Huawei H12-311_V3 0-ENU Exam Questions

Text Material Preview

H12-311_V3.0-ENU
Exam Name: HCIA-WLAN V3.0
Full version: 478 Q&As
Full version of H12-311_V3.0-ENU Dumps
Share some H12-311_V3.0-ENU exam dumps
below.
1. What types of routing protocols does the HWMP protocol support? (Multiple choice)
A. pro-active
B. OSPF
C. on-demand
 1 / 20
https://www.certqueen.com/H12-311_V3.0-ENU.html
D. IGRP
Answer: AC
2. Which of the following statements are correct? (Multiple choice)
A. WDS can transmit the data of the wired network through the relay structure of the wireless
network, so that the network data can be transmitted to another wireless network environment
or another wired network.
B. The wireless network bridging function usually refers to one-to-one, but the WDS architecture
can do one-to-many.
C. WDS can allow wireless APs to bridge (relay) wirelessly, but the bridged wireless APs cannot
provide coverage at the same time.
D. Because a virtual network line is formed through a wireless network, WDS is also called a
wireless network bridging function.
Answer: ABD
3. If an 802.11n AP supports 2*2 MIMO technology, what is the theoretical rate of this AP?
A. 150 Mbps
B. 300 Mbps
C. 450 Mbps
D. 600 Mbps
Answer: B
4. What are the main contents of the CAPWAP protocol? (Multiple choice)
A. Automatic discovery of AC by AP and operation and maintenance of AP&AC state machine
B. AC manages APs and distributes service configurations
C. STA data is encapsulated in CAPWAP tunnel for forwarding
D. Defines the transmission rate of the Mac layer and the physical layer
Answer: ABC
5. In order to solve the tunnel aggregation problem of WLAN roaming, which of the following
statements is correct for the processing principles of downlink broadcast and multicast packets?
(Multiple choice)
A. At the HAC, discard unknown unicast packets at the entrance of the roaming tunnel
B. At the HAC, discard the multicast or broadcast packets of ARP, ND, DHCP, and mDNS to
avoid loops
C. The transparently transmitted broadcast/multicast packets reach the FAC, and the FAC
 2 / 20
converts them into unicast packets according to the source of the tunnel
D. FAP discards unknown unicast packets, and then forwards other packets to roaming STAs
Answer: AC
6. Which of the following authentication methods can the user information synchronized by the
Agile Controller be used for? (Multiple choice)
A. Portal authentication
B. 802.1x authentication
C. Agile Controller login authentication
D. MAC bypass authentication
Answer: AB
7. Regarding the description of fast roaming, which of the following statements is correct?
(Multiple choice)
A. There is no re-authentication process after fast roaming, only need to complete the four-step
key exchange
B. AP needs to support fast roaming to achieve fast roaming, and for terminals, any terminal is
enough
C. There is no re-authentication process after fast roaming, and there is no need for four-step
key key interaction
D. When the user uses a non-A2+dt1x encryption authentication method, the roaming status of
the user is non-fast roaming
Answer: AD
8. In the 802.11 frame, which message is used for the terminal to receive data packets in power
saving mode?
A. RTS
B. CTS
C. ACK
D.PS-Poll
Answer: B
9. In AP-based load balancing, which description is correct about the dynamic load balancing?
(Multiple choice)
A. Dynamic load balancing solves the problem of limited number of members in static load
balancing
 3 / 20
B. Number of members for dynamic load balancing and members for static load balancing
C. Each member in the balancing group of dynamic load balancing is automatically configured
or can be a different frequency band
D. Each member in the balancing group of dynamic load balancing can be automatically
configured but must be in the same frequency band
Answer: AC
10. Which of the following description of PSK authentication is wrong?
A. PSK authentication needs to configure the same pre-shared key on the wireless client and
device
B. Both WPA and WPA2 support PSK authentication
C. The PSK authentication process is similar to the shared key authentication process, so the
security is the same
D. PSK authentication is to verify the legitimacy of the STA side Key through 4-way handshake
Key negotiation
Answer: A
11. The wireless network card that only supports TKIP can be upgraded through the driver to
support AES encryption.
