H12-811_V1.0 Free Update With 100% Exam Passing Guarantee [2026]
[Jan-2026] Verified Huawei Exam Dumps with H12-811_V1.0 Exam Study Guide
The HCIA-Datacom certification is a foundational-level certification that provides candidates with a solid understanding of data communication technologies, including IP routing, switching, security, and network management. HCIA-Datacom V1.0 certification is designed for network engineers, administrators, and technicians who are responsible for designing, implementing, and maintaining data communication solutions.
NEW QUESTION # 78
Which of the following statements about static routes on Huawei devices is false?
- A. The cost of a static route cannot be changed.
- B. The default preference value of a static route is 60.
- C. The preference value of a static route is in the range 1 to 255.
- D. When the preference value of a static route is 0, this static route is selected as the optimal route.
Answer: A
Explanation:
Explanation:
NEW QUESTION # 79
UDP is connectionless and must rely on () to ensure the reliability of transmission.
- A. Transmission Control Protocol
- B. Network layer protocol
- C. Application layer protocol
- D. Internet Protocol
Answer: B
NEW QUESTION # 80
The network is shown in the figure below. Switch configuration information is shown in the figure. Which of the following statements is correct? () (Multiple Choice Questions)
- A. Data frames on the two links do not include VLANTAG
- B. The PVID of the switch GigabitEthernet0//1 port is 20
- C. Host A and Host B cannot be pinged
- D. Host A and Host B can be pinged
Answer: A,B,D
NEW QUESTION # 81
On the switch, which VLANs can be deleted by using the undo command? ()*
- A. vlan 4094
- B. vlan 1024
- C. vlan 2
- D. vlan 1
Answer: A,B,C
NEW QUESTION # 82
What are the components of the OSI reference model from top to bottom?
- A. Application layer, presentation layer, session layer, transport layer, network layer, data link layer, and physical layer
- B. Application layer, transport layer, network layer, data link layer, and physical layer
- C. Application layer, presentation layer, session layer, network layer, transport layer, data link layer, and physical layer
- D. Application layer, session layer, presentation layer, transport layer, network layer, data link layer, and physical layer
Answer: A
NEW QUESTION # 83
The network is shown in the figure below. The following statementcorrectIs there? () (Multiple Choice Questions)
- A. Host B and Host C can ping through
- B. Host A and Host c can ping through
- C. Host A and Host B cannot ping through
- D. All hosts can ping each other
Answer: A,B,C
NEW QUESTION # 84
The NAT configuration is as follows, which IP can be converted when accessing the public network (RTA) acl2000 (RTA-acl-basic-2000) rule5 permit source 192.168.1.00.0.0.255 RTA-acl-basic-2000) rule 10 deny source 192.168. 1.30 (RTA-acl-basic-2000) quit RTA) interface serial1/0/0 (RTA-Serial1/0/0) nat outbounD.2000*
- A. 192.168.1.1
- B. 192.168.1.3
- C. 192.168.1.2
- D. 192.168.2.1
Answer: A,B,C
NEW QUESTION # 85
The router Radius information configuration is shown in the figure. Which of the following statements are correct? ( )#Radius-server template Huawei radius-server shared.key cipher Huawei radius-server authentication 200.0.12.1 1812 radius-server accounting 200.0.12.1 1813#*
- A. The source IP address of the Radius packet sent by the router is 200.0.12.2
- B. The P address of the authorization server is 200.0.12.1
- C. The P address of the authentication server is 200.0.12.1
- D. The P address of the accounting server is 200.0.12.1
Answer: B,C,D
NEW QUESTION # 86
On the network shown in the figure, router A adopts link aggregation in manual load balancing mode, and G0
/0/1 and G0/0/2 are added to link aggregation group (LAG) 1. Which of the following statements is false about Eth-Trunk 1 on router A?
- A. If both G0/0/1 and G0/0/2 on router B are disabled, Eth-Trunk 1 is Down.
- B. If only G0/0/2 on router B is disabled, Eth-Trunk 1 is Up.
