type
access
port allow-pass VLAN 100 - C. interface GigabitEthernet 0/0/1
port link-type access
GE 0/0/1 Port added to VLAN100 middle()?
port default VLAN 100 - D. interface GigabitEthernet 0/0/1
port link-type trunk
VLAN 100
Answer: C
NEW QUESTION # 182
CCMP The algorithm used for encryption is ().
- A. AES
- B. SMS4
- C. RC4
- D. Michael
Answer: A
NEW QUESTION # 183
802.11 The parameter used in the frame to check the integrity of the received frame is ()
- A. Sequence control bit
- B. FCS
- C. Frame Control
- D. Duration
Answer: B
NEW QUESTION # 184
Which of the following descriptions of business VLAN is correct is ().
(Select 3 Answers)
- A. PVID VLAN under the WLAN ESS interface
- B. Service VLAN under the service set template
- C. If the data tunnel is used for forwarding, user data will not be transmitted through the business VLAN business
- D. Mainly responsible for transmitting data when WLAN users go online
Answer: A,B,D
NEW QUESTION # 185
for AC+ thin AP The network architecture, the following description is wrong ().
- 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
Answer: D
NEW QUESTION # 186
The basic service set is 802.11 The basic components of a network are composed of a group of workstations that communicate with each other.
- A. False
- B. True
Answer: B
NEW QUESTION # 187
Defined WLAN Medium service quality 802.11 The agreement is ().
- A. 802.11f
- B. 802.11e
- C. 802.11n
- D. 802.11i
Answer: B
NEW QUESTION # 188
For the lobe width, which of the following descriptions is correct is (). (Select 3 Answers)
- A. Only within the coverage of the half power angle, the terminal can receive the signal
- B. Within the range of the main lobe, the power density relative to the maximum radiation direction is reduced by half (3dB) Angle
- C. The narrower the lobe width, the better the directivity, the longer the radiation distance, the stronger the anti-interference ability
- D. The pattern usually has two or more lobes
Answer: B,C,D
NEW QUESTION # 189
802.11b is a protocol based on Orthogonal Frequency Division Multiplexing (OFDM for short) technology
- A. True
- B. False
Answer: B
NEW QUESTION # 190
WLAN middle,AP It has been working in a half-duplex state.
- A. False
- B. True
Answer: B
NEW QUESTION # 191
There are four wireless STA, According to the following backoff time parameters, which workstation has the priority to occupy the channel?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 192
For protection WLAN Security, which of the following measures can be taken? (Select 3 Answers)
- A. Control flow
- B. Authentication
- C. System protection
- D. encryption
Answer: B,C,D
NEW QUESTION # 193
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