A. True
B. False
Answer: B
12. A large enterprise deploys an L network, and part of the SS1D user data forwarding mode is
configured with collision forwarding. In the following description of the collision forwarding
method, which options are correct? (Multiple choice)
A. Business data forwarding basically does not consume WC performance, and it is more
convenient to expand the number of P
B. The data message is encrypted when it is forwarded, so it is not easy to be stolen by the
middleman
C. The service data is directly forwarded by the AP to the service gateway, and does not need
to be migrated back to the WAC, and the forwarding efficiency is high
D. It is convenient for centralized policy control of wireless traffic, and has obvious advantages
in user policy control and other aspects
E. YAC must communicate with the service VLAN layer 2
Answer: DE
 4 / 20
13. Which of the following commands is to add GE 0/0/1 port of Huawei access switch to
VLAN100?
A. interface GigabitEthernet 0/0/1 port link-type access
Port default 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 trunk
Trunk allow-pass VLAN 100
D. interface GigabitEthernet 0/0/1 port link-type trunk
VLAN 100
Answer: A
14. Which of the following is not the main purpose of roaming?
A. Avoid packet loss or even service interruption caused by long authentication time during
roaming
B. Ensure that user authorization information remains unchanged
C. Ensure that the user's IP address remains unchanged
D. Ensure that the user's network speed remains unchanged
Answer: D
15. Regarding AP6610DN, which of the following statement is wrong?
A. AP6610DN is an enhanced outdoor AP
B. AP6610DN is a dual-band AP, in which the 5GHz band can be used for both wireless
bridging and user access
C. AP6610 has only one Ethernet interface with a maximum bandwidth of 1000M
D. AP66010DN supports Ethernet interface and optical fiber interface at the same time
Answer: C
16. Which of the following standards are developed by the WiFi Alliance? (Multiple choice)
A. 802.11a/b/g/n
B.WPA
C. WPA2
D. 802.11i
Answer: BC
 5 / 20
17. The architecture of the wireless local area network is mainly divided into the thin AP
architecture based on the controller and the traditional independent fat AP architecture.
A. True
B. False
Answer: A
18. In WDS deployment, which bridge networking modes include? (Multiple choice)
A. Peer-to-peer
B. Point-to-Multipoint
C. Relay bridge mode
D. Multipoint to multipoint mode
Answer: ABC
19. Which of the following materials does the WLAN signal have less penetration loss? (Multiple
choice)
A. Gypsum board
B. Glass window (colorless)
C. Concrete walls
D. brick wall
Answer: AB
20. When testing the attenuation of obstacles in the WLAN site survey, the signal source needs
to be placed in a suitable position. There is no occlusion between it and the obstacle to be
tested. And keep a certain distance. Because the field strength fluctuates greatly near the signal
source, the test will be inaccurate.
A. True
B. False
Answer: A
21. In the large-scale WLAN three-layer network, which of the following statements about the
description of the DHCP server is incorrect? (Multiple choice)
A. In a large-scale WLAN network, the AP can obtain the IP address of the AC from the DHCP
server through the option 60 parameterB. In a large-scale WLAN network, the AP can obtain the IP address of the AC from the DHCP