- C. If both G0/0/1 and G0/0/2 on router B are disabled, Eth-Trunk 1 is Up.
- D. If only G0/0/1 on router B is disabled, Eth-Trunk 1 is Up.
Answer: C
Explanation:
Explanation:
NEW QUESTION # 87
As shown in the figure below, the network. All switches enable the STP protocol. Disable SWA's G0/0/2 port to configure the BPDU sending function. SWC's G0/0/1 reconverges to become the root port. Which of the following statements is correct about this process? () (Multiple Choice Questions)
- A. SWB sends configuration BPDU with TCA set to SWC
- B. SWB forwards TCN BPDU to SWA
- C. D. SWA sends configuration BPDU with TC set
- D. SWC sends TCN BPDU to SWB
Answer: A,B,D
NEW QUESTION # 88
Which stage in the life cycle of campus network construction is the beginning of a project? ()
- A. Network implementation
- B. Network operation and maintenance
- C. Planning and design
Answer: B
NEW QUESTION # 89
The transmission rate of an Eth-Trunk port in manual link aggregation mode is related to ().
- A. Number of member ports
- B. Is an IP address configured on the member port
- C. Bandwidth of member ports
- D. Is the member port on the public network or on the private network
Answer: A,C
NEW QUESTION # 90
As shown in the figure, the configuration of Router A is as follows. Which of the following statements is/are incorrect?
- A. The host with the source IP address 200.0.12.6 cannot access the Internet.
- B. The host with the source IP address 200.0.12.4 cannot access the Internet.
- C. The host with the source IP address 200.0.12.8 cannot access the Internet.
- D. The host with the source IP address 200.0.12.2 cannot access the Internet.
Answer: C
Explanation:
To determine which statement is incorrect, we need to analyze the ACL configuration on Router A and understand how it filters outbound traffic to the Internet. Let's break down the configuration step by step, referencing HCIA Datacom principles for ACL processing and traffic filtering.
1. Understanding the ACL Configuration
The configuration on Router A is as follows:
text
WrapCopy
acl number 2000
rule 5 deny source 200.0.12.0 0.0.0.7
rule 10 permit source 200.0.12.0 0.0.0.15
#
interface GigabitEthernet0/0/1
traffic-filter outbound acl 2000
#
* ACL Number 2000: This is a basic ACL used to filter traffic based on source IP addresses.
* Rule 5: deny source 200.0.12.0 0.0.0.7
* The wildcard mask 0.0.0.7 translates to a subnet mask of /29 (255.255.255.248).
* The IP range for 200.0.12.0 0.0.0.7 is calculated as:
* Network address: 200.0.12.0
* Broadcast address: 200.0.12.7
* Usable host addresses: 200.0.12.1 to 200.0.12.6 (6 usable addresses in a /29 subnet).
* Therefore, this rule denies traffic from any source IP in the range 200.0.12.1-200.0.12.6.
* Rule 10: permit source 200.0.12.0 0.0.0.15
* The wildcard mask 0.0.0.15 translates to a subnet mask of /28 (255.255.255.240).
* The IP range for 200.0.12.0 0.0.0.15 is:
* Network address: 200.0.12.0
* Broadcast address: 200.0.12.15
* Usable host addresses: 200.0.12.1 to 200.0.12.14 (14 usable addresses in a /28 subnet).
* Therefore, this rule permits traffic from any source IP in the range 200.0.12.1-200.0.12.14.
* Interface Configuration: The ACL 2000 is applied outbound on interface GigabitEthernet0/0/1, meaning it filters traffic leaving Router A toward the Internet.
2. ACL Processing Logic (HCIA Datacom Reference)
According to HCIA Datacom documentation (e.g., Huawei ACL fundamentals), ACLs are processed in sequential order, and the first matching rule determines the action (permit or deny). If no rule matches, the implicit deny rule at the end of the ACL blocks the traffic. In this case:
* Rule 5 denies traffic from 200.0.12.1-200.0.12.6.
* Rule 10 permits traffic from 200.0.12.1-200.0.12.14.
