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Free Huawei H12-811 Practice Questions & Answers 2026 Part5 | HCIA-Datacom

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Question #1
Which of the following is not the reason why RSTP can increase the speed of convergence? ()
A. /A
B. ast switching of the root port
C. orward
D. he introduction of edge ports
View answer
Correct Answer: C

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Question #2
The following description of the Layer 2 Ethernet switch is incorrect ().
A. Need to make certain modifications to the layer 3 header of the forwarded message, and then forward it
B. Able to learn MAC
C. Forward according to the Layer 2 header information of the Ethernet frame
D. Layer 2 Ethernet switch works at the data link layer
View answer
Correct Answer: A
Question #3
The IP addresses of the VLANIF interfaces of the same switch cannot be the same. ()
A. True
B. False
View answer
Correct Answer: A
Question #4
On Huawei routers, what is the default value of the OSPF protocol internal routing priority? ()
A. 20
B. 10
C. 30
D. 0
View answer
Correct Answer: B
Question #5
What is the port number used by the FTP protocol control plane? ()
A. 23
B. 24
C. 21
D. 22
View answer
Correct Answer: C
Question #6
When learning this switch needs to forward the frame with the destination MAC. The address is 5489-98ec-f011, the following description is correct ()
A. The switch will flood the frame on all ports except the port that received the frame
B. The switch will send a message that the destination is unreachable to the source device
C. The switch does not find a matching entry in the MA address table, so the frame will be discarded
D. The switch needs to discover the MAC by sending a request
View answer
Correct Answer: A
Question #7
The Trunk port can send both tagged data frames and untagged data frames.
A. True
B. False
View answer
Correct Answer: A
Question #8
What is the range of VLAN ID that users can use? ()
A. 1-4096
B. 1-4094
C. 0-4096
D. 0-4095
View answer
Correct Answer: B
Question #9
AP does not need AC. It can independently complete the work of wireless user access, wireless user authentication, and business data forwarding.
A. True
B. False
View answer
Correct Answer: B
Question #10
Trunk interfaces can send both tagged and untagged frames.
A. rue
B. alse
View answer
Correct Answer: A
Question #11
As shown in the figure, the host has ARP cache. Host A sends a data packet to host B. Which of thefollowing are the destination MAC address and destination IP address of the data packet?
A. AC-A, 11
B. AC-C, 11
C. AC-C, 10
D. AC-B, 11
View answer
Correct Answer: B
Question #12
The router ID of the OSPF-enabled router must be the same as the IP address of an interface on therouter.
A. RUE
B. ALSE
View answer
Correct Answer: B
Question #13
System-view (huawei) command-privilege level3 view user save is correct about the above configuration command ()
A. Modify the user's authority level to 3, and save the configuration
B. Modify the permission level of the user view command to 3, and save the configuration
C. Modify the authority level of the save command used by a user to 3
D. Modify the permission level of the save command in the user view to 3
View answer
Correct Answer: D
Question #14
As shown in the figure, if host A has the ARP cache of host B, host A can ping host B.
A. ATRUE
B. BFALSE
View answer
Correct Answer: A
Question #15
The configuration information of a certain port of the switch is shown in the figure. Then, when the data frame of which VLAN is sent by this port, it carries the VLAN TAG? ()interface GigabitEtherneto/0/1 port hybriD.taggeD.vlan 2 to 3 100 port hybriD. untaggeD. vlan 4 6#
A. 1, 2
B. 2, 3, 100
C. 1, 2, 3, 4
D. 2
View answer
Correct Answer: B
Question #16
NAPT and Easy IP translate both IP addresses and port numbers to allow multiple private IP addresses to share multiple public IP addresses.
A. TRUE
B. FALSE
View answer
Correct Answer: A
Question #17
Can the administrator modify the device name for the router under ()?
A. User-view
B. Protocol-view
C. System-view
D. Interface-view
View answer
Correct Answer: C
Question #18
There is a WeB server in the private network that needs to provide HITP services to public network users. Therefore, the network administrator needs to configure NAT on the gateway router RTA.
A. RTA-Gigabitethernet0/0/1 nat server protocol tcp global 192
B. (RTA-Serial1/0/1) nat server protocol tcpglobal 192
C. (RTA-Gigabitethernet0/0/1) nat server protocol tcp global 202
D. (RTA-Serial1/0/1) nat server protocol top global 202
View answer
Correct Answer: D
Question #19
What protocol does OSPF run over?