server through the option 43 parameter
C. In a large WLAN network, it is recommended to deploy an independent DHCP server
 6 / 20
D. In a large-scale WLAN network, it is generally recommended to use the AC as the DHCP
server
Answer: AD
22. Among the following Huawei APs, which AP supports SFP optical fiber interface?
A. AP6010DN
B. AP6310SN
C. AP6510DN
D. AP6610DN
Answer: D
23. Which of the following descriptions about the Portal authentication process is correct?
(Multiple choice)
A. When using the Portal authentication protocol, if there is a NAT scenario between the
authentication server and the access device, user authentication will fail due to timeout
B. After receiving the Portal authentication request (REQ_AUTH), the Portal server will send a
RADIUS authentication request (ACCESS-REQUEST) to the RADIUS server
C. There are two ways to trigger Portal authentication, one is active authentication and the other
is redirection authentication
D. When using the HTTP/HTTPS authentication protocol, if there is a NAT scenario between the
authentication server and the access device, user authentication will fail due to timeout
Answer: ABC
24. When the license is not loaded, the number of APs supported by AC6605 by default is?
A.4
B.0
C.8
D.10
Answer: A
25. As shown in the figure, regarding the N+1 backup network, which of the following
descriptions is correct? (Multiple choice)
 7 / 20
A. The standby AC3 must be in the same Layer 2 network as the active AC1 and active AC2
B. On the standby AC3, all APs under the active AC1 and active AC2 must be configured to
ensure that the AP can obtain the correct configuration after AC switching
C. Configure the corresponding priority of the AP on each active and standby AC, and the AP
can select the corresponding active AC according to the priority carried by the AC
D. You can configure the corresponding MAC whitelist on the main AC to ensure that the AP
can go online on the corresponding AC, so as to assist the AP to choose the correct main AC
Answer: BCD
26. Compared with 802.1X authentication, what are the advantages of Porta1 authentication?
(Multiple choice)
A. Portal can be used in dumb terminal access scenarios
B. Portal authentication is more suitable for temporary visitors to the network
C. Portal authentication does not require the installation of client software
D. Portal authentication is compatible with MAC bypass authentication
Answer: ABCD
27. () command can be used to view the AP group or AP personality template information of the
specified MESH template.
Answer: display mesh-profile.
28. In Portal authentication, what parameters must be configured on AC6005? (Multiple choice)
A. Portal server IP address
 8 / 20
B. Portal page URL template
C. shared-key
D. Portal protocol version
E. The port number on which the device listens to Portal protocol packets
Answer: ABC
29. In the 802.11 frame, what kind of control message should the terminal send to obtain
access to the wireless medium?
A. RTS
B. CTS
C. ACK
D.PS-Poll
Answer: A
30. In a dual-link backup network, what will the AP use to distinguish between the active AC and
the standby AC? (Multiple choice)
A. Priority
B. The IP address of the AC
C. AC load condition
D. The time when the AC responds to the AP
Answer: ABC
31. In the 802.11 frame, which address bit of the Address bit represents the address of the
frame receiving end?
A. Address 1
B. Address 2
C. Address 3
D. Address 4
Answer: A
32. The omnidirectional antenna is shown as () degrees on the horizontal direction diagram.
A. 90
B.180
C. 360
D. 0
Answer: C
 9 / 20
33. In the Portal authentication scenario, if the Portal server does not support the Portal
protocol, HTTP/HTTPS can be used as the authentication protocol. At this time, the client
directly transmits user information to the access device through HTTP/HTTPS requests.
Currently, two request methods () and () are supported.
Answer: POST | GET
34. What is the VLAN which used to establish a CAPWAP tunnel VLAN for AP and AC?
A. Management VLAN
B. Service VLAN
C. User VLAN
D. Authentication VLAN
Answer: A
35. What are the working frequency bands of WLAN? (Multiple choice)
A. 2 GHz
B. 5 GHz
C. 5.4 GHz
D. 2.4 GHz
Answer: BD
36. In the N+1 backup network shown in the figure, AC3 is configured with a global priority of 5,
AC1 and AC2 are configured with a global priority of 6, AC1 is configured with an API
personality priority of 3, and AC2 is configured with an AP3 personality priority of 3. When AC1,
AC2, and AC3 are all empty, which AC device will AP1, AP2, AP3, and AP4 connect to?