* Since Rule 5 is processed before Rule 10, any IP in the overlap (i.e., 200.0.12.1-200.0.12.6) will be denied by Rule 5, even though Rule 10 would permit it.
* IPs outside 200.0.12.1-200.0.12.6 but within 200.0.12.1-200.0.12.14 are permitted by Rule 10.
* Any IP not matching Rule 5 or Rule 10 is implicitly denied (but no such IPs are listed in the options).
3. Evaluating Each Option
Now, let's check each host IP address against the ACL rules to determine if they can access the Internet:
* A. The host with the source IP address 200.0.12.6 cannot access the Internet.
* 200.0.12.6 falls within the range 200.0.12.1-200.0.12.6, which is denied by Rule 5.
* Therefore, this statement is correct (the host cannot access the Internet).
* B. The host with the source IP address 200.0.12.8 cannot access the Internet.
* 200.0.12.8 does not fall within the range 200.0.12.1-200.0.12.6 (denied by Rule 5).
* It does fall within the range 200.0.12.1-200.0.12.14 (permitted by Rule 10).
* Therefore, 200.0.12.8 is permitted to access the Internet, making this statement incorrect.
* C. The host with the source IP address 200.0.12.2 cannot access the Internet.
* 200.0.12.2 falls within the range 200.0.12.1-200.0.12.6, which is denied by Rule 5.
* Therefore, this statement is correct (the host cannot access the Internet).
* D. The host with the source IP address 200.0.12.4 cannot access the Internet.
* 200.0.12.4 falls within the range 200.0.12.1-200.0.12.6, which is denied by Rule 5.
* Therefore, this statement is correct (the host cannot access the Internet).
4. Conclusion
The only incorrect statement is B, as the host with the source IP address 200.0.12.8 can access the Internet because it is permitted by Rule 10 and not denied by Rule 5.
5. HCIA Datacom References
This analysis aligns with the HCIA Datacom curriculum, specifically:
* ACL Fundamentals: Huawei's documentation on basic ACLs (e.g., ACL 2000-2999 for IPv4) and their rule processing order (first match wins).
* Traffic Filtering: Outbound ACL application on interfaces, as described in Huawei router configuration guides.
* Wildcard Mask Calculation: Standard IP addressing and subnetting principles for determining IP ranges (e.g., /29 and /28 subnets).
These principles are detailed in the HCIA Datacom V1.0 training materials, particularly in the sections on ACL configuration, IP addressing, and interface-based traffic control.
NEW QUESTION # 91
The network is shown in the figure below. The router uses a sub-interface as the host gateway. The gateway IP address is 10.0.12.2. Which of the following commands can achieve this requirement? () (Multiple Choice Questions)
- A. interface GigabitEtherneto/0/0.10Dotlq termination vid 20
Ip address10.0.12.2255.255.255.0Arp broadcast enable - B. interface GigabitEthernet0/0/0.20Dotlg termination vid 10
Ip address10.0.12.2255.255.255.0Arp broadcast enable - C. interface GigabitEthernet0/0/0.10Dotlq termination vid 10
Ip address10.0.12.2255.255.255.0 Arp broadcast enable # - D. interface GigabitEthernet0/0/0.20Dotlq termination vid 20
Ip address10.0.12.2255.255.255.0Arp broadcast enable #
Answer: A,D
NEW QUESTION # 92
Two switches use manual link aggregation at the same time. The following statement is wrong. () (Single- choice question)
- A. Turn off the G0/0/1 and G0/0/2 ports on switch B, and the Efh-Trunk status is still UP
- B. Turn off the G0/0/1 and G0/0/2 ports on switch B. The Eth-Trunk status is down
- C. Only switch off G0/0/2 port on switch B. The Eth-Trunk status is still UP
- D. Only switch off G0/0/1 port on switch B. The Eth-Trunk status is still UP
Answer: A
NEW QUESTION # 93
In the network shown in the figure below, the host has an ARP cache. Which of the following statements is correct?