A. ATCP
B. BHTTP
C. CUDP
D. DIP
View answer
Correct Answer: D
Question #20
Trunk interfaces can send both tagged and untagged frames.
A. TRUE
B. FALSE
View answer
Correct Answer: A
Question #21
You can enter a question mark (?) in the CLI of a Huawei switch to obtain online help. Which of the following statements is true about the meaning of in the output of the command sysname SW1?[HUAWEI] sysname SW1?
A. here is no keyword or parameter in that position
B. he command is incomplete
C. here are too many parameters in that position
D. he entered keywords are incorrect
View answer
Correct Answer: A
Question #22
Currently, the company has a network administrator, and the AR2200 in the company network can be remotely managed by directly entering the password through Telnet. After the two new network administrators arrived, the company hopes to assign their own user names and passwords to all the administrators, as well as different levels of authority. So how should it be done? ()
A. Each administrator uses a different public IP address of the device when running the Telnet command
B. The user authentication mode configured by Telnet must be AAA
C. When configuring each administrator’s account, different permission levels need to be configured
D. Configure three user names and their corresponding passwords in the AAA
View answer
Correct Answer: BCD
Question #23
In the campus network, the reliability of the network can be improved by using link aggregation and stacking technology. ()
A. True
B. False
View answer
Correct Answer: A
Question #24
Which of the following IPv6 addresses is a multicast address? ()
A. FE80:2EO:FCFF:FEEF:FEC
B. FC0O:2EO:FCFF:FEEF:FEC
C. FF02::2EO:FCFF:FEEF:FEC
D. 2000::2EO:FCFF:FEEF:FEC
View answer
Correct Answer: C
Question #25
IEEE 802.11ac supports only the 5 GHz frequency band.
A. rue
B. alse
View answer
Correct Answer: A
Question #26
Which of the following statements about direct routing is correct? ()
A. Direct routing requires the administrator to manually configure the destination network and next hop address
B. Direct routes have lower priority than static routes
C. Direct routing has lower priority than dynamic routing
D. Direct routing has the highest priority
View answer
Correct Answer: D
Question #27
For the description of the PPP link establishment process, the following statement is wrong ()
A. In the Establish phase, the PPP link performs LCP parameter negotiation
B. After the NCP negotiation is successful, the PPP link will maintain the communication state and enter the Terminate phase
C. The Dead phase is also called the physical layer unavailable phase
D. In the Network phase, the PPP link performs NCP negotiation
View answer
Correct Answer: B
Question #28
When a switch port receives a frame that does not carry a VLAN tag, it must add a PVID to the frame.
A. rue
B. alse
View answer
Correct Answer: A
Question #29
The RSTP protocol uses the P/A mechanism to speed up the upstream port's transition to the Forwarding state, but what is the reason for no temporary loop? ()
A. Speed up port role election
B. Ensure that there will be no temporary loops through the synchronization mechanism
C. Edge port
D. Reduced the time of ForwarDelay
View answer
Correct Answer: B
Question #30
AC uses CAPTAP control tunnel transmission to FIt AP management packet
A. True
B. False
View answer
Correct Answer: B
Question #31
R1 has the following configurations:[R1] nat address-group test 1[R1-address-group-test] section 1 100.1.23.1 100.1.23.254[R1-address-group-test] mode pat[R1-address-group-test] quit[R1] nat-policy[R1-policy-nat] rule name test[R1-policy-nat-rule-test] source-address range 192.168.0.0 192.168.255.255[R1-policy-nat-rule-test] action source-nat address-group test[R1-policy-nat-rule-test] quit[R1-policy-nat] quit[R1] interface GE 0/0/2[R1-GE0/0/2] nat enable[R1-GE0/0/2] quitWhich of the following statements is false?