A. AP1 is connected to AC1, AP2 is connected to AC3, AP3 is connected to AC2, and AP4 is
 10 / 20
connected to AC3
B. AP1 is connected to AC3, AP2 is connected to AC3, AP3 is connected to AC3, and AP4 is
connected to AC1 or AC2
C. AP1 is connected to AC1, AP2 is connected to AC1 or AC2, AP3 is connected to AC2, and
AP4 is connected to AC1 or AC2
D. AP1 is connected to AC3, AP2 is connected to AC1 or AC2, AP3 is connected to AC3, and
AP4 is connected to AC3
Answer: A
37. In the outdoor WLAN deployment scenario, the channel design must consider the
interference of the radar channel.
A. True
B. False
Answer: A
38. The AC executes the load balancing process according to which of the following
information?
A. The AP periodically sends information about its associated STAs to the AC
B. STA periodically reports the identity of the currently associated AP
C. The AC regularly queries the number of STAs associated with the AP
D. The STA periodically searches for surrounding AP information and reports the AP identity
through the associated AP
Answer: B
39. Regarding the use scenarios and characteristics of various ACs, which of the following
descriptions is correct? (Multiple choice)
A. Standalone AC single boards such as ACU2 are suitable for large-scale networks, there will
be expansion requirements in the future, and scenarios where rack slot resources are tight
B. Independent box AC such as AC6605 is suitable for the unified construction of wired and
wireless networks, and the unified management of wired and wireless users
C. A native AC such as an X1E board is suitable for scenarios where wired and wireless users
are independently managed
D. With the board AC such as X1E single board, compared with independent AC such as
AC6605, it has higher forwarding performance, and can achieve device-level and link-level
redundant backup; make the WLAN network have better reliability
Answer: AD
 11 / 20
40. As shown in the figure, which of the following statements is correct about the dual-machine
hot backup solution? (Multiple choice)
A. Figure a is the main and backup mode
B. Figure b is the main and backup mode
C. Figure a shows the load sharing method
D. The picture in b shows the load sharing method
Answer: BC
41. Which of the following service model can provide end-to-end QoS service, but the scalability
is not good?
A. Best Effort model
B. IntServ Model
C. FIFO model
D. DiffServ model
Answer: B
42. If roaming is implemented between two APs, which of the following conditions must be met?
(Multiple choice)
A. Same security policy
B. Same SSID
C. The same data forwarding mode
D. The same service VLAN
Answer: ABC
43. The following is the configuration when configuring AC6005 to connect to the Portal server.
 12 / 20
What port does port 50200 refer to?
Web-auth-server huawei
Server-ip 10.254.1.100 Port 50200
Shared-key ciper huawei url-template huawei
A. The destination port number used when actively sending packets to the Portal server
B. Port number for processingPortal protocol packets on the device
C. The source port number used when actively sending packets to the Portal server
D. Port number for receiving Portal protocol packets on the device
Answer: A
44. In the load balancing mode, which statement about the hot standby processing method of
each server is correct? (Multiple choice)
A. The DHCP Server and the Relay on the device will not be adaptively linked, and the Server
will actively send a dhcp request protocol message to the device.
B. The DHCP Server and the Relay on the device can be adaptively linked, and the Server will
not actively send protocol packets to the device.
C. RADIUS/Portal Server does not need to configure the IP address of the peer device; and the
server will not actively send COA/DM or Portal logoff messages to the device
D. RADIUS/Portal Server needs to configure the IP address of the peer device, and the server
will actively send COA/DM or Portal logoff messages to the device
Answer: BD
45. Which of the following descriptions about thin AP is correct?
A. Thin AP is also called wireless router
B. Thin APs are gradually being replaced by fat APs due to lack of functions
C. Thin AP cannot be configured alone and must be used in conjunction with the wireless
controller
D. Thin AP can implement 802.1X authentication, encryption and other functions, and other
functions such as QoS and roaming are implemented on the wireless controller
Answer: C
46. If the PoE function is enabled on the switch, traditional devices cannot be connected to
these interfaces.