- A. host A and machine B can communicate in two directions
- B. The router needs to be configured with static routing, otherwise host A and soil machine B cannot communicate in both directions
- C. The following entries exist in the ARP cache of host A: 11.0.12.1 MAC-B
- D. There may be the following entry 10.0.12.2MAC-C in the ARP cache of host A
Answer: A,D
NEW QUESTION # 94
Refer to the graphic: 00e0-fc99-9999 is a specific host MAC address learned by a switch through ARP, and the host changes the IP address three times.
Is the following statement true or false?
"The MAC address 00e0-fc99-9999 is dynamically associated with multiple IP addresses."
- A. FALSE
- B. TRUE
Answer: B
Explanation:
* Understanding ARP Entries:
* Each ARP entry associates a MAC address with an IP address dynamically or statically.
* In the table, the MAC address 00e0-fc99-9999 is linked to multiple IP addresses across different interfaces.
* Dynamic MAC Address Assignment:
* As the host changes its IP address, the MAC address remains consistent.
* Conclusion:
* The statement is TRUE because the MAC address 00e0-fc99-9999 appears with three different IP addresses dynamically.
References: HCIA-Datacom V1.0 Certification Guide, Chapter 5: ARP Protocol.
NEW QUESTION # 95
As shown in the figure below, host A and host B cannot communicate ()
- A. True
- B. False
Answer: A
NEW QUESTION # 96
As shown in the figure, if the command ping 10.1.1.2 is executed on R1, the data frame of VLAN 10 received from LSW2 by LSW1 is tagged. ()(True or False)
- A. True
- B. False
Answer: A
NEW QUESTION # 97
The main function of the DNS protocol is ()
- A. file transfer
- B. C. Remote access
- C. D. Mail transfer
Answer: B
NEW QUESTION # 98
The MAC address table of the existing switches is shown in the figure. Which of the following statements are correct?
- A. When the switch restarts, the MAC address learned by port Eth0/0/3 needs to be re-learned
- B. The data frame with the source MAC address of 5489-9811-0b49 and the destination MAC address of
5489-989d-1d30 received from the port is forwarded from the Eth0/0/2 port - C. When the switch restarts, the MAC address learned by port Eth0/0/2 does not need to be relearned
- D. The data frame with the source MAC address of 5489-9885-18a8 and the destination MAC address of
5489-989d-1d30 received from the port is forwarded from the Eth0/0/1 port
Answer: D
NEW QUESTION # 99
In the network shown in the figure below, there are the following configurations in Router A. Which of the following statements is correct?
ip route-statiC.10.0.2.2255.255.255.25510.0.12.2iP
Route-statiC.10.0.2.2255.255.255.25510.0.21.2pre ference 70
- A. The Next in the routing table of Router A reaches 10.0.2.2. Hop is 10.0.12.2
- B. If the G0/0/1 port is Down, the route NextHap from Router A to 10.0.2.2 is changed to 10.0.21.2
- C. If the G0/0/2 port is Down, then Router A reaches 10.0.2.2. The route NextHop. is changed to 10.012.2
- D. The Next in the routing table of Router A reaches 10.0.2.2. Hop is 10.0.21.2
Answer: A,B
NEW QUESTION # 100
What kind of packets does the OSPF protocol use to request LSAs that are missing locally? ()
- A. B. LSACK
- B. LSR
- C. D. LSU
Answer: C
NEW QUESTION # 101
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Huawei H12-811_V1.0 (HCIA-Datacom V1.0) is a professional-level certification exam offered by Huawei Technologies Co. Ltd. HCIA-Datacom V1.0 certification exam is designed to validate the skills and knowledge of IT professionals in data communication technologies. H12-811_V1.0 exam covers a wide range of topics, including network technologies, protocols, network devices and equipment, network security, and network management.
Huawei H12-811_V1.0 Exam is an entry-level certification that is suitable for individuals who are new to the field of data communications. It is an excellent option for those who want to start a career in this field and for those who want to upgrade their skills and knowledge. H12-811_V1.0 exam is also suitable for professionals who want to validate their skills and knowledge in this field and enhance their career prospects.
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