A. The intranet user with the IP address 192
B. If data packets from intranet users are not sent through GE0/0/2 of R1, the users may fail to access the public network
C. An intranet user's post-NAT IP address may be 100
D. The post-NAT IP addresses of intranet users with different IP addresses must be different
View answer
Correct Answer: D
Question #32
Which statement about OSPF area division is wrong? ( )
A. he LSDBs in the routers in the same OSPF area are exactly the same
B. reA
C. nly ABR can be used as ASBR
D. ividing OSPF areas can reduce the size of the LSDB of some routers
View answer
Correct Answer: C
Question #33
Currently, the company has a network administrator, and the AR2200 in the company network can be remotely managed by directly entering the password through Telnet. After the two new network administrators arrived, the company hopes to assign their own user names and passwords to all the administrators, as well as different levels of authority. So how should it be done? ()
A. Each administrator uses a different public IP address of the device when running the Telnet command
B. The user authentication mode configured by Telnet must be AAA
C. When configuring each administrator’s account, different permission levels need to be configured
D. Configure three user names and their corresponding passwords in the AAA
View answer
Correct Answer: BCD
Question #34
An engineer is configuring Fit AP onboarding on a Huawei WAC. After the engineer completes network connectivity and CAPWAP configuration, the next step is to configure the AP authentication mode.Which AP authentication modes can the engineer choose to configure? (Choose all that apply.)
A. [WAC-wlan-view] ap auth-mode ip-auth
B. [WAC-wlan-view] ap auth-mode mac-auth
C. [WAC-wlan-view] ap auth-mode sn-auth
D. [WAC-wlan-view] ap auth-mode no-auth
View answer
Correct Answer: BCD
Question #35
What kind of message does the OSPF protocol use to confirm the received LSU message? ()
A. LSU
B. LSR
C. LSACK
D. LSA
View answer
Correct Answer: C
Question #36
On Huawei routers, what is the default value of the OSPF protocol internal routing priority? ()
A. 20
B. 10
C. 30
D. 0
View answer
Correct Answer: B
Question #37
Which of the following statements is correct? ()
A. he switch works at the physical layer
B. he switch works at the network layer
C. he router works at the physical layer
D. he router works at the network layer
View answer
Correct Answer: D
Question #38
Trunk interfaces can send both tagged and untagged frames.
A. True
B. False
View answer
Correct Answer: A
Question #39
Which of the following IPv4 addresses the host uses cannot directly access the Internet? ()
A. 100
B. 50
C. 10
D. 200
View answer
Correct Answer: C
Question #40
The Layer 2 networking of WLAN refers to STA. It uses AC as its own gateway. ()
A. True
B. False
View answer
Correct Answer: A
Question #41
VRP operating platform, which of the following commands can only view static routes? ()
A. display ip routing-table statistics
B. display ip routing-table verbose
C. display ip routing-table
D. display ip routing-table protocol static
View answer
Correct Answer: D
Question #42
The link aggregation interface can only be used as a Layer 2 interface (C)
A. True
B. False
View answer
Correct Answer: A
Question #43
To provide different network services for different users on the AP, which of the following can be configured?
A. TAP
B. VAP
C. VAC
D. VT
View answer
Correct Answer: C
Question #44
The IP addresses of the VLANIF interfaces of the same switch cannot be the same. ()
A. True
B. False
View answer
Correct Answer: A
Question #45
As name is admin and the password is Huawei (@123. The following is the correct way to log in to this device using telnetliB. ()
A. telnetlib
B. telnetlib
C. telnetlib
D. telnetlib
View answer
Correct Answer: A
Question #46
In the figure, a TCP connection has been established between PC1 and PC2. After PC1 sends a data segment to PC2, which of the following is the acknowledgment number in the packet returned by PC2?
A. Ab+23
B. Ba+44
C. Cb+1
D. Da+22
View answer
Correct Answer: B
Question #47
Switch stacking supports more than two devices, and multiple switches can be grouped into a logical device through stacking. ()
A. True
B. False
View answer
Correct Answer: A
Question #48
The RSTP protocol uses the P/A mechanism to speed up the speed of the upstream port to the F orwarding state, but what is the reason for the no temporary loop? . Shorten the time of ForwarD.Del ay
A. Shorten the time of ForwarD
B. Edge port
C. Speed up port role election
D. Ensure that there will be no temporary loops through the synchronization mechanism
View answer
Correct Answer: D
Question #49
When two OSPF routers form a 2-WAY neighbor relationship, LSDB. has been synchronized. ()
A. True
B. False
View answer
Correct Answer: B
Question #50
Using a traditional landline to make a call is a way of network communication.
A. True
B. False
View answer
Correct Answer: B

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