A. True
B. False
Answer: B
 13 / 20
47. What is the distance between the center frequencies of each channel in the 2.4 GHz band?
A. 20 MHz
B. 22 MHz
C. 5 MHz
D. 10 MHz
Answer: C
48. How many management nodes does the eSight standard version support at most?
A.60
B.2000
C. 5000
D. 20000
Answer: C
49. An engineer set the synchronization type of the Agile Controller to group synchronization;
but after synchronization, there is no information on the Controller. Check the AD directory
server and find that the directory server is normal, and the user information and user group
information are normal. What is the possible reason for this phenomenon? (Multiple choice)
A. The synchronization method of the Agile Controller is configured as automatic
synchronization
B. Agile Controller synchronization range configuration error
C. The data structure mapping configuration of the Agile Controller authentication source is
wrong
D. Agile Controller is not configured with any OU filter conditions
Answer: BC
50. In a large-scale wireless network deployment scenario, when the AC is configured as "three-
layer networking + bypass mode + direct forwarding", where should the wireless user's gateway
be located?
A. On a Layer 3 switch at the aggregation layer
B. On a one-arm router
C. On the AC
D. On the AP
Answer: A
 14 / 20
51. A 10-story building needs to cover WLAN signals, because considering the floor blocking,
the signal frequency of WLAN on the 5th and 6th floors can be set to 6 channels at the same
time.
A. True
B. False
Answer: B
52. There is a string of DN codes as follows: DN:CN=Jack, OU=Enterprise, OU=Huawei,
DC=AD, DC=Huawei, which of the following descriptions about this string of DN codes is
wrong? (Multiple choice)
A. The domain name of this directory server is Huawei
B. This directory server is not an AD server
C. This string of codes represents a path
D. Jack represents a user or user group
Answer: AB
53. Regarding the MPP in the Mesh network, which of the following descriptions is correct?
(Multiple choice)
A. Connect wireless Mesh network and other types of networks, and communicate with
MP/MAP nodes inside the Mesh network
B. The MPP node has the Portal function. Through the MPP node, the nodes inside the Mesh
can communicate with the external network
C. MPP nodes can also be called Mesh gateways
D. MPP nodes do not support redundancy
Answer: ABC
54. When building a wireless network, non-free space loss (transmission distance) is often
encountered. Which of the following types of loss include? (Multiple choice)
A. reflection
B. Diffraction
C. Scattering
D. Transmission
Answer: ABCD
55. Which of the following descriptions about load balancing between dual frequencies is
correct? (Multiple choice)
 15 / 20
A. When the load difference between 5G and 2.4G radios is within the balance threshold, the
AP will guide the terminal to associate with 5G first.
B. When the load on the 5G radio exceeds the balance threshold of 2.4G, the AP will guide the
terminal to associate with 2.4G first.
C. When the load on the 5G radio frequency exceeds the balance threshold of 2.4G, if the
terminal is associated with 5G, the AP will always refuse the terminal association until the
terminal is associated with 2.4G
D. If the load balancing difference threshold between dual-frequency is configured as 10, it
means that if and only when the number of terminals on the 5G radio exceeds 2.4G radio by
more than 10, the load between the dual-frequency is considered unbalanced
Answer: AB
56. If the networking mode of an enterprise wireless network is direct forwarding, then the thin
AP can convert 802.11 data packets into Ethernet packets, then perform CAPWAP
encapsulation on the packets, and transmit the data packets to AC through the CAPWAP
tunnel.
