Vivid H12-311 Vce 2021

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NEW QUESTION 1
After a wireless user connects to a wireless signal point, they cannot obtain an IP address. What are the possible reasons (Select 2 Answers)?

  • A. The DHCP server is not configured in the VLAN where the user is locate
  • B. The dhcp-enable command is not configured on the
  • C. wlan-ess virtual interface.
  • D. The user-specified authentication password is incorrect.
  • E. The MAC address of the user device has been added to the blacklis

Answer: AB

NEW QUESTION 2
Antennas are classified by direction and can be classified into antennas and antennas (Select 2 Answers).

  • A. plate shape
  • B. parabologd
  • C. omnidirectional
  • D. orientation

Answer: D

NEW QUESTION 3
Which of the following 2.4GHz bands are Selective Answers (ABD) (Select 3 Answers).

  • A. 6 and 11
  • B. 3 and 8
  • C. 4 and 8
  • D. 4 and 10

Answer: ABD

NEW QUESTION 4
A company wants to deploy WLAN. The company has purchased a number of wireless APs that support 802.11n. When the WLAN is deployed, only 802.11n wireless clients can connect to the company's WLAN.

  • A. True
  • B. False

Answer: B

NEW QUESTION 5
What are the rates that 802.11a can support?

  • A. 6,12,24,54 Mbps
  • B. 6,9,12,18,24,36,48,54 Mbps
  • C. 6,12,18,24,36,48,54 Mbps
  • D. 6,9,12,18,24,30,36,48,54 Mbps

Answer: B

NEW QUESTION 6
The following description of the management VLAN is correct.

  • A. Mainly responsible for transmitting data when WLAN users access the Internet
  • B. PVID VLAN under WLAN ESS interface
  • C. Service VLAN under the service set template
  • D. Responsible for establishing the CAPWAP tunnel between the AC and the AP.

Answer: D

NEW QUESTION 7
Which channels in the 802.11b protocol do not overlap each other (Select 3 Answers)?

  • A. 1
  • B. 3
  • C. 6
  • D. 11

Answer: ACD

NEW QUESTION 8
When the AC is a side-by-side networking, if the data is directly forwarded, the data stream () AC; if the data is in tunnel forwarding mode, the data Stream AC.

  • A. No pass, pass
  • B. No pass, no pass
  • C. After passing through
  • D. After passing through not

Answer: A

NEW QUESTION 9
Telnet is one of the ways to remotely manage APs. You can configure telnet authentication based on username and password.

  • A. True
  • B. False

Answer: A

NEW QUESTION 10
In the process of discovering the AC by the thin AP, the first step is to check whether there is a list of pre-configured static AC IP addresses.

  • A. True
  • B. False

Answer: A

NEW QUESTION 11
Because 802.11a supports the same maximum rate as 802.11g supports, the 802.11a protocol is backward compatible with the 802.11g protocol.

  • A. True
  • B. False

Answer: B

NEW QUESTION 12
Configure the security profile of the wireless network as WEP. You need to configure the security profile on the AC6605 as follows.

  • A. security-policy wepWep authentication-method open Wep key wep-40 hex 0 1234567890Wep default-key 0
  • B. security-policy wep Policy wep share-keyWep key wep-40 hex 0 1234567890Wep default-key 0
  • C. authentication policy wpaWpa authentication-method share-key Wpa key wpa-40 hex 0 1234567890Wpa default-key 0
  • D. authentication policy wpa2Wpa2 authentication-method share-key Wpa2 key wpa2-40 hex 0 1234567890Wpa2 default-key 0

Answer: B

NEW QUESTION 13
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. True
  • B. False

Answer: B

NEW QUESTION 14
When deploying APs on multiple floors of a building, the factor to be aware of is (Select 3 Answers).

  • A. Material of the wall
  • B. Other interference signals
  • C. In order not to affect the appearance, the AP should be hidden in the ceiling
  • D. Unified planning channel

Answer: ABD

NEW QUESTION 15
What are the general methods for solving co-channel interference (ABD) (Select 3 Answers).

  • A. Adjust AP transmit power and adjust antenna feed
  • B. Reasonable frequency reuse to ensure that the same channel does not appear in the same or adjacent coverage area
  • C. Multi-directional coverage using omnidirectional antennas
  • D. Natural isolation using obstacles

Answer: ABD

NEW QUESTION 16
What is the network consisting of a wireless AP and associated wireless clients?

  • A. IBSS
  • B. BSS
  • C. ESS
  • D. NSS

Answer: B

NEW QUESTION 17
What type of frame does the ACK frame belong to in the WLAN?

  • A. Management frame
  • B. Control frame
  • C. Data frame
  • D. Empty data frame

Answer: B

NEW QUESTION 18
The following is an incorrect way to refer to AP access control (Select 2 Answers).

  • A. By default, the access control mode of the AP to the AC is not authenticated.
  • B. By configuring the AP in the offline state, authentication is required to automatically access the AP.
  • C. The configuration whitelist can be authenticated based on the MAC or authenticated based on the SN.
  • D. If the AP access control adopts MAC authentication, the AP outside the MAC authentication list can also be online after being manually confirmed.

Answer: AB

NEW QUESTION 19
What are the mandatory standards for wireless LAN security in China?

  • A. WiFi
  • B. WAPI
  • C. WLAN
  • D. WiMAX

Answer: B

NEW QUESTION 20
In the 802.1X protocol, you must have the ability to authenticate and authorize users (Select 3 Answers).

  • A. eSight server
  • B. client
  • C. certifier
  • D. authentication server

Answer: B.CD

NEW QUESTION 21
What are the main contents of the CAPWAP protocol (Select 3 Answers)?

  • A. AP automatic discovery of AC and state machine operation and maintenance of AP&AC
  • B. The AC manages the AP and delivers the service configuration.
  • C. STA data encapsulates CAPWAP tunnel for forwarding
  • D. Define the transfer rate of the Mac layer and the physical layer

Answer: ABC

NEW QUESTION 22
Each AC device needs to specify the source IP address of the AC to establish a CAPWAP tunnel with the AP. One AC can specify up to two WLAN source IP addresses.

  • A. True
  • B. False

Answer: B

NEW QUESTION 23
The following description of the splitter and coupler is correct .

  • A. Power splitter and coupler are equal power allocation
  • B. Power splitter is equal power distribution, coupler is unequal power distribution
  • C. Power splitter is unequal power distribution, coupler is equal power distribution
  • D. Power splitter and coupler are unequal power distribution

Answer: B

NEW QUESTION 24
Authentication is not related to the authentication encryption used by the WLAN itself when it is used by the WLAN.

  • A. True
  • B. False

Answer: B

NEW QUESTION 25
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

Answer: C

NEW QUESTION 26
To create a user for Huawei's AC, first use the aaa command to enter the view.

  • A. True
  • B. False

Answer: A

NEW QUESTION 27
If an AP has been added offline, the AP can go online directly.

  • A. True
  • B. False

Answer: A

NEW QUESTION 28
The MEth0/0/1 interface on the AC6605 is used for inband network management. The default address is 192.168.1.1/24 and cannot be modified.

  • A. True
  • B. False

Answer: B

NEW QUESTION 29
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