Free Huawei H12-811 Practice Questions & Answers 2026 Part4 | HCIA-Datacom

After FIT AP obtains AC.'s IP address, what is the first operation to perform? ()

Which of the following packets are OSPF packets?

During STP calculation, the port cost is associated with the port bandwidth by default. Which of the following statements about the relationship between port cost and port bandwidth is true?

The Priority field in the VLAN tag can identify the priority of the data frame. What is the scope of this priority? ()

The only way for the STA to discover the wireless network is through the Beacon frame sent externally by the AP.

Which of the following commands can be used to view the CPU usage of the router? ()

On Huawei equipment, if AAA authentication is used for authorization, when the remote server does not respond, authorization can be performed from the network equipment side ()

Which of the following protocols is OSPF based on?

When Huawei switches allow STP, the priority of the switch by default is ()

The following command output is displayed on R1: [R1] display aaa configuration Domain Name Delimiter : @ Domainname parse direction : Left to right Domainname location : After-delimiter Administrator user default domain : default_admin Normal user default domain : default Domain : total: 256 used: 3 Authentication-scheme : total: 32 used: 2 Accounting-scheme : total: 32 used: 1 Authorization-scheme : total: 32 used: 2 Service-scheme : total: 256 used: 0 Recording-scheme : total: 32 used: 0 Local-user : total: 512 used: 2 Remote-admin-user block retry-interval : 5 Min(s) Remote-admin-user block retry-time : 3 Remote-admin-user block time : 5 Min(s) Session timeout invalid enable : No Which of the following statements is false? Comprehensive and Detailed 150 to 200 words of Explanation From Datacom knowledge: The false statement is B. From the AAA configuration output, the value of Remote-admin-user block time is clearly shown as 5 Min(s), which means the account lockout duration is 5 minutes, not 30 minutes. Option A is true because Remote-admin-user block retry-time : 3 indicates that after 3 consecutive authentication failures, the account will be blocked. Option C is also true because the displayed Domain Name Delimiter is @, which is the separator used in usernames such as user@huawei.com. Option D is true as well because the output shows Local-user : total: 512 used: 2, meaning that the device supports a maximum of 512 local users, and currently 2 local users have been created. This question checks the ability to correctly read AAA configuration output on Huawei devices. In HCIA-Datacom knowledge, it is important to distinguish between retry interval, retry count, and block time, because these values represent different security control parameters and are often confused during troubleshooting or configuration review.

On the VRP CLI, files cannot be permanently deleted using the delete or delete /unreserved command. To permanently delete them, you need to delete the files in the recycle bin.

The priority of the LACP protocol is shown in the figure. Switch A and Switch B adopt LACP mode linkaggregation, and all interfaces are added to the link aggregation group. At the same time, set themaximum number of active ports to 3. Then which port of switch A is not an active port ? () (Single-choice question)

When the host frequently moves the office, which VLAN division method is most suitable? ()

Which of the following is not included in the VRP system login method? ()

The static MAC. address table will not be lost after the system restarts ()

When an FTP client logs in to a Huawei network device that functions as an FTP server, which of the following commands can be used to upload a local file to the FTP server?

If a windows host is started for the first time, if it uses DHCP to obtain an IP address, what is the source IP address of the first packet sent by this host? ()

What is the length of the Ethernet II frame containing the Ethernet header?

RSTP protocol does not include which of the following port states?

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?

When an Access type port sends a message, it will ()·

The rules in an ACL may overlap. If packets match the rules with loose conditions, the later ACL rules are not processed. In this case, packets cannot match the rules with strict conditions. Therefore, the rules with strict conditions must be arranged in front lines and those with loose conditions must be arranged towards the end. Access Control Lists (ACLs) are processed in sequential order, meaning that once a packet matches a rule, subsequent rules are ignored. To ensure that more specific (strict) conditions are applied, strict rules should be listed first, followed by loose rules. (Reference: HCIA-Datacom Training Material, ACL Configuration and Rule Order)

The election of the root switch in STP only compares the priority of the switch, while in RSTP, the priority of the switch is compared with the MAC address at the same time. ()

What is the length of the Ethernet II frame containing the Ethernet header?

Which bridge is in the configuration BPDU sent by the switchID. Impossible to appear?

Which of the following descriptions of wireless devices is correct? ()

A network administrator wishes to assign an IP address to a router interface G0/0/0. Which of the following IP addresses can be assigned?

Which of the following IPv4 addresses the host uses cannot directly access the Internet? ()

The DHCPv6 server supports the provision of other configuration information such as DNS server addresses for the host. ()

Apply the ACL configured in the figure in Telnet. Only the device with the IP address of172.16.105.2 is allowed to log in remotely: ()#acl number 2000 rule 5 permit source172.16.105.20#

Which of the following descriptions about the switch is wrong? ()

The administrator wants to configure the P address on the G0/0/0 interface of the router. Which of the following addresses is correct?

What is the IEEE802.11 standard corresponding to Wi-F16? ()

If the network administrator assigns the IPv4 address 192.168.1.1/28 to a host on the network, how many hosts can be added to the network where the host resides?

What is the IEEE802.11 standard corresponding to Wi-F16? ()

Which of the following descriptions about firewalls is wrong? ()

What is the port number used by the FTP protocol control plane? ()

Which of the following phases are required for establishing a connection between an SSH server and an SSH client? (Select all that apply)

Which of the following packets are OSPF packets?

For the description of the PPP link establishment process, the following statement is wrong ()

In the figure, a web client sends an HTTP request to a web server, and the router in between performs operations on the HTTP request. Which of the following statements are false about the router’s operations? (Select all that apply)

When a host uses the IP address 192.168.1.2 to access the Internet, NAT must be performed.

When the port of the switch sends a data frame with the same VLAN TAG and PVID, it must strip the VLAN TAG for forwarding.

AAA is short for authentication, authorization, and accounting. The accounting function records only the fees incurred when users use network resources, but not the Internet access traffic or duration.

In standard STP mode, which of the following non-root switches will forward the C-set BPDU generated by the root switch? ()

The following figure shows the configuration of a sub-interface on a router. For which VLAN does the sub- interface receive tagged data frames?

Which of the following statements are true about the Python code shown below? (Select all that apply)import paramikoimport timessh = paramiko.SSHClient()ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())ssh.connect('192.168.1.254', username='python', password='Huawei@123')channel = ssh.invoke_shell()channel.send('screen-length 0 temporary\n')time.sleep(1)output = channel.recv(65535).decode('utf-8')print(output)ssh.close()

RADIUS is a common protocol to implement AAA.

When two OSPF routers form a 2-WAY neighbor relationship, the LSDB. has been synchronized. ()

The login timeout period in the VRP system can only be set under the VTY interface.