A. True
B. False
Answer: B
57. What is the working frequency band used by the original 802.11 protocol?
A. 2.4 GHz
B. 900MHz
C. 2.0 GHz
D. 5 GHz
Answer: A
58. Which of the following can be connected through AP and antenna?
A. Network cable
B. CATV coaxial cable
C. Power cord
D. 50ohm RF coaxial cable
Answer: D
59. Global tuning, the AC runs () and () algorithms based on neighbor relationship, interference,
and load information to generate a new transmit power and working channel for the AP, and
 16 / 20
then sends them to the AP for use. (Multiple choice)
A. EDCA
B. DCA
C. CAC
D.TPC
Answer: BD
60. How to deal with a large number of devices that do not match the version of AP and AC?
A. Upgrade the versions to match each other
B. Replace the AP device
C. Replace the switch
D. Check whether the POE power supply is normal
Answer: A
61. What is the command for Huawei AC6605 to switch between the wired side and the wireless
side?
A. Ctrl+B
B. Ctrl+X
C. Ctrl+Y
D. Ctrl+Z
Answer: C
62. In smart roaming, a terminal that supports 802.11k can actively collect surrounding neighbor
AP information and report it to the associated AP.
A. True
B. False
Answer: A
63. Regarding the Agile Controller access model, which of the following descriptions is correct?
(Multiple choice)
A. In the access model, the core is authorization conditions and authorization results
B. Currently only 802.1x and Portal authentication can support all conditions in the access
model
C. Authorization elements do not include IP address ranges
D. Authorization conditions include authorization elements
Answer: ABD
 17 / 20
64. To upgrade the AP through FTP, you need to ensure that the AP and the FTP server can
communicate with each other, and put the AP upgrade file in the FTP root directory.
A. True
B. False
Answer: A
65. A company wants to deploy WLAN. The company purchased a batch of wireless APs that
support 802.11n. After the WLAN is deployed, only wireless clients that support 802.11n can
connect to the company's WLAN.
A. True
B. False
Answer: B
66. The basic service set is the basic component of the 802.11 network, which is composed of a
group of workstations communicating with each other.
A. True
B. False
Answer: A
67. In order to protect WLAN security, which of the following measures can be taken? (Multiple
choice)
A. Authentication
B. Encryption
C. System Protection
D. Control flow
Answer:ABC
68. When deploying APs on multiple floors of a building, the factors that need to be paid
attention to are (). (Multiple choice)
A. The material of the wall
B. Other Interfering Signals
C. In order not to affect the appearance, the AP should be hidden in the ceiling
D. Unified channel planning
Answer: ABD
 18 / 20
69. Which of the following is not an AP binding template?
A. RF template
B. AP template
C. ESS template
D. Planning sheet template
Answer: D
70. A large enterprise deploys a WLAN network, and some of the SSIDs use the direct
forwarding method. Which of the following descriptions about the characteristics of the direct
forwarding method is correct? (Multiple choice)
A. Business data does not need to be migrated back to the AC, and there is no forwarding
bottleneck
B. It is convenient for centralized policy control of wireless traffic, and has obvious advantages
in user policy control, wireless roaming, etc.
C. Better security when data packets are forwarded
D. AC expansion is simple, just increase the number of independent ACs
Answer: AD
71. In Huawei eSight network management, the method of adding WLAN devices includes?
(Multiple choice)
A. Manually add
B. Automatically added
C. Batch add
D. Script addition
Answer: ABC
72. Which of the following protocols is the 802.11 standard formulated by IEEE? (Multiple
choice)
A. 802.11a/b/g/n
B. 802.11i
C. 802.1X
D. 802.11s
Answer: ABD
 19 / 20
 
More Hot Exams are available.
350-401 ENCOR Exam Dumps
350-801 CLCOR Exam Dumps
200-301 CCNA Exam Dumps
Powered by TCPDF (www.tcpdf.org)
 20 / 20
https://www.certqueen.com/promotion.asp
https://www.certqueen.com/350-401.html
https://www.certqueen.com/350-801.html
https://www.certqueen.com/200-301.html
http://www.tcpdf.org